storage_tests.py
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storage_tests.py
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	# Copyright (C) 2015-2020 The Software Heritage developers
	# See the AUTHORS file at the top-level directory of this distribution
	# License: GNU General Public License version 3, or any later version
	# See top-level LICENSE file for more information

	from collections import defaultdict
	import datetime
	from datetime import timedelta
	import inspect
	import itertools
	import math
	import random
	from typing import Any, ClassVar, Dict, Iterator, Optional

	import attr
	from hypothesis import HealthCheck, given, settings, strategies
	import pytest

	from swh.model import from_disk
	from swh.model.hashutil import hash_to_bytes
	from swh.model.hypothesis_strategies import objects
	from swh.model.identifiers import SWHID
	from swh.model.model import (
	Content,
	Directory,
	MetadataTargetType,
	Origin,
	OriginVisit,
	OriginVisitStatus,
	Person,
	Revision,
	SkippedContent,
	Snapshot,
	TargetType,
	)
	from swh.storage import get_storage
	from swh.storage.common import origin_url_to_sha1 as sha1
	from swh.storage.exc import HashCollision, StorageArgumentException
	from swh.storage.interface import ListOrder, PagedResult, StorageInterface
	from swh.storage.utils import content_hex_hashes, now, round_to_milliseconds


	def transform_entries(
	storage: StorageInterface, dir_: Directory, *, prefix: bytes = b""
	) -> Iterator[Dict[str, Any]]:
	"""Iterate through a directory's entries, and yields the items 'directory_ls' is
	expected to return; including content metadata for file entries."""

	for ent in dir_.entries:
	if ent.type == "dir":
	yield {
	"dir_id": dir_.id,
	"type": ent.type,
	"target": ent.target,
	"name": prefix + ent.name,
	"perms": ent.perms,
	"status": None,
	"sha1": None,
	"sha1_git": None,
	"sha256": None,
	"length": None,
	}
	elif ent.type == "file":
	contents = storage.content_find({"sha1_git": ent.target})
	assert contents
	ent_dict = contents[0].to_dict()
	for key in ["ctime", "blake2s256"]:
	ent_dict.pop(key, None)
	ent_dict.update(
	{
	"dir_id": dir_.id,
	"type": ent.type,
	"target": ent.target,
	"name": prefix + ent.name,
	"perms": ent.perms,
	}
	)
	yield ent_dict


	def assert_contents_ok(
	expected_contents, actual_contents, keys_to_check={"sha1", "data"}
	):
	"""Assert that a given list of contents matches on a given set of keys.

	"""
	for k in keys_to_check:
	expected_list = set([c.get(k) for c in expected_contents])
	actual_list = set([c.get(k) for c in actual_contents])
	assert actual_list == expected_list, k


	class LazyContent(Content):
	def with_data(self):
	return Content.from_dict({**self.to_dict(), "data": b"42\n"})


	class TestStorage:
	"""Main class for Storage testing.

	This class is used as-is to test local storage (see TestLocalStorage
	below) and remote storage (see TestRemoteStorage in
	test_remote_storage.py.

	We need to have the two classes inherit from this base class
	separately to avoid nosetests running the tests from the base
	class twice.
	"""

	maxDiff = None # type: ClassVar[Optional[int]]

	def test_types(self, swh_storage_backend_config):
	"""Checks all methods of StorageInterface are implemented by this
	backend, and that they have the same signature."""
	# Create an instance of the protocol (which cannot be instantiated
	# directly, so this creates a subclass, then instantiates it)
	interface = type("_", (StorageInterface,), {})()
	storage = get_storage(**swh_storage_backend_config)

	assert "content_add" in dir(interface)

	missing_methods = []

	for meth_name in dir(interface):
	if meth_name.startswith("_"):
	continue
	interface_meth = getattr(interface, meth_name)
	try:
	concrete_meth = getattr(storage, meth_name)
	except AttributeError:
	if not getattr(interface_meth, "deprecated_endpoint", False):
	# The backend is missing a (non-deprecated) endpoint
	missing_methods.append(meth_name)
	continue

	expected_signature = inspect.signature(interface_meth)
	actual_signature = inspect.signature(concrete_meth)

	assert expected_signature == actual_signature, meth_name

	assert missing_methods == []

	# If all the assertions above succeed, then this one should too.
	# But there's no harm in double-checking.
	# And we could replace the assertions above by this one, but unlike
	# the assertions above, it doesn't explain what is missing.
	assert isinstance(storage, StorageInterface)

	def test_check_config(self, swh_storage):
	assert swh_storage.check_config(check_write=True)
	assert swh_storage.check_config(check_write=False)

	def test_content_add(self, swh_storage, sample_data):
	cont = sample_data.content

	insertion_start_time = now()
	actual_result = swh_storage.content_add([cont])
	insertion_end_time = now()

	assert actual_result == {
	"content:add": 1,
	"content:add:bytes": cont.length,
	}

	assert swh_storage.content_get_data(cont.sha1) == cont.data

	expected_cont = attr.evolve(cont, data=None)

	contents = [
	obj
	for (obj_type, obj) in swh_storage.journal_writer.journal.objects
	if obj_type == "content"
	]
	assert len(contents) == 1
	for obj in contents:
	assert insertion_start_time <= obj.ctime
	assert obj.ctime <= insertion_end_time
	assert obj == expected_cont

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["content"] == 1

	def test_content_add_from_lazy_content(self, swh_storage, sample_data):
	cont = sample_data.content
	lazy_content = LazyContent.from_dict(cont.to_dict())

	insertion_start_time = now()

	actual_result = swh_storage.content_add([lazy_content])

	insertion_end_time = now()

	assert actual_result == {
	"content:add": 1,
	"content:add:bytes": cont.length,
	}

	# the fact that we retrieve the content object from the storage with
	# the correct 'data' field ensures it has been 'called'
	assert swh_storage.content_get_data(cont.sha1) == cont.data

	expected_cont = attr.evolve(lazy_content, data=None, ctime=None)
	contents = [
	obj
	for (obj_type, obj) in swh_storage.journal_writer.journal.objects
	if obj_type == "content"
	]
	assert len(contents) == 1
	for obj in contents:
	assert insertion_start_time <= obj.ctime
	assert obj.ctime <= insertion_end_time
	assert attr.evolve(obj, ctime=None).to_dict() == expected_cont.to_dict()

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["content"] == 1

	def test_content_get_data_missing(self, swh_storage, sample_data):
	cont, cont2 = sample_data.contents[:2]

	swh_storage.content_add([cont])

	# Query a single missing content
	actual_content_data = swh_storage.content_get_data(cont2.sha1)
	assert actual_content_data is None

	# Check content_get does not abort after finding a missing content
	actual_content_data = swh_storage.content_get_data(cont.sha1)
	assert actual_content_data == cont.data
	actual_content_data = swh_storage.content_get_data(cont2.sha1)
	assert actual_content_data is None

	def test_content_add_different_input(self, swh_storage, sample_data):
	cont, cont2 = sample_data.contents[:2]

	actual_result = swh_storage.content_add([cont, cont2])
	assert actual_result == {
	"content:add": 2,
	"content:add:bytes": cont.length + cont2.length,
	}

	def test_content_add_twice(self, swh_storage, sample_data):
	cont, cont2 = sample_data.contents[:2]

	actual_result = swh_storage.content_add([cont])
	assert actual_result == {
	"content:add": 1,
	"content:add:bytes": cont.length,
	}
	assert len(swh_storage.journal_writer.journal.objects) == 1

	actual_result = swh_storage.content_add([cont, cont2])
	assert actual_result == {
	"content:add": 1,
	"content:add:bytes": cont2.length,
	}
	assert 2 <= len(swh_storage.journal_writer.journal.objects) <= 3

	assert len(swh_storage.content_find(cont.to_dict())) == 1
	assert len(swh_storage.content_find(cont2.to_dict())) == 1

	def test_content_add_collision(self, swh_storage, sample_data):
	cont1 = sample_data.content

	# create (corrupted) content with same sha1{,_git} but != sha256
	sha256_array = bytearray(cont1.sha256)
	sha256_array[0] += 1
	cont1b = attr.evolve(cont1, sha256=bytes(sha256_array))

	with pytest.raises(HashCollision) as cm:
	swh_storage.content_add([cont1, cont1b])

	exc = cm.value
	actual_algo = exc.algo
	assert actual_algo in ["sha1", "sha1_git"]
	actual_id = exc.hash_id
	assert actual_id == getattr(cont1, actual_algo).hex()
	collisions = exc.args[2]
	assert len(collisions) == 2
	assert collisions == [
	content_hex_hashes(cont1.hashes()),
	content_hex_hashes(cont1b.hashes()),
	]
	assert exc.colliding_content_hashes() == [
	cont1.hashes(),
	cont1b.hashes(),
	]

	def test_content_add_duplicate(self, swh_storage, sample_data):
	cont = sample_data.content
	swh_storage.content_add([cont, cont])

	assert swh_storage.content_get_data(cont.sha1) == cont.data

	def test_content_update(self, swh_storage, sample_data):
	cont1 = sample_data.content

	if hasattr(swh_storage, "journal_writer"):
	swh_storage.journal_writer.journal = None # TODO, not supported

	swh_storage.content_add([cont1])

	# alter the sha1_git for example
	cont1b = attr.evolve(
	cont1, sha1_git=hash_to_bytes("3a60a5275d0333bf13468e8b3dcab90f4046e654")
	)

	swh_storage.content_update([cont1b.to_dict()], keys=["sha1_git"])

	actual_contents = swh_storage.content_get([cont1.sha1])
	expected_content = attr.evolve(cont1b, data=None)
	assert actual_contents == [expected_content]

	def test_content_add_metadata(self, swh_storage, sample_data):
	cont = attr.evolve(sample_data.content, data=None, ctime=now())

	actual_result = swh_storage.content_add_metadata([cont])
	assert actual_result == {
	"content:add": 1,
	}

	expected_cont = cont
	assert swh_storage.content_get([cont.sha1]) == [expected_cont]
	contents = [
	obj
	for (obj_type, obj) in swh_storage.journal_writer.journal.objects
	if obj_type == "content"
	]
	assert len(contents) == 1
	for obj in contents:
	obj = attr.evolve(obj, ctime=None)
	assert obj == cont

	def test_content_add_metadata_different_input(self, swh_storage, sample_data):
	contents = sample_data.contents[:2]
	cont = attr.evolve(contents[0], data=None, ctime=now())
	cont2 = attr.evolve(contents[1], data=None, ctime=now())

	actual_result = swh_storage.content_add_metadata([cont, cont2])
	assert actual_result == {
	"content:add": 2,
	}

	def test_content_add_metadata_collision(self, swh_storage, sample_data):
	cont1 = attr.evolve(sample_data.content, data=None, ctime=now())

	# create (corrupted) content with same sha1{,_git} but != sha256
	sha1_git_array = bytearray(cont1.sha256)
	sha1_git_array[0] += 1
	cont1b = attr.evolve(cont1, sha256=bytes(sha1_git_array))

	with pytest.raises(HashCollision) as cm:
	swh_storage.content_add_metadata([cont1, cont1b])

	exc = cm.value
	actual_algo = exc.algo
	assert actual_algo in ["sha1", "sha1_git", "blake2s256"]
	actual_id = exc.hash_id
	assert actual_id == getattr(cont1, actual_algo).hex()
	collisions = exc.args[2]
	assert len(collisions) == 2
	assert collisions == [
	content_hex_hashes(cont1.hashes()),
	content_hex_hashes(cont1b.hashes()),
	]
	assert exc.colliding_content_hashes() == [
	cont1.hashes(),
	cont1b.hashes(),
	]

	def test_skipped_content_add(self, swh_storage, sample_data):
	contents = sample_data.skipped_contents[:2]
	cont = contents[0]
	cont2 = attr.evolve(contents[1], blake2s256=None)

	contents_dict = [c.to_dict() for c in [cont, cont2]]

	missing = list(swh_storage.skipped_content_missing(contents_dict))

	assert missing == [cont.hashes(), cont2.hashes()]

	actual_result = swh_storage.skipped_content_add([cont, cont, cont2])

	assert 2 <= actual_result.pop("skipped_content:add") <= 3
	assert actual_result == {}

	missing = list(swh_storage.skipped_content_missing(contents_dict))
	assert missing == []

	def test_skipped_content_add_missing_hashes(self, swh_storage, sample_data):
	cont, cont2 = [
	attr.evolve(c, sha1_git=None) for c in sample_data.skipped_contents[:2]
	]
	contents_dict = [c.to_dict() for c in [cont, cont2]]

	missing = list(swh_storage.skipped_content_missing(contents_dict))
	assert len(missing) == 2

	actual_result = swh_storage.skipped_content_add([cont, cont, cont2])

	assert 2 <= actual_result.pop("skipped_content:add") <= 3
	assert actual_result == {}

	missing = list(swh_storage.skipped_content_missing(contents_dict))
	assert missing == []

	def test_skipped_content_missing_partial_hash(self, swh_storage, sample_data):
	cont = sample_data.skipped_content
	cont2 = attr.evolve(cont, sha1_git=None)
	contents_dict = [c.to_dict() for c in [cont, cont2]]

	missing = list(swh_storage.skipped_content_missing(contents_dict))
	assert len(missing) == 2

	actual_result = swh_storage.skipped_content_add([cont])

	assert actual_result.pop("skipped_content:add") == 1
	assert actual_result == {}

	missing = list(swh_storage.skipped_content_missing(contents_dict))
	assert missing == [cont2.hashes()]

	@pytest.mark.property_based
	@settings(deadline=None) # this test is very slow
	@given(
	strategies.sets(
	elements=strategies.sampled_from(["sha256", "sha1_git", "blake2s256"]),
	min_size=0,
	)
	)
	def test_content_missing(self, swh_storage, sample_data, algos):
	algos \|= {"sha1"}
	content, missing_content = [sample_data.content2, sample_data.skipped_content]
	swh_storage.content_add([content])

	test_contents = [content.to_dict()]
	missing_per_hash = defaultdict(list)
	for i in range(256):
	test_content = missing_content.to_dict()
	for hash in algos:
	test_content[hash] = bytes([i]) + test_content[hash][1:]
	missing_per_hash[hash].append(test_content[hash])
	test_contents.append(test_content)

	assert set(swh_storage.content_missing(test_contents)) == set(
	missing_per_hash["sha1"]
	)

	for hash in algos:
	assert set(
	swh_storage.content_missing(test_contents, key_hash=hash)
	) == set(missing_per_hash[hash])

	@pytest.mark.property_based
	@given(
	strategies.sets(
	elements=strategies.sampled_from(["sha256", "sha1_git", "blake2s256"]),
	min_size=0,
	)
	)
	def test_content_missing_unknown_algo(self, swh_storage, sample_data, algos):
	algos \|= {"sha1"}
	content, missing_content = [sample_data.content2, sample_data.skipped_content]
	swh_storage.content_add([content])

	test_contents = [content.to_dict()]
	missing_per_hash = defaultdict(list)
	for i in range(16):
	test_content = missing_content.to_dict()
	for hash in algos:
	test_content[hash] = bytes([i]) + test_content[hash][1:]
	missing_per_hash[hash].append(test_content[hash])
	test_content["nonexisting_algo"] = b"\x00"
	test_contents.append(test_content)

	assert set(swh_storage.content_missing(test_contents)) == set(
	missing_per_hash["sha1"]
	)

	for hash in algos:
	assert set(
	swh_storage.content_missing(test_contents, key_hash=hash)
	) == set(missing_per_hash[hash])

	def test_content_missing_per_sha1(self, swh_storage, sample_data):
	# given
	cont = sample_data.content
	cont2 = sample_data.content2
	missing_cont = sample_data.skipped_content
	missing_cont2 = sample_data.skipped_content2
	swh_storage.content_add([cont, cont2])

	# when
	gen = swh_storage.content_missing_per_sha1(
	[cont.sha1, missing_cont.sha1, cont2.sha1, missing_cont2.sha1]
	)
	# then
	assert list(gen) == [missing_cont.sha1, missing_cont2.sha1]

	def test_content_missing_per_sha1_git(self, swh_storage, sample_data):
	cont, cont2 = sample_data.contents[:2]
	missing_cont = sample_data.skipped_content
	missing_cont2 = sample_data.skipped_content2

	swh_storage.content_add([cont, cont2])

	contents = [
	cont.sha1_git,
	cont2.sha1_git,
	missing_cont.sha1_git,
	missing_cont2.sha1_git,
	]

	missing_contents = swh_storage.content_missing_per_sha1_git(contents)
	assert list(missing_contents) == [missing_cont.sha1_git, missing_cont2.sha1_git]

	missing_contents = swh_storage.content_missing_per_sha1_git([])
	assert list(missing_contents) == []

	def test_content_get_partition(self, swh_storage, swh_contents):
	"""content_get_partition paginates results if limit exceeded"""
	expected_contents = [
	attr.evolve(c, data=None) for c in swh_contents if c.status != "absent"
	]

	actual_contents = []
	for i in range(16):
	actual_result = swh_storage.content_get_partition(i, 16)
	assert actual_result.next_page_token is None
	actual_contents.extend(actual_result.results)

	assert len(actual_contents) == len(expected_contents)
	for content in actual_contents:
	assert content in expected_contents
	assert content.ctime is None

	def test_content_get_partition_full(self, swh_storage, swh_contents):
	"""content_get_partition for a single partition returns all available contents

	"""
	expected_contents = [
	attr.evolve(c, data=None) for c in swh_contents if c.status != "absent"
	]

	actual_result = swh_storage.content_get_partition(0, 1)
	assert actual_result.next_page_token is None

	actual_contents = actual_result.results
	assert len(actual_contents) == len(expected_contents)
	for content in actual_contents:
	assert content in expected_contents

	def test_content_get_partition_empty(self, swh_storage, swh_contents):
	"""content_get_partition when at least one of the partitions is empty"""
	expected_contents = {
	cont.sha1 for cont in swh_contents if cont.status != "absent"
	}
	# nb_partitions = smallest power of 2 such that at least one of
	# the partitions is empty
	nb_partitions = 1 << math.floor(math.log2(len(swh_contents)) + 1)

	seen_sha1s = []

	for i in range(nb_partitions):
	actual_result = swh_storage.content_get_partition(
	i, nb_partitions, limit=len(swh_contents) + 1
	)

	for content in actual_result.results:
	seen_sha1s.append(content.sha1)

	# Limit is higher than the max number of results
	assert actual_result.next_page_token is None

	assert set(seen_sha1s) == expected_contents

	def test_content_get_partition_limit_none(self, swh_storage):
	"""content_get_partition call with wrong limit input should fail"""
	with pytest.raises(StorageArgumentException, match="limit should not be None"):
	swh_storage.content_get_partition(1, 16, limit=None)

	def test_content_get_partition_pagination_generate(self, swh_storage, swh_contents):
	"""content_get_partition returns contents within range provided"""
	expected_contents = [
	attr.evolve(c, data=None) for c in swh_contents if c.status != "absent"
	]

	# retrieve contents
	actual_contents = []
	for i in range(4):
	page_token = None
	while True:
	actual_result = swh_storage.content_get_partition(
	i, 4, limit=3, page_token=page_token
	)
	actual_contents.extend(actual_result.results)
	page_token = actual_result.next_page_token

	if page_token is None:
	break

	assert len(actual_contents) == len(expected_contents)
	for content in actual_contents:
	assert content in expected_contents

	def test_content_get(self, swh_storage, sample_data):
	cont1, cont2 = sample_data.contents[:2]

	swh_storage.content_add([cont1, cont2])

	actual_contents = swh_storage.content_get([cont1.sha1, cont2.sha1])

	# we only retrieve the metadata so no data nor ctime within
	expected_contents = [attr.evolve(c, data=None) for c in [cont1, cont2]]

	assert actual_contents == expected_contents
	for content in actual_contents:
	assert content.ctime is None

	def test_content_get_missing_sha1(self, swh_storage, sample_data):
	cont1, cont2 = sample_data.contents[:2]
	assert cont1.sha1 != cont2.sha1
	missing_cont = sample_data.skipped_content

	swh_storage.content_add([cont1, cont2])

	actual_contents = swh_storage.content_get(
	[cont1.sha1, cont2.sha1, missing_cont.sha1]
	)

	expected_contents = [
	attr.evolve(c, data=None) if c else None for c in [cont1, cont2, None]
	]
	assert actual_contents == expected_contents

	def test_content_get_random(self, swh_storage, sample_data):
	cont, cont2, cont3 = sample_data.contents[:3]
	swh_storage.content_add([cont, cont2, cont3])

	assert swh_storage.content_get_random() in {
	cont.sha1_git,
	cont2.sha1_git,
	cont3.sha1_git,
	}

	def test_directory_add(self, swh_storage, sample_data):
	content = sample_data.content
	directory = sample_data.directories[1]
	assert directory.entries[0].target == content.sha1_git
	swh_storage.content_add([content])

	init_missing = list(swh_storage.directory_missing([directory.id]))
	assert [directory.id] == init_missing

	actual_result = swh_storage.directory_add([directory])
	assert actual_result == {"directory:add": 1}

	assert ("directory", directory) in list(
	swh_storage.journal_writer.journal.objects
	)

	actual_data = list(swh_storage.directory_ls(directory.id))
	expected_data = list(transform_entries(swh_storage, directory))

	for data in actual_data:
	assert data in expected_data

	after_missing = list(swh_storage.directory_missing([directory.id]))
	assert after_missing == []

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["directory"] == 1

	def test_directory_add_twice(self, swh_storage, sample_data):
	directory = sample_data.directories[1]

	actual_result = swh_storage.directory_add([directory])
	assert actual_result == {"directory:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("directory", directory)
	]

	actual_result = swh_storage.directory_add([directory])
	assert actual_result == {"directory:add": 0}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("directory", directory)
	]

	def test_directory_ls_recursive(self, swh_storage, sample_data):
	# create consistent dataset regarding the directories we want to list
	content, content2 = sample_data.contents[:2]
	swh_storage.content_add([content, content2])
	dir1, dir2, dir3 = sample_data.directories[:3]

	dir_ids = [d.id for d in [dir1, dir2, dir3]]
	init_missing = list(swh_storage.directory_missing(dir_ids))
	assert init_missing == dir_ids

	actual_result = swh_storage.directory_add([dir1, dir2, dir3])
	assert actual_result == {"directory:add": 3}

	# List directory containing one file
	actual_data = list(swh_storage.directory_ls(dir1.id, recursive=True))
	expected_data = list(transform_entries(swh_storage, dir1))
	for data in actual_data:
	assert data in expected_data

	# List directory containing a file and an unknown subdirectory
	actual_data = list(swh_storage.directory_ls(dir2.id, recursive=True))
	expected_data = list(transform_entries(swh_storage, dir2))
	for data in actual_data:
	assert data in expected_data

	# List directory containing both a known and unknown subdirectory, entries
	# should be both those of the directory and of the known subdir (up to contents)
	actual_data = list(swh_storage.directory_ls(dir3.id, recursive=True))
	expected_data = list(
	itertools.chain(
	transform_entries(swh_storage, dir3),
	transform_entries(swh_storage, dir2, prefix=b"subdir/"),
	)
	)

	for data in actual_data:
	assert data in expected_data

	def test_directory_ls_non_recursive(self, swh_storage, sample_data):
	# create consistent dataset regarding the directories we want to list
	content, content2 = sample_data.contents[:2]
	swh_storage.content_add([content, content2])
	dir1, dir2, dir3, _, dir5 = sample_data.directories[:5]

	dir_ids = [d.id for d in [dir1, dir2, dir3, dir5]]
	init_missing = list(swh_storage.directory_missing(dir_ids))
	assert init_missing == dir_ids

	actual_result = swh_storage.directory_add([dir1, dir2, dir3, dir5])
	assert actual_result == {"directory:add": 4}

	# List directory containing a file and an unknown subdirectory
	actual_data = list(swh_storage.directory_ls(dir1.id))
	expected_data = list(transform_entries(swh_storage, dir1))
	for data in actual_data:
	assert data in expected_data

	# List directory containing a single file
	actual_data = list(swh_storage.directory_ls(dir2.id))
	expected_data = list(transform_entries(swh_storage, dir2))
	for data in actual_data:
	assert data in expected_data

	# List directory containing a known subdirectory, entries should
	# only be those of the parent directory, not of the subdir
	actual_data = list(swh_storage.directory_ls(dir3.id))
	expected_data = list(transform_entries(swh_storage, dir3))
	for data in actual_data:
	assert data in expected_data

	def test_directory_ls_missing_content(self, swh_storage, sample_data):
	swh_storage.directory_add([sample_data.directory2])
	assert list(swh_storage.directory_ls(sample_data.directory2.id)) == [
	{
	"dir_id": sample_data.directory2.id,
	"length": None,
	"name": b"oof",
	"perms": 33188,
	"sha1": None,
	"sha1_git": None,
	"sha256": None,
	"status": None,
	"target": sample_data.directory2.entries[0].target,
	"type": "file",
	},
	]

	def test_directory_ls_skipped_content(self, swh_storage, sample_data):
	swh_storage.directory_add([sample_data.directory2])

	cont = SkippedContent(
	sha1_git=sample_data.directory2.entries[0].target,
	sha1=b"c" * 20,
	sha256=None,
	blake2s256=None,
	length=42,
	status="absent",
	reason="You need a premium subscription to access this content",
	)
	swh_storage.skipped_content_add([cont])

	assert list(swh_storage.directory_ls(sample_data.directory2.id)) == [
	{
	"dir_id": sample_data.directory2.id,
	"length": 42,
	"name": b"oof",
	"perms": 33188,
	"sha1": b"c" * 20,
	"sha1_git": sample_data.directory2.entries[0].target,
	"sha256": None,
	"status": "absent",
	"target": sample_data.directory2.entries[0].target,
	"type": "file",
	},
	]

	def test_directory_entry_get_by_path(self, swh_storage, sample_data):
	cont, content2 = sample_data.contents[:2]
	dir1, dir2, dir3, dir4, dir5 = sample_data.directories[:5]

	# given
	dir_ids = [d.id for d in [dir1, dir2, dir3, dir4, dir5]]
	init_missing = list(swh_storage.directory_missing(dir_ids))
	assert init_missing == dir_ids

	actual_result = swh_storage.directory_add([dir3, dir4])
	assert actual_result == {"directory:add": 2}

	expected_entries = [
	{
	"dir_id": dir3.id,
	"name": b"foo",
	"type": "file",
	"target": cont.sha1_git,
	"sha1": None,
	"sha1_git": None,
	"sha256": None,
	"status": None,
	"perms": from_disk.DentryPerms.content,
	"length": None,
	},
	{
	"dir_id": dir3.id,
	"name": b"subdir",
	"type": "dir",
	"target": dir2.id,
	"sha1": None,
	"sha1_git": None,
	"sha256": None,
	"status": None,
	"perms": from_disk.DentryPerms.directory,
	"length": None,
	},
	{
	"dir_id": dir3.id,
	"name": b"hello",
	"type": "file",
	"target": content2.sha1_git,
	"sha1": None,
	"sha1_git": None,
	"sha256": None,
	"status": None,
	"perms": from_disk.DentryPerms.content,
	"length": None,
	},
	]

	# when (all must be found here)
	for entry, expected_entry in zip(dir3.entries, expected_entries):
	actual_entry = swh_storage.directory_entry_get_by_path(
	dir3.id, [entry.name]
	)
	assert actual_entry == expected_entry

	# same, but deeper
	for entry, expected_entry in zip(dir3.entries, expected_entries):
	actual_entry = swh_storage.directory_entry_get_by_path(
	dir4.id, [b"subdir1", entry.name]
	)
	expected_entry = expected_entry.copy()
	expected_entry["name"] = b"subdir1/" + expected_entry["name"]
	assert actual_entry == expected_entry

	# when (nothing should be found here since `dir` is not persisted.)
	for entry in dir2.entries:
	actual_entry = swh_storage.directory_entry_get_by_path(
	dir2.id, [entry.name]
	)
	assert actual_entry is None

	def test_directory_get_random(self, swh_storage, sample_data):
	dir1, dir2, dir3 = sample_data.directories[:3]
	swh_storage.directory_add([dir1, dir2, dir3])

	assert swh_storage.directory_get_random() in {
	dir1.id,
	dir2.id,
	dir3.id,
	}

	def test_revision_add(self, swh_storage, sample_data):
	revision = sample_data.revision
	init_missing = swh_storage.revision_missing([revision.id])
	assert list(init_missing) == [revision.id]

	actual_result = swh_storage.revision_add([revision])
	assert actual_result == {"revision:add": 1}

	end_missing = swh_storage.revision_missing([revision.id])
	assert list(end_missing) == []

	assert list(swh_storage.journal_writer.journal.objects) == [
	("revision", revision)
	]

	# already there so nothing added
	actual_result = swh_storage.revision_add([revision])
	assert actual_result == {"revision:add": 0}

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["revision"] == 1

	def test_revision_add_twice(self, swh_storage, sample_data):
	revision, revision2 = sample_data.revisions[:2]

	actual_result = swh_storage.revision_add([revision])
	assert actual_result == {"revision:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("revision", revision)
	]

	actual_result = swh_storage.revision_add([revision, revision2])
	assert actual_result == {"revision:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("revision", revision),
	("revision", revision2),
	]

	def test_revision_add_name_clash(self, swh_storage, sample_data):
	revision, revision2 = sample_data.revisions[:2]

	revision1 = attr.evolve(
	revision,
	author=Person(
	fullname=b"John Doe <john.doe@example.com>",
	name=b"John Doe",
	email=b"john.doe@example.com",
	),
	)
	revision2 = attr.evolve(
	revision2,
	author=Person(
	fullname=b"John Doe <john.doe@example.com>",
	name=b"John Doe ",
	email=b"john.doe@example.com ",
	),
	)
	actual_result = swh_storage.revision_add([revision1, revision2])
	assert actual_result == {"revision:add": 2}

	def test_revision_get_order(self, swh_storage, sample_data):
	revision, revision2 = sample_data.revisions[:2]

	add_result = swh_storage.revision_add([revision, revision2])
	assert add_result == {"revision:add": 2}

	# order 1
	actual_revisions = swh_storage.revision_get([revision.id, revision2.id])
	assert actual_revisions == [revision, revision2]

	# order 2
	actual_revisions2 = swh_storage.revision_get([revision2.id, revision.id])
	assert actual_revisions2 == [revision2, revision]

	def test_revision_log(self, swh_storage, sample_data):
	revision1, revision2, revision3, revision4 = sample_data.revisions[:4]

	# rev4 -is-child-of-> rev3 -> rev1, (rev2 -> rev1)
	swh_storage.revision_add([revision1, revision2, revision3, revision4])

	# when
	results = list(swh_storage.revision_log([revision4.id]))

	# for comparison purposes
	actual_results = [Revision.from_dict(r) for r in results]
	assert len(actual_results) == 4 # rev4 -child-> rev3 -> rev1, (rev2 -> rev1)
	assert actual_results == [revision4, revision3, revision1, revision2]

	def test_revision_log_with_limit(self, swh_storage, sample_data):
	revision1, revision2, revision3, revision4 = sample_data.revisions[:4]

	# revision4 -is-child-of-> revision3
	swh_storage.revision_add([revision3, revision4])
	results = list(swh_storage.revision_log([revision4.id], 1))

	actual_results = [Revision.from_dict(r) for r in results]
	assert len(actual_results) == 1
	assert actual_results[0] == revision4

	def test_revision_log_unknown_revision(self, swh_storage, sample_data):
	revision = sample_data.revision
	rev_log = list(swh_storage.revision_log([revision.id]))
	assert rev_log == []

	def test_revision_shortlog(self, swh_storage, sample_data):
	revision1, revision2, revision3, revision4 = sample_data.revisions[:4]

	# rev4 -is-child-of-> rev3 -> (rev1, rev2); rev2 -> rev1
	swh_storage.revision_add([revision1, revision2, revision3, revision4])

	results = list(swh_storage.revision_shortlog([revision4.id]))
	actual_results = [[id, tuple(parents)] for (id, parents) in results]

	assert len(actual_results) == 4
	assert actual_results == [
	[revision4.id, revision4.parents],
	[revision3.id, revision3.parents],
	[revision1.id, revision1.parents],
	[revision2.id, revision2.parents],
	]

	def test_revision_shortlog_with_limit(self, swh_storage, sample_data):
	revision1, revision2, revision3, revision4 = sample_data.revisions[:4]

	# revision4 -is-child-of-> revision3
	swh_storage.revision_add([revision1, revision2, revision3, revision4])
	results = list(swh_storage.revision_shortlog([revision4.id], 1))
	actual_results = [[id, tuple(parents)] for (id, parents) in results]

	assert len(actual_results) == 1
	assert list(actual_results[0]) == [revision4.id, revision4.parents]

	def test_revision_get(self, swh_storage, sample_data):
	revision, revision2 = sample_data.revisions[:2]

	swh_storage.revision_add([revision])

	actual_revisions = swh_storage.revision_get([revision.id, revision2.id])

	assert len(actual_revisions) == 2
	assert actual_revisions == [revision, None]

	def test_revision_get_no_parents(self, swh_storage, sample_data):
	revision = sample_data.revision
	swh_storage.revision_add([revision])

	actual_revision = swh_storage.revision_get([revision.id])[0]

	assert revision.parents == ()
	assert actual_revision.parents == () # no parents on this one

	def test_revision_get_random(self, swh_storage, sample_data):
	revision1, revision2, revision3 = sample_data.revisions[:3]

	swh_storage.revision_add([revision1, revision2, revision3])

	assert swh_storage.revision_get_random() in {
	revision1.id,
	revision2.id,
	revision3.id,
	}

	def test_release_add(self, swh_storage, sample_data):
	release, release2 = sample_data.releases[:2]

	init_missing = swh_storage.release_missing([release.id, release2.id])
	assert list(init_missing) == [release.id, release2.id]

	actual_result = swh_storage.release_add([release, release2])
	assert actual_result == {"release:add": 2}

	end_missing = swh_storage.release_missing([release.id, release2.id])
	assert list(end_missing) == []

	assert list(swh_storage.journal_writer.journal.objects) == [
	("release", release),
	("release", release2),
	]

	# already present so nothing added
	actual_result = swh_storage.release_add([release, release2])
	assert actual_result == {"release:add": 0}

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["release"] == 2

	def test_release_add_no_author_date(self, swh_storage, sample_data):
	full_release = sample_data.release

	release = attr.evolve(full_release, author=None, date=None)
	actual_result = swh_storage.release_add([release])
	assert actual_result == {"release:add": 1}

	end_missing = swh_storage.release_missing([release.id])
	assert list(end_missing) == []

	assert list(swh_storage.journal_writer.journal.objects) == [
	("release", release)
	]

	def test_release_add_twice(self, swh_storage, sample_data):
	release, release2 = sample_data.releases[:2]

	actual_result = swh_storage.release_add([release])
	assert actual_result == {"release:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("release", release)
	]

	actual_result = swh_storage.release_add([release, release2, release, release2])
	assert actual_result == {"release:add": 1}

	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("release", release), ("release", release2),]
	)

	def test_release_add_name_clash(self, swh_storage, sample_data):
	release, release2 = [
	attr.evolve(
	c,
	author=Person(
	fullname=b"John Doe <john.doe@example.com>",
	name=b"John Doe",
	email=b"john.doe@example.com",
	),
	)
	for c in sample_data.releases[:2]
	]

	actual_result = swh_storage.release_add([release, release2])
	assert actual_result == {"release:add": 2}

	def test_release_get(self, swh_storage, sample_data):
	release, release2, release3 = sample_data.releases[:3]

	# given
	swh_storage.release_add([release, release2])

	# when
	actual_releases = swh_storage.release_get([release.id, release2.id])

	# then
	assert actual_releases == [release, release2]

	unknown_releases = swh_storage.release_get([release3.id])
	assert unknown_releases[0] is None

	def test_release_get_order(self, swh_storage, sample_data):
	release, release2 = sample_data.releases[:2]

	add_result = swh_storage.release_add([release, release2])
	assert add_result == {"release:add": 2}

	# order 1
	actual_releases = swh_storage.release_get([release.id, release2.id])
	assert actual_releases == [release, release2]

	# order 2
	actual_releases2 = swh_storage.release_get([release2.id, release.id])
	assert actual_releases2 == [release2, release]

	def test_release_get_random(self, swh_storage, sample_data):
	release, release2, release3 = sample_data.releases[:3]

	swh_storage.release_add([release, release2, release3])

	assert swh_storage.release_get_random() in {
	release.id,
	release2.id,
	release3.id,
	}

	def test_origin_add(self, swh_storage, sample_data):
	origins = list(sample_data.origins[:2])
	origin_urls = [o.url for o in origins]

	assert swh_storage.origin_get(origin_urls) == [None, None]

	stats = swh_storage.origin_add(origins)
	assert stats == {"origin:add": 2}

	actual_origins = swh_storage.origin_get(origin_urls)
	assert actual_origins == origins

	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("origin", origins[0]), ("origin", origins[1]),]
	)

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["origin"] == 2

	def test_origin_add_twice(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	add1 = swh_storage.origin_add([origin, origin2])
	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("origin", origin), ("origin", origin2),]
	)
	assert add1 == {"origin:add": 2}

	add2 = swh_storage.origin_add([origin, origin2])
	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("origin", origin), ("origin", origin2),]
	)
	assert add2 == {"origin:add": 0}

	def test_origin_add_twice_at_once(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	add1 = swh_storage.origin_add([origin, origin2, origin, origin2])
	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("origin", origin), ("origin", origin2),]
	)
	assert add1 == {"origin:add": 2}

	add2 = swh_storage.origin_add([origin, origin2, origin, origin2])
	assert set(swh_storage.journal_writer.journal.objects) == set(
	[("origin", origin), ("origin", origin2),]
	)
	assert add2 == {"origin:add": 0}

	def test_origin_get(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	assert swh_storage.origin_get([origin.url]) == [None]
	swh_storage.origin_add([origin])

	actual_origins = swh_storage.origin_get([origin.url])
	assert actual_origins == [origin]

	actual_origins = swh_storage.origin_get([origin.url, "not://exists"])
	assert actual_origins == [origin, None]

	def _generate_random_visits(self, nb_visits=100, start=0, end=7):
	"""Generate random visits within the last 2 months (to avoid
	computations)

	"""
	visits = []
	today = now()
	for weeks in range(nb_visits, 0, -1):
	hours = random.randint(0, 24)
	minutes = random.randint(0, 60)
	seconds = random.randint(0, 60)
	days = random.randint(0, 28)
	weeks = random.randint(start, end)
	date_visit = today - timedelta(
	weeks=weeks, hours=hours, minutes=minutes, seconds=seconds, days=days
	)
	visits.append(date_visit)
	return visits

	def test_origin_visit_get__unknown_origin(self, swh_storage):
	actual_page = swh_storage.origin_visit_get("foo")
	assert actual_page.next_page_token is None
	assert actual_page.results == []
	assert actual_page == PagedResult()

	def test_origin_visit_get__validation_failure(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	with pytest.raises(
	StorageArgumentException, match="page_token must be a string"
	):
	swh_storage.origin_visit_get(origin.url, page_token=10) # not bytes

	with pytest.raises(
	StorageArgumentException, match="order must be a ListOrder value"
	):
	swh_storage.origin_visit_get(origin.url, order="foobar") # wrong order

	def test_origin_visit_get_all(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	ov1, ov2, ov3 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	),
	OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	),
	OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	),
	]
	)

	# order asc, no token, no limit
	actual_page = swh_storage.origin_visit_get(origin.url)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov1, ov2, ov3]

	# order asc, no token, limit
	actual_page = swh_storage.origin_visit_get(origin.url, limit=2)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov1, ov2]

	# order asc, token, no limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov3]

	# order asc, no token, limit
	actual_page = swh_storage.origin_visit_get(origin.url, limit=1)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov1]

	# order asc, token, no limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov2, ov3]

	# order asc, token, limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, limit=2
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov2, ov3]

	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, limit=1
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov2]

	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, limit=1
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov3]

	# order desc, no token, no limit
	actual_page = swh_storage.origin_visit_get(origin.url, order=ListOrder.DESC)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov3, ov2, ov1]

	# order desc, no token, limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, limit=2, order=ListOrder.DESC
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov3, ov2]

	# order desc, token, no limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov1]

	# order desc, no token, limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, limit=1, order=ListOrder.DESC
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov3]

	# order desc, token, no limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov2, ov1]

	# order desc, token, limit
	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, order=ListOrder.DESC, limit=1
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ov2]

	actual_page = swh_storage.origin_visit_get(
	origin.url, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ov1]

	def test_origin_visit_status_get__unknown_cases(self, swh_storage, sample_data):
	origin = sample_data.origin
	actual_page = swh_storage.origin_visit_status_get("foobar", 1)
	assert actual_page.next_page_token is None
	assert actual_page.results == []

	actual_page = swh_storage.origin_visit_status_get(origin.url, 1)
	assert actual_page.next_page_token is None
	assert actual_page.results == []

	origin = sample_data.origin
	swh_storage.origin_add([origin])
	ov1 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	),
	]
	)[0]
	actual_page = swh_storage.origin_visit_status_get(origin.url, ov1.visit + 10)
	assert actual_page.next_page_token is None
	assert actual_page.results == []

	def test_origin_visit_status_get_all(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	date_visit3 = round_to_milliseconds(now())
	date_visit1 = date_visit3 - datetime.timedelta(hours=2)
	date_visit2 = date_visit3 - datetime.timedelta(hours=1)
	assert date_visit1 < date_visit2 < date_visit3

	ov1 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin.url, date=date_visit1, type=sample_data.type_visit1,
	),
	]
	)[0]

	ovs1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit1,
	type=ov1.type,
	status="created",
	snapshot=None,
	)

	ovs2 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit2,
	type=ov1.type,
	status="partial",
	snapshot=None,
	)

	ovs3 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit3,
	type=ov1.type,
	status="full",
	snapshot=sample_data.snapshot.id,
	metadata={},
	)

	swh_storage.origin_visit_status_add([ovs2, ovs3])

	# order asc, no token, no limit
	actual_page = swh_storage.origin_visit_status_get(origin.url, ov1.visit)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs1, ovs2, ovs3]

	# order asc, no token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, limit=2
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs1, ovs2]

	# order asc, token, no limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs3]

	# order asc, no token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, limit=1
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs1]

	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs2, ovs3]

	# order asc, token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token, limit=2
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs2, ovs3]

	# order asc, no token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, limit=2
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs1, ovs2]

	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token, limit=1
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs3]

	# order desc, no token, no limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs3, ovs2, ovs1]

	# order desc, no token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, limit=2, order=ListOrder.DESC
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs3, ovs2]

	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs1]

	# order desc, no token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, order=ListOrder.DESC, limit=1
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs3]

	# order desc, token, no limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs2, ovs1]

	# order desc, token, limit
	actual_page = swh_storage.origin_visit_status_get(
	origin.url,
	ov1.visit,
	page_token=next_page_token,
	order=ListOrder.DESC,
	limit=1,
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [ovs2]

	actual_page = swh_storage.origin_visit_status_get(
	origin.url, ov1.visit, page_token=next_page_token, order=ListOrder.DESC
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [ovs1]

	def test_origin_visit_status_get_random(self, swh_storage, sample_data):
	origins = sample_data.origins[:2]
	swh_storage.origin_add(origins)

	# Add some random visits within the selection range
	visits = self._generate_random_visits()
	visit_type = "git"

	# Add visits to those origins
	for origin in origins:
	for date_visit in visits:
	visit = swh_storage.origin_visit_add(
	[OriginVisit(origin=origin.url, date=date_visit, type=visit_type,)]
	)[0]
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=visit.visit,
	date=now(),
	status="full",
	snapshot=None,
	)
	]
	)

	swh_storage.refresh_stat_counters()

	stats = swh_storage.stat_counters()
	assert stats["origin"] == len(origins)
	assert stats["origin_visit"] == len(origins) * len(visits)

	random_ovs = swh_storage.origin_visit_status_get_random(visit_type)
	assert random_ovs
	assert random_ovs.origin is not None
	assert random_ovs.origin in [o.url for o in origins]
	assert random_ovs.type is not None

	def test_origin_visit_status_get_random_nothing_found(
	self, swh_storage, sample_data
	):
	origins = sample_data.origins
	swh_storage.origin_add(origins)
	visit_type = "hg"
	# Add some visits outside of the random generation selection so nothing
	# will be found by the random selection
	visits = self._generate_random_visits(nb_visits=3, start=13, end=24)
	for origin in origins:
	for date_visit in visits:
	visit = swh_storage.origin_visit_add(
	[OriginVisit(origin=origin.url, date=date_visit, type=visit_type,)]
	)[0]
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=visit.visit,
	date=now(),
	status="full",
	snapshot=None,
	)
	]
	)

	random_origin_visit = swh_storage.origin_visit_status_get_random(visit_type)
	assert random_origin_visit is None

	def test_origin_get_by_sha1(self, swh_storage, sample_data):
	origin = sample_data.origin
	assert swh_storage.origin_get([origin.url])[0] is None
	swh_storage.origin_add([origin])

	origins = list(swh_storage.origin_get_by_sha1([sha1(origin.url)]))
	assert len(origins) == 1
	assert origins[0]["url"] == origin.url

	def test_origin_get_by_sha1_not_found(self, swh_storage, sample_data):
	unknown_origin = sample_data.origin
	assert swh_storage.origin_get([unknown_origin.url])[0] is None
	origins = list(swh_storage.origin_get_by_sha1([sha1(unknown_origin.url)]))
	assert len(origins) == 1
	assert origins[0] is None

	def test_origin_search_single_result(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	actual_page = swh_storage.origin_search(origin.url)
	assert actual_page.next_page_token is None
	assert actual_page.results == []

	actual_page = swh_storage.origin_search(origin.url, regexp=True)
	assert actual_page.next_page_token is None
	assert actual_page.results == []

	swh_storage.origin_add([origin])
	actual_page = swh_storage.origin_search(origin.url)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin]

	actual_page = swh_storage.origin_search(f".{origin.url[1:-1]}.", regexp=True)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin]

	swh_storage.origin_add([origin2])
	actual_page = swh_storage.origin_search(origin2.url)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin2]

	actual_page = swh_storage.origin_search(f".{origin2.url[1:-1]}.", regexp=True)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin2]

	def test_origin_search_no_regexp(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]
	swh_storage.origin_add([origin, origin2])

	# no pagination
	actual_page = swh_storage.origin_search("/")
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin, origin2]

	# offset=0
	actual_page = swh_storage.origin_search("/", page_token=None, limit=1)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [origin]

	# offset=1
	actual_page = swh_storage.origin_search(
	"/", page_token=next_page_token, limit=1
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin2]

	def test_origin_search_regexp_substring(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	swh_storage.origin_add([origin, origin2])

	# no pagination
	actual_page = swh_storage.origin_search("/", regexp=True)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin, origin2]

	# offset=0
	actual_page = swh_storage.origin_search(
	"/", page_token=None, limit=1, regexp=True
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [origin]

	# offset=1
	actual_page = swh_storage.origin_search(
	"/", page_token=next_page_token, limit=1, regexp=True
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin2]

	def test_origin_search_regexp_fullstring(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]

	swh_storage.origin_add([origin, origin2])

	# no pagination
	actual_page = swh_storage.origin_search("./.", regexp=True)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin, origin2]

	# offset=0
	actual_page = swh_storage.origin_search(
	"./.", page_token=None, limit=1, regexp=True
	)
	next_page_token = actual_page.next_page_token
	assert next_page_token is not None
	assert actual_page.results == [origin]

	# offset=1
	actual_page = swh_storage.origin_search(
	"./.", page_token=next_page_token, limit=1, regexp=True
	)
	assert actual_page.next_page_token is None
	assert actual_page.results == [origin2]

	def test_origin_visit_add(self, swh_storage, sample_data):
	origin1 = sample_data.origins[1]
	swh_storage.origin_add([origin1])

	date_visit = now()
	date_visit2 = date_visit + datetime.timedelta(minutes=1)

	date_visit = round_to_milliseconds(date_visit)
	date_visit2 = round_to_milliseconds(date_visit2)

	visit1 = OriginVisit(
	origin=origin1.url, date=date_visit, type=sample_data.type_visit1,
	)
	visit2 = OriginVisit(
	origin=origin1.url, date=date_visit2, type=sample_data.type_visit2,
	)

	# add once
	ov1, ov2 = swh_storage.origin_visit_add([visit1, visit2])
	# then again (will be ignored as they already exist)
	origin_visit1, origin_visit2 = swh_storage.origin_visit_add([ov1, ov2])
	assert ov1 == origin_visit1
	assert ov2 == origin_visit2

	ovs1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit,
	type=ov1.type,
	status="created",
	snapshot=None,
	)
	ovs2 = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=date_visit2,
	type=ov2.type,
	status="created",
	snapshot=None,
	)

	actual_visits = swh_storage.origin_visit_get(origin1.url).results
	expected_visits = [ov1, ov2]
	assert len(expected_visits) == len(actual_visits)
	for visit in expected_visits:
	assert visit in actual_visits

	actual_objects = list(swh_storage.journal_writer.journal.objects)
	expected_objects = list(
	[("origin", origin1)]
	+ [("origin_visit", visit) for visit in expected_visits] * 2
	+ [("origin_visit_status", ovs) for ovs in [ovs1, ovs2]]
	)

	for obj in expected_objects:
	assert obj in actual_objects

	def test_origin_visit_add_validation(self, swh_storage, sample_data):
	"""Unknown origin when adding visits should raise"""
	visit = attr.evolve(sample_data.origin_visit, origin="something-unknonw")
	with pytest.raises(StorageArgumentException, match="Unknown origin"):
	swh_storage.origin_visit_add([visit])

	objects = list(swh_storage.journal_writer.journal.objects)
	assert not objects

	def test_origin_visit_status_add_validation(self, swh_storage):
	"""Wrong origin_visit_status input should raise storage argument error"""
	date_visit = now()
	visit_status1 = OriginVisitStatus(
	origin="unknown-origin-url",
	visit=10,
	date=date_visit,
	status="full",
	snapshot=None,
	)
	with pytest.raises(StorageArgumentException, match="Unknown origin"):
	swh_storage.origin_visit_status_add([visit_status1])

	objects = list(swh_storage.journal_writer.journal.objects)
	assert not objects

	def test_origin_visit_status_add(self, swh_storage, sample_data):
	"""Correct origin visit statuses should add a new visit status

	"""
	snapshot = sample_data.snapshot
	origin1 = sample_data.origins[1]
	origin2 = Origin(url="new-origin")
	swh_storage.origin_add([origin1, origin2])

	ov1, ov2 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin1.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	),
	OriginVisit(
	origin=origin2.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	),
	]
	)

	ovs1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=sample_data.date_visit1,
	type=ov1.type,
	status="created",
	snapshot=None,
	)
	ovs2 = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=sample_data.date_visit2,
	type=ov2.type,
	status="created",
	snapshot=None,
	)

	date_visit_now = round_to_milliseconds(now())
	visit_status1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit_now,
	type=ov1.type,
	status="full",
	snapshot=snapshot.id,
	)

	date_visit_now = round_to_milliseconds(now())
	visit_status2 = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=date_visit_now,
	type=ov2.type,
	status="ongoing",
	snapshot=None,
	metadata={"intrinsic": "something"},
	)
	swh_storage.origin_visit_status_add([visit_status1, visit_status2])

	visit = swh_storage.origin_visit_get_latest(origin1.url, require_snapshot=True)
	visit_status = swh_storage.origin_visit_status_get_latest(
	origin1.url, visit.visit, require_snapshot=True
	)
	assert visit_status == visit_status1

	visit = swh_storage.origin_visit_get_latest(origin2.url, require_snapshot=False)
	visit_status = swh_storage.origin_visit_status_get_latest(
	origin2.url, visit.visit, require_snapshot=False
	)
	assert origin2.url != origin1.url
	assert visit_status == visit_status2

	actual_objects = list(swh_storage.journal_writer.journal.objects)

	expected_origins = [origin1, origin2]
	expected_visits = [ov1, ov2]
	expected_visit_statuses = [ovs1, ovs2, visit_status1, visit_status2]

	expected_objects = (
	[("origin", o) for o in expected_origins]
	+ [("origin_visit", v) for v in expected_visits]
	+ [("origin_visit_status", ovs) for ovs in expected_visit_statuses]
	)

	for obj in expected_objects:
	assert obj in actual_objects

	def test_origin_visit_status_add_twice(self, swh_storage, sample_data):
	"""Correct origin visit statuses should add a new visit status

	"""
	snapshot = sample_data.snapshot
	origin1 = sample_data.origins[1]
	swh_storage.origin_add([origin1])
	ov1 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin1.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	),
	]
	)[0]

	ovs1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=sample_data.date_visit1,
	type=ov1.type,
	status="created",
	snapshot=None,
	)
	date_visit_now = round_to_milliseconds(now())
	visit_status1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_visit_now,
	type=ov1.type,
	status="full",
	snapshot=snapshot.id,
	)

	swh_storage.origin_visit_status_add([visit_status1])
	# second call will ignore existing entries (will send to storage though)
	swh_storage.origin_visit_status_add([visit_status1])

	visit_status = swh_storage.origin_visit_status_get_latest(ov1.origin, ov1.visit)
	assert visit_status == visit_status1

	actual_objects = list(swh_storage.journal_writer.journal.objects)

	expected_origins = [origin1]
	expected_visits = [ov1]
	expected_visit_statuses = [ovs1, visit_status1, visit_status1]

	# write twice in the journal
	expected_objects = (
	[("origin", o) for o in expected_origins]
	+ [("origin_visit", v) for v in expected_visits]
	+ [("origin_visit_status", ovs) for ovs in expected_visit_statuses]
	)

	for obj in expected_objects:
	assert obj in actual_objects

	def test_origin_visit_find_by_date(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	visit1 = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit1,
	)
	visit2 = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit3,
	type=sample_data.type_visit2,
	)
	visit3 = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit3,
	)
	ov1, ov2, ov3 = swh_storage.origin_visit_add([visit1, visit2, visit3])

	ovs1 = OriginVisitStatus(
	origin=origin.url,
	visit=ov1.visit,
	date=sample_data.date_visit2,
	status="ongoing",
	snapshot=None,
	)
	ovs2 = OriginVisitStatus(
	origin=origin.url,
	visit=ov2.visit,
	date=sample_data.date_visit3,
	status="ongoing",
	snapshot=None,
	)
	ovs3 = OriginVisitStatus(
	origin=origin.url,
	visit=ov3.visit,
	date=sample_data.date_visit2,
	status="ongoing",
	snapshot=None,
	)
	swh_storage.origin_visit_status_add([ovs1, ovs2, ovs3])

	# Simple case
	actual_visit = swh_storage.origin_visit_find_by_date(
	origin.url, sample_data.date_visit3
	)
	assert actual_visit == ov2

	# There are two visits at the same date, the latest must be returned
	actual_visit = swh_storage.origin_visit_find_by_date(
	origin.url, sample_data.date_visit2
	)
	assert actual_visit == ov3

	def test_origin_visit_find_by_date__unknown_origin(self, swh_storage, sample_data):
	actual_visit = swh_storage.origin_visit_find_by_date(
	"foo", sample_data.date_visit2
	)
	assert actual_visit is None

	def test_origin_visit_get_by(self, swh_storage, sample_data):
	snapshot = sample_data.snapshot
	origins = sample_data.origins[:2]
	swh_storage.origin_add(origins)
	origin_url, origin_url2 = [o.url for o in origins]

	visit = OriginVisit(
	origin=origin_url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	)
	origin_visit1 = swh_storage.origin_visit_add([visit])[0]

	swh_storage.snapshot_add([snapshot])
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin_url,
	visit=origin_visit1.visit,
	date=now(),
	status="ongoing",
	snapshot=snapshot.id,
	)
	]
	)

	# Add some other {origin, visit} entries
	visit2 = OriginVisit(
	origin=origin_url,
	date=sample_data.date_visit3,
	type=sample_data.type_visit3,
	)
	visit3 = OriginVisit(
	origin=origin_url2,
	date=sample_data.date_visit3,
	type=sample_data.type_visit3,
	)
	swh_storage.origin_visit_add([visit2, visit3])

	# when
	visit1_metadata = {
	"contents": 42,
	"directories": 22,
	}

	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin_url,
	visit=origin_visit1.visit,
	date=now(),
	status="full",
	snapshot=snapshot.id,
	metadata=visit1_metadata,
	)
	]
	)

	actual_visit = swh_storage.origin_visit_get_by(origin_url, origin_visit1.visit)
	assert actual_visit == origin_visit1

	def test_origin_visit_get_by__no_result(self, swh_storage, sample_data):
	actual_visit = swh_storage.origin_visit_get_by("unknown", 10) # unknown origin
	assert actual_visit is None

	origin = sample_data.origin
	swh_storage.origin_add([origin])
	actual_visit = swh_storage.origin_visit_get_by(origin.url, 999) # unknown visit
	assert actual_visit is None

	def test_origin_visit_get_latest_edge_cases(self, swh_storage, sample_data):
	# unknown origin so no result
	assert swh_storage.origin_visit_get_latest("unknown-origin") is None

	# unknown type so no result
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	assert swh_storage.origin_visit_get_latest(origin.url, type="unknown") is None

	# unknown allowed statuses should raise
	with pytest.raises(StorageArgumentException, match="Unknown allowed statuses"):
	swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["unknown"]
	)

	def test_origin_visit_get_latest_filter_type(self, swh_storage, sample_data):
	"""Filtering origin visit get latest with filter type should be ok

	"""
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	visit1 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit1, type="git",
	)
	visit2 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit2, type="hg",
	)
	date_now = round_to_milliseconds(now())
	visit3 = OriginVisit(origin=origin.url, date=date_now, type="hg",)
	assert sample_data.date_visit1 < sample_data.date_visit2
	assert sample_data.date_visit2 < date_now

	ov1, ov2, ov3 = swh_storage.origin_visit_add([visit1, visit2, visit3])

	# Check type filter is ok
	actual_visit = swh_storage.origin_visit_get_latest(origin.url, type="git")
	assert actual_visit == ov1
	actual_visit = swh_storage.origin_visit_get_latest(origin.url, type="hg")
	assert actual_visit == ov3
	actual_visit_unknown_type = swh_storage.origin_visit_get_latest(
	origin.url, type="npm", # no visit matching that type
	)
	assert actual_visit_unknown_type is None

	def test_origin_visit_get_latest(self, swh_storage, sample_data):
	empty_snapshot, complete_snapshot = sample_data.snapshots[1:3]
	origin = sample_data.origin

	swh_storage.origin_add([origin])
	visit1 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit1, type="git",
	)
	visit2 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit2, type="hg",
	)
	date_now = round_to_milliseconds(now())
	visit3 = OriginVisit(origin=origin.url, date=date_now, type="hg",)
	assert visit1.date < visit2.date
	assert visit2.date < visit3.date

	ov1, ov2, ov3 = swh_storage.origin_visit_add([visit1, visit2, visit3])

	# no filters, latest visit is the last one (whose date is most recent)
	actual_visit = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_visit == ov3

	# 3 visits, none has snapshot so nothing is returned
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, require_snapshot=True
	)
	assert actual_visit is None

	# visit are created with "created" status, so nothing will get returned
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["partial"]
	)
	assert actual_visit is None

	# visit are created with "created" status, so most recent again
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["created"]
	)
	assert actual_visit == ov3

	# Add snapshot to visit1; require_snapshot=True makes it return first visit
	swh_storage.snapshot_add([complete_snapshot])
	visit_status_with_snapshot = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=round_to_milliseconds(now()),
	type=ov1.type,
	status="ongoing",
	snapshot=complete_snapshot.id,
	)
	swh_storage.origin_visit_status_add([visit_status_with_snapshot])
	# only the first visit has a snapshot now
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, require_snapshot=True
	)
	assert actual_visit == ov1

	# only the first visit has a status ongoing now
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["ongoing"]
	)
	assert actual_visit == ov1

	actual_visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url, ov1.visit, require_snapshot=True
	)
	assert actual_visit_status == visit_status_with_snapshot

	# ... and require_snapshot=False (defaults) still returns latest visit (3rd)
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, require_snapshot=False
	)
	assert actual_visit == ov3
	# no specific filter, this returns as before the latest visit
	actual_visit = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_visit == ov3

	# Status filter: all three visits are status=ongoing, so no visit
	# returned
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["full"]
	)
	assert actual_visit is None

	visit_status1_full = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=round_to_milliseconds(now()),
	type=ov1.type,
	status="full",
	snapshot=complete_snapshot.id,
	)
	# Mark the first visit as completed and check status filter again
	swh_storage.origin_visit_status_add([visit_status1_full])

	# only the first visit has the full status
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["full"]
	)
	assert actual_visit == ov1

	actual_visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url, ov1.visit, allowed_statuses=["full"]
	)
	assert actual_visit_status == visit_status1_full

	# no specific filter, this returns as before the latest visit
	actual_visit = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_visit == ov3

	# Add snapshot to visit2 and check that the new snapshot is returned
	swh_storage.snapshot_add([empty_snapshot])

	visit_status2_full = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=round_to_milliseconds(now()),
	type=ov2.type,
	status="ongoing",
	snapshot=empty_snapshot.id,
	)
	swh_storage.origin_visit_status_add([visit_status2_full])
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, require_snapshot=True
	)
	# 2nd visit is most recent with a snapshot
	assert actual_visit == ov2
	actual_visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url, ov2.visit, require_snapshot=True
	)
	assert actual_visit_status == visit_status2_full

	# no specific filter, this returns as before the latest visit, 3rd one
	actual_origin = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_origin == ov3

	# full status is still the first visit
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["full"]
	)
	assert actual_visit == ov1

	# Add snapshot to visit3 (same date as visit2)
	visit_status3_with_snapshot = OriginVisitStatus(
	origin=ov3.origin,
	visit=ov3.visit,
	date=round_to_milliseconds(now()),
	type=ov3.type,
	status="ongoing",
	snapshot=complete_snapshot.id,
	)
	swh_storage.origin_visit_status_add([visit_status3_with_snapshot])

	# full status is still the first visit
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["full"], require_snapshot=True,
	)
	assert actual_visit == ov1

	actual_visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url,
	visit=actual_visit.visit,
	allowed_statuses=["full"],
	require_snapshot=True,
	)
	assert actual_visit_status == visit_status1_full

	# most recent is still the 3rd visit
	actual_visit = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_visit == ov3

	# 3rd visit has a snapshot now, so it's elected
	actual_visit = swh_storage.origin_visit_get_latest(
	origin.url, require_snapshot=True
	)
	assert actual_visit == ov3

	actual_visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url, ov3.visit, require_snapshot=True
	)
	assert actual_visit_status == visit_status3_with_snapshot

	def test_origin_visit_get_latest__same_date(self, swh_storage, sample_data):
	empty_snapshot, complete_snapshot = sample_data.snapshots[1:3]
	origin = sample_data.origin

	swh_storage.origin_add([origin])
	visit1 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit1, type="git",
	)
	visit2 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit1, type="hg",
	)

	ov1, ov2 = swh_storage.origin_visit_add([visit1, visit2])

	# ties should be broken by using the visit id
	actual_visit = swh_storage.origin_visit_get_latest(origin.url)
	assert actual_visit == ov2

	def test_origin_visit_get_latest__not_last(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])

	visit1, visit2 = sample_data.origin_visits[:2]
	assert visit1.origin == origin.url

	swh_storage.origin_visit_add([visit1])
	ov1 = swh_storage.origin_visit_get_latest(origin.url)

	# Add snapshot to visit1, latest snapshot = visit 1 snapshot
	complete_snapshot = sample_data.snapshots[2]
	swh_storage.snapshot_add([complete_snapshot])

	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=ov1.visit,
	date=visit2.date,
	status="partial",
	snapshot=None,
	)
	]
	)
	assert visit1.date < visit2.date

	# no snapshot associated to the visit, so None
	visit = swh_storage.origin_visit_get_latest(
	origin.url, allowed_statuses=["partial"], require_snapshot=True,
	)
	assert visit is None

	date_now = now()
	assert visit2.date < date_now
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=ov1.visit,
	date=date_now,
	status="full",
	snapshot=complete_snapshot.id,
	)
	]
	)

	swh_storage.origin_visit_add(
	[OriginVisit(origin=origin.url, date=now(), type=visit1.type,)]
	)

	visit = swh_storage.origin_visit_get_latest(origin.url, require_snapshot=True)
	assert visit is not None

	def test_origin_visit_status_get_latest__validation(self, swh_storage, sample_data):
	origin = sample_data.origin
	swh_storage.origin_add([origin])
	visit1 = OriginVisit(
	origin=origin.url, date=sample_data.date_visit1, type="git",
	)

	# unknown allowed statuses should raise
	with pytest.raises(StorageArgumentException, match="Unknown allowed statuses"):
	swh_storage.origin_visit_status_get_latest(
	origin.url, visit1.visit, allowed_statuses=["unknown"]
	)

	def test_origin_visit_status_get_latest(self, swh_storage, sample_data):
	snapshot = sample_data.snapshots[2]
	origin1 = sample_data.origin
	swh_storage.origin_add([origin1])

	# to have some reference visits

	ov1, ov2 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin1.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	),
	OriginVisit(
	origin=origin1.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	),
	]
	)
	swh_storage.snapshot_add([snapshot])

	date_now = round_to_milliseconds(now())
	assert sample_data.date_visit1 < sample_data.date_visit2
	assert sample_data.date_visit2 < date_now

	ovs1 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=sample_data.date_visit1,
	type=ov1.type,
	status="partial",
	snapshot=None,
	)
	ovs2 = OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=sample_data.date_visit2,
	type=ov1.type,
	status="ongoing",
	snapshot=None,
	)
	ovs3 = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=sample_data.date_visit2
	+ datetime.timedelta(minutes=1), # to not be ignored
	type=ov2.type,
	status="ongoing",
	snapshot=None,
	)
	ovs4 = OriginVisitStatus(
	origin=ov2.origin,
	visit=ov2.visit,
	date=date_now,
	type=ov2.type,
	status="full",
	snapshot=snapshot.id,
	metadata={"something": "wicked"},
	)

	swh_storage.origin_visit_status_add([ovs1, ovs2, ovs3, ovs4])

	# unknown origin so no result
	actual_origin_visit = swh_storage.origin_visit_status_get_latest(
	"unknown-origin", ov1.visit
	)
	assert actual_origin_visit is None

	# unknown visit so no result
	actual_origin_visit = swh_storage.origin_visit_status_get_latest(
	ov1.origin, ov1.visit + 10
	)
	assert actual_origin_visit is None

	# Two visits, both with no snapshot, take the most recent
	actual_origin_visit2 = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov1.visit
	)
	assert isinstance(actual_origin_visit2, OriginVisitStatus)
	assert actual_origin_visit2 == ovs2
	assert ovs2.origin == origin1.url
	assert ovs2.visit == ov1.visit

	actual_origin_visit = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov1.visit, require_snapshot=True
	)
	# there is no visit with snapshot yet for that visit
	assert actual_origin_visit is None

	actual_origin_visit2 = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov1.visit, allowed_statuses=["partial", "ongoing"]
	)
	# visit status with partial status visit elected
	assert actual_origin_visit2 == ovs2
	assert actual_origin_visit2.status == "ongoing"

	actual_origin_visit4 = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov2.visit, require_snapshot=True
	)
	assert actual_origin_visit4 == ovs4
	assert actual_origin_visit4.snapshot == snapshot.id

	actual_origin_visit = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov2.visit, require_snapshot=True, allowed_statuses=["ongoing"]
	)
	# nothing matches so nothing
	assert actual_origin_visit is None # there is no visit with status full

	actual_origin_visit3 = swh_storage.origin_visit_status_get_latest(
	origin1.url, ov2.visit, allowed_statuses=["ongoing"]
	)
	assert actual_origin_visit3 == ovs3

	def test_person_fullname_unicity(self, swh_storage, sample_data):
	revision, rev2 = sample_data.revisions[0:2]
	# create a revision with same committer fullname but wo name and email
	revision2 = attr.evolve(
	rev2,
	committer=Person(
	fullname=revision.committer.fullname, name=None, email=None
	),
	)

	swh_storage.revision_add([revision, revision2])

	# when getting added revisions
	revisions = swh_storage.revision_get([revision.id, revision2.id])

	# then check committers are the same
	assert revisions[0].committer == revisions[1].committer

	def test_snapshot_add_get_empty(self, swh_storage, sample_data):
	empty_snapshot = sample_data.snapshots[1]
	empty_snapshot_dict = empty_snapshot.to_dict()

	origin = sample_data.origin
	swh_storage.origin_add([origin])
	ov1 = swh_storage.origin_visit_add(
	[
	OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	)
	]
	)[0]

	actual_result = swh_storage.snapshot_add([empty_snapshot])
	assert actual_result == {"snapshot:add": 1}

	date_now = now()

	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=ov1.origin,
	visit=ov1.visit,
	date=date_now,
	type=ov1.type,
	status="full",
	snapshot=empty_snapshot.id,
	)
	]
	)

	by_id = swh_storage.snapshot_get(empty_snapshot.id)
	assert by_id == {**empty_snapshot_dict, "next_branch": None}

	ovs1 = OriginVisitStatus.from_dict(
	{
	"origin": ov1.origin,
	"date": sample_data.date_visit1,
	"type": ov1.type,
	"visit": ov1.visit,
	"status": "created",
	"snapshot": None,
	"metadata": None,
	}
	)
	ovs2 = OriginVisitStatus.from_dict(
	{
	"origin": ov1.origin,
	"date": date_now,
	"type": ov1.type,
	"visit": ov1.visit,
	"status": "full",
	"metadata": None,
	"snapshot": empty_snapshot.id,
	}
	)
	actual_objects = list(swh_storage.journal_writer.journal.objects)

	expected_objects = [
	("origin", origin),
	("origin_visit", ov1),
	("origin_visit_status", ovs1,),
	("snapshot", empty_snapshot),
	("origin_visit_status", ovs2,),
	]
	for obj in expected_objects:
	assert obj in actual_objects

	def test_snapshot_add_get_complete(self, swh_storage, sample_data):
	complete_snapshot = sample_data.snapshots[2]
	complete_snapshot_dict = complete_snapshot.to_dict()
	origin = sample_data.origin

	swh_storage.origin_add([origin])
	visit = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	)
	origin_visit1 = swh_storage.origin_visit_add([visit])[0]

	actual_result = swh_storage.snapshot_add([complete_snapshot])
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=origin_visit1.visit,
	date=now(),
	status="ongoing",
	snapshot=complete_snapshot.id,
	)
	]
	)
	assert actual_result == {"snapshot:add": 1}

	by_id = swh_storage.snapshot_get(complete_snapshot.id)
	assert by_id == {**complete_snapshot_dict, "next_branch": None}

	def test_snapshot_add_many(self, swh_storage, sample_data):
	snapshot, _, complete_snapshot = sample_data.snapshots[:3]

	actual_result = swh_storage.snapshot_add([snapshot, complete_snapshot])
	assert actual_result == {"snapshot:add": 2}

	assert swh_storage.snapshot_get(complete_snapshot.id) == {
	**complete_snapshot.to_dict(),
	"next_branch": None,
	}

	assert swh_storage.snapshot_get(snapshot.id) == {
	**snapshot.to_dict(),
	"next_branch": None,
	}

	swh_storage.refresh_stat_counters()
	assert swh_storage.stat_counters()["snapshot"] == 2

	def test_snapshot_add_many_incremental(self, swh_storage, sample_data):
	snapshot, _, complete_snapshot = sample_data.snapshots[:3]

	actual_result = swh_storage.snapshot_add([complete_snapshot])
	assert actual_result == {"snapshot:add": 1}

	actual_result2 = swh_storage.snapshot_add([snapshot, complete_snapshot])
	assert actual_result2 == {"snapshot:add": 1}

	assert swh_storage.snapshot_get(complete_snapshot.id) == {
	**complete_snapshot.to_dict(),
	"next_branch": None,
	}

	assert swh_storage.snapshot_get(snapshot.id) == {
	**snapshot.to_dict(),
	"next_branch": None,
	}

	def test_snapshot_add_twice(self, swh_storage, sample_data):
	snapshot, empty_snapshot = sample_data.snapshots[:2]

	actual_result = swh_storage.snapshot_add([empty_snapshot])
	assert actual_result == {"snapshot:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("snapshot", empty_snapshot)
	]

	actual_result = swh_storage.snapshot_add([snapshot])
	assert actual_result == {"snapshot:add": 1}

	assert list(swh_storage.journal_writer.journal.objects) == [
	("snapshot", empty_snapshot),
	("snapshot", snapshot),
	]

	def test_snapshot_add_count_branches(self, swh_storage, sample_data):
	complete_snapshot = sample_data.snapshots[2]

	actual_result = swh_storage.snapshot_add([complete_snapshot])
	assert actual_result == {"snapshot:add": 1}

	snp_size = swh_storage.snapshot_count_branches(complete_snapshot.id)

	expected_snp_size = {
	"alias": 1,
	"content": 1,
	"directory": 2,
	"release": 1,
	"revision": 1,
	"snapshot": 1,
	None: 1,
	}
	assert snp_size == expected_snp_size

	def test_snapshot_add_get_paginated(self, swh_storage, sample_data):
	complete_snapshot = sample_data.snapshots[2]

	swh_storage.snapshot_add([complete_snapshot])

	snp_id = complete_snapshot.id
	branches = complete_snapshot.branches
	branch_names = list(sorted(branches))

	# Test branch_from
	snapshot = swh_storage.snapshot_get_branches(snp_id, branches_from=b"release")

	rel_idx = branch_names.index(b"release")
	expected_snapshot = {
	"id": snp_id,
	"branches": {name: branches[name] for name in branch_names[rel_idx:]},
	"next_branch": None,
	}

	assert snapshot == expected_snapshot

	# Test branches_count
	snapshot = swh_storage.snapshot_get_branches(snp_id, branches_count=1)

	expected_snapshot = {
	"id": snp_id,
	"branches": {branch_names[0]: branches[branch_names[0]],},
	"next_branch": b"content",
	}
	assert snapshot == expected_snapshot

	# test branch_from + branches_count

	snapshot = swh_storage.snapshot_get_branches(
	snp_id, branches_from=b"directory", branches_count=3
	)

	dir_idx = branch_names.index(b"directory")
	expected_snapshot = {
	"id": snp_id,
	"branches": {
	name: branches[name] for name in branch_names[dir_idx : dir_idx + 3]
	},
	"next_branch": branch_names[dir_idx + 3],
	}

	assert snapshot == expected_snapshot

	def test_snapshot_add_get_filtered(self, swh_storage, sample_data):
	origin = sample_data.origin
	complete_snapshot = sample_data.snapshots[2]

	swh_storage.origin_add([origin])
	visit = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	)
	origin_visit1 = swh_storage.origin_visit_add([visit])[0]

	swh_storage.snapshot_add([complete_snapshot])
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=origin_visit1.visit,
	date=now(),
	status="ongoing",
	snapshot=complete_snapshot.id,
	)
	]
	)

	snp_id = complete_snapshot.id
	branches = complete_snapshot.branches

	snapshot = swh_storage.snapshot_get_branches(
	snp_id, target_types=["release", "revision"]
	)

	expected_snapshot = {
	"id": snp_id,
	"branches": {
	name: tgt
	for name, tgt in branches.items()
	if tgt and tgt.target_type in [TargetType.RELEASE, TargetType.REVISION]
	},
	"next_branch": None,
	}

	assert snapshot == expected_snapshot

	snapshot = swh_storage.snapshot_get_branches(snp_id, target_types=["alias"])

	expected_snapshot = {
	"id": snp_id,
	"branches": {
	name: tgt
	for name, tgt in branches.items()
	if tgt and tgt.target_type == TargetType.ALIAS
	},
	"next_branch": None,
	}

	assert snapshot == expected_snapshot

	def test_snapshot_add_get_filtered_and_paginated(self, swh_storage, sample_data):
	complete_snapshot = sample_data.snapshots[2]

	swh_storage.snapshot_add([complete_snapshot])

	snp_id = complete_snapshot.id
	branches = complete_snapshot.branches
	branch_names = list(sorted(branches))

	# Test branch_from

	snapshot = swh_storage.snapshot_get_branches(
	snp_id, target_types=["directory", "release"], branches_from=b"directory2"
	)

	expected_snapshot = {
	"id": snp_id,
	"branches": {name: branches[name] for name in (b"directory2", b"release")},
	"next_branch": None,
	}

	assert snapshot == expected_snapshot

	# Test branches_count

	snapshot = swh_storage.snapshot_get_branches(
	snp_id, target_types=["directory", "release"], branches_count=1
	)

	expected_snapshot = {
	"id": snp_id,
	"branches": {b"directory": branches[b"directory"]},
	"next_branch": b"directory2",
	}
	assert snapshot == expected_snapshot

	# Test branches_count

	snapshot = swh_storage.snapshot_get_branches(
	snp_id, target_types=["directory", "release"], branches_count=2
	)

	expected_snapshot = {
	"id": snp_id,
	"branches": {
	name: branches[name] for name in (b"directory", b"directory2")
	},
	"next_branch": b"release",
	}
	assert snapshot == expected_snapshot

	# test branch_from + branches_count

	snapshot = swh_storage.snapshot_get_branches(
	snp_id,
	target_types=["directory", "release"],
	branches_from=b"directory2",
	branches_count=1,
	)

	dir_idx = branch_names.index(b"directory2")
	expected_snapshot = {
	"id": snp_id,
	"branches": {branch_names[dir_idx]: branches[branch_names[dir_idx]],},
	"next_branch": b"release",
	}

	assert snapshot == expected_snapshot

	def test_snapshot_add_get_branch_by_type(self, swh_storage, sample_data):
	complete_snapshot = sample_data.snapshots[2]
	snapshot = complete_snapshot.to_dict()

	alias1 = b"alias1"
	alias2 = b"alias2"
	target1 = random.choice(list(snapshot["branches"].keys()))
	target2 = random.choice(list(snapshot["branches"].keys()))

	snapshot["branches"][alias2] = {
	"target": target2,
	"target_type": "alias",
	}

	snapshot["branches"][alias1] = {
	"target": target1,
	"target_type": "alias",
	}

	new_snapshot = Snapshot.from_dict(snapshot)
	swh_storage.snapshot_add([new_snapshot])

	branches = swh_storage.snapshot_get_branches(
	new_snapshot.id,
	target_types=["alias"],
	branches_from=alias1,
	branches_count=1,
	)["branches"]

	assert len(branches) == 1
	assert alias1 in branches

	def test_snapshot_add_get(self, swh_storage, sample_data):
	snapshot = sample_data.snapshot
	origin = sample_data.origin

	swh_storage.origin_add([origin])
	visit = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit1,
	type=sample_data.type_visit1,
	)
	ov1 = swh_storage.origin_visit_add([visit])[0]

	swh_storage.snapshot_add([snapshot])
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=ov1.visit,
	date=now(),
	status="ongoing",
	snapshot=snapshot.id,
	)
	]
	)

	expected_snapshot = {**snapshot.to_dict(), "next_branch": None}

	by_id = swh_storage.snapshot_get(snapshot.id)
	assert by_id == expected_snapshot

	actual_visit = swh_storage.origin_visit_get_by(origin.url, ov1.visit)
	assert actual_visit == ov1

	visit_status = swh_storage.origin_visit_status_get_latest(
	origin.url, ov1.visit, require_snapshot=True
	)
	assert visit_status.snapshot == snapshot.id

	def test_snapshot_get_random(self, swh_storage, sample_data):
	snapshot, empty_snapshot, complete_snapshot = sample_data.snapshots[:3]
	swh_storage.snapshot_add([snapshot, empty_snapshot, complete_snapshot])

	assert swh_storage.snapshot_get_random() in {
	snapshot.id,
	empty_snapshot.id,
	complete_snapshot.id,
	}

	def test_snapshot_missing(self, swh_storage, sample_data):
	snapshot, missing_snapshot = sample_data.snapshots[:2]
	snapshots = [snapshot.id, missing_snapshot.id]
	swh_storage.snapshot_add([snapshot])

	missing_snapshots = swh_storage.snapshot_missing(snapshots)

	assert list(missing_snapshots) == [missing_snapshot.id]

	def test_stat_counters(self, swh_storage, sample_data):
	origin = sample_data.origin
	snapshot = sample_data.snapshot
	revision = sample_data.revision
	release = sample_data.release
	directory = sample_data.directory
	content = sample_data.content

	expected_keys = ["content", "directory", "origin", "revision"]

	# Initially, all counters are 0

	swh_storage.refresh_stat_counters()
	counters = swh_storage.stat_counters()
	assert set(expected_keys) <= set(counters)
	for key in expected_keys:
	assert counters[key] == 0

	# Add a content. Only the content counter should increase.

	swh_storage.content_add([content])

	swh_storage.refresh_stat_counters()
	counters = swh_storage.stat_counters()

	assert set(expected_keys) <= set(counters)
	for key in expected_keys:
	if key != "content":
	assert counters[key] == 0
	assert counters["content"] == 1

	# Add other objects. Check their counter increased as well.

	swh_storage.origin_add([origin])
	visit = OriginVisit(
	origin=origin.url,
	date=sample_data.date_visit2,
	type=sample_data.type_visit2,
	)
	origin_visit1 = swh_storage.origin_visit_add([visit])[0]

	swh_storage.snapshot_add([snapshot])
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin.url,
	visit=origin_visit1.visit,
	date=now(),
	status="ongoing",
	snapshot=snapshot.id,
	)
	]
	)
	swh_storage.directory_add([directory])
	swh_storage.revision_add([revision])
	swh_storage.release_add([release])

	swh_storage.refresh_stat_counters()
	counters = swh_storage.stat_counters()
	assert counters["content"] == 1
	assert counters["directory"] == 1
	assert counters["snapshot"] == 1
	assert counters["origin"] == 1
	assert counters["origin_visit"] == 1
	assert counters["revision"] == 1
	assert counters["release"] == 1
	assert counters["snapshot"] == 1
	if "person" in counters:
	assert counters["person"] == 3

	def test_content_find_ctime(self, swh_storage, sample_data):
	origin_content = sample_data.content
	ctime = round_to_milliseconds(now())
	content = attr.evolve(origin_content, data=None, ctime=ctime)
	swh_storage.content_add_metadata([content])

	actually_present = swh_storage.content_find({"sha1": content.sha1})
	assert actually_present[0] == content
	assert actually_present[0].ctime is not None
	assert actually_present[0].ctime.tzinfo is not None

	def test_content_find_with_present_content(self, swh_storage, sample_data):
	content = sample_data.content
	expected_content = attr.evolve(content, data=None)

	# 1. with something to find
	swh_storage.content_add([content])

	actually_present = swh_storage.content_find({"sha1": content.sha1})
	assert 1 == len(actually_present)
	assert actually_present[0] == expected_content

	# 2. with something to find
	actually_present = swh_storage.content_find({"sha1_git": content.sha1_git})
	assert 1 == len(actually_present)
	assert actually_present[0] == expected_content

	# 3. with something to find
	actually_present = swh_storage.content_find({"sha256": content.sha256})
	assert 1 == len(actually_present)
	assert actually_present[0] == expected_content

	# 4. with something to find
	actually_present = swh_storage.content_find(content.hashes())
	assert 1 == len(actually_present)
	assert actually_present[0] == expected_content

	def test_content_find_with_non_present_content(self, swh_storage, sample_data):
	missing_content = sample_data.skipped_content
	# 1. with something that does not exist
	actually_present = swh_storage.content_find({"sha1": missing_content.sha1})
	assert actually_present == []

	# 2. with something that does not exist
	actually_present = swh_storage.content_find(
	{"sha1_git": missing_content.sha1_git}
	)
	assert actually_present == []

	# 3. with something that does not exist
	actually_present = swh_storage.content_find({"sha256": missing_content.sha256})
	assert actually_present == []

	def test_content_find_with_duplicate_input(self, swh_storage, sample_data):
	content = sample_data.content

	# Create fake data with colliding sha256 and blake2s256
	sha1_array = bytearray(content.sha1)
	sha1_array[0] += 1
	sha1git_array = bytearray(content.sha1_git)
	sha1git_array[0] += 1
	duplicated_content = attr.evolve(
	content, sha1=bytes(sha1_array), sha1_git=bytes(sha1git_array)
	)

	# Inject the data
	swh_storage.content_add([content, duplicated_content])

	actual_result = swh_storage.content_find(
	{
	"blake2s256": duplicated_content.blake2s256,
	"sha256": duplicated_content.sha256,
	}
	)

	expected_content = attr.evolve(content, data=None)
	expected_duplicated_content = attr.evolve(duplicated_content, data=None)

	for result in actual_result:
	assert result in [expected_content, expected_duplicated_content]

	def test_content_find_with_duplicate_sha256(self, swh_storage, sample_data):
	content = sample_data.content

	hashes = {}
	# Create fake data with colliding sha256
	for hashalgo in ("sha1", "sha1_git", "blake2s256"):
	value = bytearray(getattr(content, hashalgo))
	value[0] += 1
	hashes[hashalgo] = bytes(value)

	duplicated_content = attr.evolve(
	content,
	sha1=hashes["sha1"],
	sha1_git=hashes["sha1_git"],
	blake2s256=hashes["blake2s256"],
	)
	swh_storage.content_add([content, duplicated_content])

	actual_result = swh_storage.content_find({"sha256": duplicated_content.sha256})
	assert len(actual_result) == 2

	expected_content = attr.evolve(content, data=None)
	expected_duplicated_content = attr.evolve(duplicated_content, data=None)

	for result in actual_result:
	assert result in [expected_content, expected_duplicated_content]

	# Find with both sha256 and blake2s256
	actual_result = swh_storage.content_find(
	{
	"sha256": duplicated_content.sha256,
	"blake2s256": duplicated_content.blake2s256,
	}
	)

	assert len(actual_result) == 1
	assert actual_result == [expected_duplicated_content]

	def test_content_find_with_duplicate_blake2s256(self, swh_storage, sample_data):
	content = sample_data.content

	# Create fake data with colliding sha256 and blake2s256
	sha1_array = bytearray(content.sha1)
	sha1_array[0] += 1
	sha1git_array = bytearray(content.sha1_git)
	sha1git_array[0] += 1
	sha256_array = bytearray(content.sha256)
	sha256_array[0] += 1

	duplicated_content = attr.evolve(
	content,
	sha1=bytes(sha1_array),
	sha1_git=bytes(sha1git_array),
	sha256=bytes(sha256_array),
	)

	swh_storage.content_add([content, duplicated_content])

	actual_result = swh_storage.content_find(
	{"blake2s256": duplicated_content.blake2s256}
	)

	expected_content = attr.evolve(content, data=None)
	expected_duplicated_content = attr.evolve(duplicated_content, data=None)

	for result in actual_result:
	assert result in [expected_content, expected_duplicated_content]

	# Find with both sha256 and blake2s256
	actual_result = swh_storage.content_find(
	{
	"sha256": duplicated_content.sha256,
	"blake2s256": duplicated_content.blake2s256,
	}
	)

	assert actual_result == [expected_duplicated_content]

	def test_content_find_bad_input(self, swh_storage):
	# 1. with no hash to lookup
	with pytest.raises(StorageArgumentException):
	swh_storage.content_find({}) # need at least one hash

	# 2. with bad hash
	with pytest.raises(StorageArgumentException):
	swh_storage.content_find({"unknown-sha1": "something"}) # not the right key

	def test_object_find_by_sha1_git(self, swh_storage, sample_data):
	content = sample_data.content
	directory = sample_data.directory
	revision = sample_data.revision
	release = sample_data.release

	sha1_gits = [b"00000000000000000000"]
	expected = {
	b"00000000000000000000": [],
	}

	swh_storage.content_add([content])
	sha1_gits.append(content.sha1_git)

	expected[content.sha1_git] = [
	{"sha1_git": content.sha1_git, "type": "content",}
	]

	swh_storage.directory_add([directory])
	sha1_gits.append(directory.id)
	expected[directory.id] = [{"sha1_git": directory.id, "type": "directory",}]

	swh_storage.revision_add([revision])
	sha1_gits.append(revision.id)
	expected[revision.id] = [{"sha1_git": revision.id, "type": "revision",}]

	swh_storage.release_add([release])
	sha1_gits.append(release.id)
	expected[release.id] = [{"sha1_git": release.id, "type": "release",}]

	ret = swh_storage.object_find_by_sha1_git(sha1_gits)

	assert expected == ret

	def test_metadata_fetcher_add_get(self, swh_storage, sample_data):
	fetcher = sample_data.metadata_fetcher
	actual_fetcher = swh_storage.metadata_fetcher_get(fetcher.name, fetcher.version)
	assert actual_fetcher is None # does not exist

	swh_storage.metadata_fetcher_add([fetcher])

	res = swh_storage.metadata_fetcher_get(fetcher.name, fetcher.version)
	assert res == fetcher

	actual_objects = list(swh_storage.journal_writer.journal.objects)
	expected_objects = [
	("metadata_fetcher", fetcher),
	]

	for obj in expected_objects:
	assert obj in actual_objects

	def test_metadata_fetcher_add_zero(self, swh_storage, sample_data):
	fetcher = sample_data.metadata_fetcher
	actual_fetcher = swh_storage.metadata_fetcher_get(fetcher.name, fetcher.version)
	assert actual_fetcher is None # does not exist

	swh_storage.metadata_fetcher_add([])

	def test_metadata_authority_add_get(self, swh_storage, sample_data):
	authority = sample_data.metadata_authority

	actual_authority = swh_storage.metadata_authority_get(
	authority.type, authority.url
	)
	assert actual_authority is None # does not exist

	swh_storage.metadata_authority_add([authority])

	res = swh_storage.metadata_authority_get(authority.type, authority.url)
	assert res == authority

	actual_objects = list(swh_storage.journal_writer.journal.objects)
	expected_objects = [
	("metadata_authority", authority),
	]

	for obj in expected_objects:
	assert obj in actual_objects

	def test_metadata_authority_add_zero(self, swh_storage, sample_data):
	authority = sample_data.metadata_authority

	actual_authority = swh_storage.metadata_authority_get(
	authority.type, authority.url
	)
	assert actual_authority is None # does not exist

	swh_storage.metadata_authority_add([])

	def test_content_metadata_add(self, swh_storage, sample_data):
	content = sample_data.content
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	content_metadata = sample_data.content_metadata[:2]

	content_swhid = SWHID(
	object_type="content", object_id=hash_to_bytes(content.sha1_git)
	)

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add(content_metadata)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content_swhid, authority
	)
	assert result.next_page_token is None
	assert list(sorted(result.results, key=lambda x: x.discovery_date,)) == list(
	content_metadata
	)

	actual_objects = list(swh_storage.journal_writer.journal.objects)
	expected_objects = [
	("metadata_authority", authority),
	("metadata_fetcher", fetcher),
	] + [("raw_extrinsic_metadata", item) for item in content_metadata]

	for obj in expected_objects:
	assert obj in actual_objects

	def test_content_metadata_add_duplicate(self, swh_storage, sample_data):
	"""Duplicates should be silently updated."""
	content = sample_data.content
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	content_metadata, content_metadata2 = sample_data.content_metadata[:2]
	content_swhid = SWHID(
	object_type="content", object_id=hash_to_bytes(content.sha1_git)
	)

	new_content_metadata2 = attr.evolve(
	content_metadata2, format="new-format", metadata=b"new-metadata",
	)

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([content_metadata, content_metadata2])
	swh_storage.raw_extrinsic_metadata_add([new_content_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content_swhid, authority
	)
	assert result.next_page_token is None

	expected_results1 = (content_metadata, new_content_metadata2)
	expected_results2 = (content_metadata, content_metadata2)

	assert tuple(sorted(result.results, key=lambda x: x.discovery_date,)) in (
	expected_results1, # cassandra
	expected_results2, # postgresql
	)

	def test_content_metadata_get(self, swh_storage, sample_data):
	content, content2 = sample_data.contents[:2]
	fetcher, fetcher2 = sample_data.fetchers[:2]
	authority, authority2 = sample_data.authorities[:2]
	(
	content1_metadata1,
	content1_metadata2,
	content1_metadata3,
	) = sample_data.content_metadata[:3]

	content1_swhid = SWHID(object_type="content", object_id=content.sha1_git)
	content2_swhid = SWHID(object_type="content", object_id=content2.sha1_git)
	content2_metadata = attr.evolve(content1_metadata2, target=content2_swhid)

	swh_storage.metadata_authority_add([authority, authority2])
	swh_storage.metadata_fetcher_add([fetcher, fetcher2])

	swh_storage.raw_extrinsic_metadata_add(
	[
	content1_metadata1,
	content1_metadata2,
	content1_metadata3,
	content2_metadata,
	]
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content1_swhid, authority
	)
	assert result.next_page_token is None
	assert [content1_metadata1, content1_metadata2] == list(
	sorted(result.results, key=lambda x: x.discovery_date,)
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content1_swhid, authority2
	)
	assert result.next_page_token is None
	assert [content1_metadata3] == list(
	sorted(result.results, key=lambda x: x.discovery_date,)
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content2_swhid, authority
	)
	assert result.next_page_token is None
	assert [content2_metadata] == list(result.results,)

	def test_content_metadata_get_after(self, swh_storage, sample_data):
	content = sample_data.content
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	content_metadata, content_metadata2 = sample_data.content_metadata[:2]

	content_swhid = SWHID(object_type="content", object_id=content.sha1_git)

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([content_metadata, content_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT,
	content_swhid,
	authority,
	after=content_metadata.discovery_date - timedelta(seconds=1),
	)
	assert result.next_page_token is None
	assert [content_metadata, content_metadata2] == list(
	sorted(result.results, key=lambda x: x.discovery_date,)
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT,
	content_swhid,
	authority,
	after=content_metadata.discovery_date,
	)
	assert result.next_page_token is None
	assert result.results == [content_metadata2]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT,
	content_swhid,
	authority,
	after=content_metadata2.discovery_date,
	)
	assert result.next_page_token is None
	assert result.results == []

	def test_content_metadata_get_paginate(self, swh_storage, sample_data):
	content = sample_data.content
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	content_metadata, content_metadata2 = sample_data.content_metadata[:2]

	content_swhid = SWHID(object_type="content", object_id=content.sha1_git)

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])
	swh_storage.raw_extrinsic_metadata_add([content_metadata, content_metadata2])
	swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content_swhid, authority
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content_swhid, authority, limit=1
	)
	assert result.next_page_token is not None
	assert result.results == [content_metadata]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT,
	content_swhid,
	authority,
	limit=1,
	page_token=result.next_page_token,
	)
	assert result.next_page_token is None
	assert result.results == [content_metadata2]

	def test_content_metadata_get_paginate_same_date(self, swh_storage, sample_data):
	content = sample_data.content
	fetcher1, fetcher2 = sample_data.fetchers[:2]
	authority = sample_data.metadata_authority
	content_metadata, content_metadata2 = sample_data.content_metadata[:2]

	content_swhid = SWHID(object_type="content", object_id=content.sha1_git)

	swh_storage.metadata_fetcher_add([fetcher1, fetcher2])
	swh_storage.metadata_authority_add([authority])

	new_content_metadata2 = attr.evolve(
	content_metadata2,
	discovery_date=content_metadata2.discovery_date,
	fetcher=attr.evolve(fetcher2, metadata=None),
	)

	swh_storage.raw_extrinsic_metadata_add(
	[content_metadata, new_content_metadata2]
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, content_swhid, authority, limit=1
	)
	assert result.next_page_token is not None
	assert result.results == [content_metadata]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT,
	content_swhid,
	authority,
	limit=1,
	page_token=result.next_page_token,
	)
	assert result.next_page_token is None
	assert result.results == [new_content_metadata2]

	def test_content_metadata_get__invalid_id(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	content_metadata, content_metadata2 = sample_data.content_metadata[:2]

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])
	swh_storage.raw_extrinsic_metadata_add([content_metadata, content_metadata2])

	with pytest.raises(StorageArgumentException, match="SWHID"):
	swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.CONTENT, origin.url, authority
	)

	def test_origin_metadata_add(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]

	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority
	)
	assert result.next_page_token is None
	assert list(sorted(result.results, key=lambda x: x.discovery_date)) == [
	origin_metadata,
	origin_metadata2,
	]

	actual_objects = list(swh_storage.journal_writer.journal.objects)
	expected_objects = [
	("metadata_authority", authority),
	("metadata_fetcher", fetcher),
	("raw_extrinsic_metadata", origin_metadata),
	("raw_extrinsic_metadata", origin_metadata2),
	]

	for obj in expected_objects:
	assert obj in actual_objects

	def test_origin_metadata_add_duplicate(self, swh_storage, sample_data):
	"""Duplicates should be silently updated."""
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	new_origin_metadata2 = attr.evolve(
	origin_metadata2, format="new-format", metadata=b"new-metadata",
	)

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])
	swh_storage.raw_extrinsic_metadata_add([new_origin_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority
	)
	assert result.next_page_token is None

	# which of the two behavior happens is backend-specific.
	expected_results1 = (origin_metadata, new_origin_metadata2)
	expected_results2 = (origin_metadata, origin_metadata2)

	assert tuple(sorted(result.results, key=lambda x: x.discovery_date,)) in (
	expected_results1, # cassandra
	expected_results2, # postgresql
	)

	def test_origin_metadata_get(self, swh_storage, sample_data):
	origin, origin2 = sample_data.origins[:2]
	fetcher, fetcher2 = sample_data.fetchers[:2]
	authority, authority2 = sample_data.authorities[:2]
	(
	origin1_metadata1,
	origin1_metadata2,
	origin1_metadata3,
	) = sample_data.origin_metadata[:3]

	assert swh_storage.origin_add([origin, origin2]) == {"origin:add": 2}

	origin2_metadata = attr.evolve(origin1_metadata2, target=origin2.url)

	swh_storage.metadata_authority_add([authority, authority2])
	swh_storage.metadata_fetcher_add([fetcher, fetcher2])

	swh_storage.raw_extrinsic_metadata_add(
	[origin1_metadata1, origin1_metadata2, origin1_metadata3, origin2_metadata]
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority
	)
	assert result.next_page_token is None
	assert [origin1_metadata1, origin1_metadata2] == list(
	sorted(result.results, key=lambda x: x.discovery_date,)
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority2
	)
	assert result.next_page_token is None
	assert [origin1_metadata3] == list(
	sorted(result.results, key=lambda x: x.discovery_date,)
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin2.url, authority
	)
	assert result.next_page_token is None
	assert [origin2_metadata] == list(result.results,)

	def test_origin_metadata_get_after(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]

	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])
	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN,
	origin.url,
	authority,
	after=origin_metadata.discovery_date - timedelta(seconds=1),
	)
	assert result.next_page_token is None
	assert list(sorted(result.results, key=lambda x: x.discovery_date,)) == [
	origin_metadata,
	origin_metadata2,
	]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN,
	origin.url,
	authority,
	after=origin_metadata.discovery_date,
	)
	assert result.next_page_token is None
	assert result.results == [origin_metadata2]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN,
	origin.url,
	authority,
	after=origin_metadata2.discovery_date,
	)
	assert result.next_page_token is None
	assert result.results == []

	def test_origin_metadata_get_paginate(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority
	)

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority, limit=1
	)
	assert result.next_page_token is not None
	assert result.results == [origin_metadata]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN,
	origin.url,
	authority,
	limit=1,
	page_token=result.next_page_token,
	)
	assert result.next_page_token is None
	assert result.results == [origin_metadata2]

	def test_origin_metadata_get_paginate_same_date(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher1, fetcher2 = sample_data.fetchers[:2]
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher1, fetcher2])
	swh_storage.metadata_authority_add([authority])

	new_origin_metadata2 = attr.evolve(
	origin_metadata2,
	discovery_date=origin_metadata2.discovery_date,
	fetcher=attr.evolve(fetcher2, metadata=None),
	)

	swh_storage.raw_extrinsic_metadata_add([origin_metadata, new_origin_metadata2])

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, origin.url, authority, limit=1
	)
	assert result.next_page_token is not None
	assert result.results == [origin_metadata]

	result = swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN,
	origin.url,
	authority,
	limit=1,
	page_token=result.next_page_token,
	)
	assert result.next_page_token is None
	assert result.results == [new_origin_metadata2]

	def test_origin_metadata_add_missing_authority(self, swh_storage, sample_data):
	origin = sample_data.origin
	fetcher = sample_data.metadata_fetcher
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher])

	with pytest.raises(StorageArgumentException, match="authority"):
	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	def test_origin_metadata_add_missing_fetcher(self, swh_storage, sample_data):
	origin = sample_data.origin
	authority = sample_data.metadata_authority
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_authority_add([authority])

	with pytest.raises(StorageArgumentException, match="fetcher"):
	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	def test_origin_metadata_get__invalid_id_type(self, swh_storage, sample_data):
	origin = sample_data.origin
	authority = sample_data.metadata_authority
	fetcher = sample_data.metadata_fetcher
	origin_metadata, origin_metadata2 = sample_data.origin_metadata[:2]
	content_metadata = sample_data.content_metadata[0]
	assert swh_storage.origin_add([origin]) == {"origin:add": 1}

	swh_storage.metadata_fetcher_add([fetcher])
	swh_storage.metadata_authority_add([authority])

	swh_storage.raw_extrinsic_metadata_add([origin_metadata, origin_metadata2])

	with pytest.raises(StorageArgumentException, match="SWHID"):
	swh_storage.raw_extrinsic_metadata_get(
	MetadataTargetType.ORIGIN, content_metadata.target, authority,
	)


	class TestStorageGeneratedData:
	def test_generate_content_get_data(self, swh_storage, swh_contents):
	contents_with_data = [c for c in swh_contents if c.status != "absent"]

	# retrieve contents
	for content in contents_with_data:
	actual_content_data = swh_storage.content_get_data(content.sha1)
	assert actual_content_data is not None
	assert actual_content_data == content.data

	def test_generate_content_get(self, swh_storage, swh_contents):
	expected_contents = [
	attr.evolve(c, data=None) for c in swh_contents if c.status != "absent"
	]

	actual_contents = swh_storage.content_get([c.sha1 for c in expected_contents])

	assert len(actual_contents) == len(expected_contents)
	assert actual_contents == expected_contents

	@pytest.mark.parametrize("limit", [1, 7, 10, 100, 1000])
	def test_origin_list(self, swh_storage, swh_origins, limit):
	returned_origins = []

	page_token = None
	i = 0
	while True:
	actual_page = swh_storage.origin_list(page_token=page_token, limit=limit)
	assert len(actual_page.results) <= limit

	returned_origins.extend(actual_page.results)

	i += 1
	page_token = actual_page.next_page_token

	if page_token is None:
	assert i * limit >= len(swh_origins)
	break
	else:
	assert len(actual_page.results) == limit

	assert sorted(returned_origins) == sorted(swh_origins)

	def test_origin_count(self, swh_storage, sample_data):
	swh_storage.origin_add(sample_data.origins)

	assert swh_storage.origin_count("github") == 3
	assert swh_storage.origin_count("gitlab") == 2
	assert swh_storage.origin_count(".user.", regexp=True) == 5
	assert swh_storage.origin_count(".user.", regexp=False) == 0
	assert swh_storage.origin_count(".user1.", regexp=True) == 2
	assert swh_storage.origin_count(".user1.", regexp=False) == 0

	def test_origin_count_with_visit_no_visits(self, swh_storage, sample_data):
	swh_storage.origin_add(sample_data.origins)

	# none of them have visits, so with_visit=True => 0
	assert swh_storage.origin_count("github", with_visit=True) == 0
	assert swh_storage.origin_count("gitlab", with_visit=True) == 0
	assert swh_storage.origin_count(".user.", regexp=True, with_visit=True) == 0
	assert swh_storage.origin_count(".user.", regexp=False, with_visit=True) == 0
	assert swh_storage.origin_count(".user1.", regexp=True, with_visit=True) == 0
	assert swh_storage.origin_count(".user1.", regexp=False, with_visit=True) == 0

	def test_origin_count_with_visit_with_visits_no_snapshot(
	self, swh_storage, sample_data
	):
	swh_storage.origin_add(sample_data.origins)

	origin_url = "https://github.com/user1/repo1"
	visit = OriginVisit(origin=origin_url, date=now(), type="git",)
	swh_storage.origin_visit_add([visit])

	assert swh_storage.origin_count("github", with_visit=False) == 3
	# it has a visit, but no snapshot, so with_visit=True => 0
	assert swh_storage.origin_count("github", with_visit=True) == 0

	assert swh_storage.origin_count("gitlab", with_visit=False) == 2
	# these gitlab origins have no visit
	assert swh_storage.origin_count("gitlab", with_visit=True) == 0

	assert (
	swh_storage.origin_count("github.*user1", regexp=True, with_visit=False)
	== 1
	)
	assert (
	swh_storage.origin_count("github.*user1", regexp=True, with_visit=True) == 0
	)
	assert swh_storage.origin_count("github", regexp=True, with_visit=True) == 0

	def test_origin_count_with_visit_with_visits_and_snapshot(
	self, swh_storage, sample_data
	):
	snapshot = sample_data.snapshot
	swh_storage.origin_add(sample_data.origins)

	swh_storage.snapshot_add([snapshot])
	origin_url = "https://github.com/user1/repo1"
	visit = OriginVisit(origin=origin_url, date=now(), type="git",)
	visit = swh_storage.origin_visit_add([visit])[0]
	swh_storage.origin_visit_status_add(
	[
	OriginVisitStatus(
	origin=origin_url,
	visit=visit.visit,
	date=now(),
	status="ongoing",
	snapshot=snapshot.id,
	)
	]
	)

	assert swh_storage.origin_count("github", with_visit=False) == 3
	# github/user1 has a visit and a snapshot, so with_visit=True => 1
	assert swh_storage.origin_count("github", with_visit=True) == 1

	assert (
	swh_storage.origin_count("github.*user1", regexp=True, with_visit=False)
	== 1
	)
	assert (
	swh_storage.origin_count("github.*user1", regexp=True, with_visit=True) == 1
	)
	assert swh_storage.origin_count("github", regexp=True, with_visit=True) == 1

	@settings(suppress_health_check=[HealthCheck.too_slow])
	@given(strategies.lists(objects(split_content=True), max_size=2))
	def test_add_arbitrary(self, swh_storage, objects):
	for (obj_type, obj) in objects:
	if obj.object_type == "origin_visit":
	swh_storage.origin_add([Origin(url=obj.origin)])
	visit = OriginVisit(origin=obj.origin, date=obj.date, type=obj.type,)
	swh_storage.origin_visit_add([visit])
	else:
	method = getattr(swh_storage, obj_type + "_add")
	try:
	method([obj])
	except HashCollision:
	pass

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