test_lister.py
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test_lister.py
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	# Copyright (C) 2021-2022 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 pathlib import Path

	import iso8601
	import pytest
	import requests

	from swh.lister.maven.lister import MavenLister

	MVN_URL = "https://repo1.maven.org/maven2/" # main maven repo url
	INDEX_URL = "http://indexes/export.fld" # index directory url

	URL_POM_1 = MVN_URL + "al/aldi/sprova4j/0.1.0/sprova4j-0.1.0.pom"
	URL_POM_2 = MVN_URL + "al/aldi/sprova4j/0.1.1/sprova4j-0.1.1.pom"
	URL_POM_3 = MVN_URL + "com/arangodb/arangodb-graphql/1.2/arangodb-graphql-1.2.pom"


	USER_REPO0 = "aldialimucaj/sprova4j"
	GIT_REPO_URL0_HTTPS = f"https://github.com/{USER_REPO0}"
	GIT_REPO_URL0_API = f"https://api.github.com/repos/{USER_REPO0}"
	ORIGIN_GIT = GIT_REPO_URL0_HTTPS

	USER_REPO1 = "ArangoDB-Community/arangodb-graphql-java"
	GIT_REPO_URL1_HTTPS = f"https://github.com/{USER_REPO1}"
	GIT_REPO_URL1_GIT = f"git://github.com/{USER_REPO1}.git"
	GIT_REPO_URL1_API = f"https://api.github.com/repos/{USER_REPO1}"
	ORIGIN_GIT_INCR = GIT_REPO_URL1_HTTPS

	USER_REPO2 = "webx/citrus"
	GIT_REPO_URL2_HTTPS = f"https://github.com/{USER_REPO2}"
	GIT_REPO_URL2_API = f"https://api.github.com/repos/{USER_REPO2}"

	ORIGIN_SRC = MVN_URL + "al/aldi/sprova4j"

	LIST_SRC_DATA = (
	{
	"type": "maven",
	"url": "https://repo1.maven.org/maven2/al/aldi/sprova4j"
	+ "/0.1.0/sprova4j-0.1.0-sources.jar",
	"time": "2021-07-12T17:06:59+00:00",
	"gid": "al.aldi",
	"aid": "sprova4j",
	"version": "0.1.0",
	"base_url": MVN_URL,
	},
	{
	"type": "maven",
	"url": "https://repo1.maven.org/maven2/al/aldi/sprova4j"
	+ "/0.1.1/sprova4j-0.1.1-sources.jar",
	"time": "2021-07-12T17:37:05+00:00",
	"gid": "al.aldi",
	"aid": "sprova4j",
	"version": "0.1.1",
	"base_url": MVN_URL,
	},
	)


	@pytest.fixture
	def maven_index_full(datadir) -> bytes:
	return Path(datadir, "http_indexes", "export_full.fld").read_bytes()


	@pytest.fixture
	def maven_index_incr_first(datadir) -> bytes:
	return Path(datadir, "http_indexes", "export_incr_first.fld").read_bytes()


	@pytest.fixture
	def maven_pom_1(datadir) -> bytes:
	return Path(datadir, "https_maven.org", "sprova4j-0.1.0.pom").read_bytes()


	@pytest.fixture
	def maven_index_null_mtime(datadir) -> bytes:
	return Path(datadir, "http_indexes", "export_null_mtime.fld").read_bytes()


	@pytest.fixture
	def maven_pom_1_malformed(datadir) -> bytes:
	return Path(datadir, "https_maven.org", "sprova4j-0.1.0.malformed.pom").read_bytes()


	@pytest.fixture
	def maven_pom_2(datadir) -> bytes:
	return Path(datadir, "https_maven.org", "sprova4j-0.1.1.pom").read_bytes()


	@pytest.fixture
	def maven_pom_3(datadir) -> bytes:
	return Path(datadir, "https_maven.org", "arangodb-graphql-1.2.pom").read_bytes()


	@pytest.fixture
	def maven_pom_multi_byte_encoding(datadir) -> bytes:
	return Path(datadir, "https_maven.org", "citrus-parent-3.0.7.pom").read_bytes()


	@pytest.fixture
	def requests_mock(requests_mock):
	"""If github api calls for the configured scm repository, returns its canonical url."""
	for url_api, url_html in [
	(GIT_REPO_URL0_API, GIT_REPO_URL0_HTTPS),
	(GIT_REPO_URL1_API, GIT_REPO_URL1_HTTPS),
	(GIT_REPO_URL2_API, GIT_REPO_URL2_HTTPS),
	]:
	requests_mock.get(
	url_api,
	json={"html_url": url_html},
	)
	yield requests_mock


	@pytest.fixture(autouse=True)
	def network_requests_mock(
	requests_mock, maven_index_full, maven_pom_1, maven_pom_2, maven_pom_3
	):
	requests_mock.get(INDEX_URL, content=maven_index_full)
	requests_mock.get(URL_POM_1, content=maven_pom_1)
	requests_mock.get(URL_POM_2, content=maven_pom_2)
	requests_mock.get(URL_POM_3, content=maven_pom_3)


	@pytest.fixture(autouse=True)
	def retry_sleep_mock(mocker):
	mocker.patch.object(MavenLister.http_request.retry, "sleep")


	def test_maven_full_listing(swh_scheduler):
	"""Covers full listing of multiple pages, checking page results and listed
	origins, statelessness."""

	# Run the lister.
	lister = MavenLister(
	scheduler=swh_scheduler,
	url=MVN_URL,
	instance="maven.org",
	index_url=INDEX_URL,
	incremental=False,
	)

	stats = lister.run()

	# Start test checks.
	assert stats.pages == 5

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	origin_urls = [origin.url for origin in scheduler_origins]

	# 3 git origins + 1 maven origin with 2 releases (one per jar)
	assert set(origin_urls) == {ORIGIN_GIT, ORIGIN_GIT_INCR, ORIGIN_SRC}
	assert len(set(origin_urls)) == len(origin_urls)

	for origin in scheduler_origins:
	if origin.visit_type == "maven":
	for src in LIST_SRC_DATA:
	last_update_src = iso8601.parse_date(src["time"])
	assert last_update_src <= origin.last_update
	assert origin.extra_loader_arguments["artifacts"] == list(LIST_SRC_DATA)

	scheduler_state = lister.get_state_from_scheduler()
	assert scheduler_state is not None
	assert scheduler_state.last_seen_doc == -1
	assert scheduler_state.last_seen_pom == -1


	def test_maven_full_listing_malformed(
	swh_scheduler,
	requests_mock,
	maven_pom_1_malformed,
	):
	"""Covers full listing of multiple pages, checking page results with a malformed
	scm entry in pom."""

	lister = MavenLister(
	scheduler=swh_scheduler,
	url=MVN_URL,
	instance="maven.org",
	index_url=INDEX_URL,
	incremental=False,
	)

	# Set up test.
	requests_mock.get(URL_POM_1, content=maven_pom_1_malformed)

	# Then run the lister.
	stats = lister.run()

	# Start test checks.
	assert stats.pages == 5

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	origin_urls = [origin.url for origin in scheduler_origins]

	# 2 git origins + 1 maven origin with 2 releases (one per jar)
	assert set(origin_urls) == {ORIGIN_GIT, ORIGIN_GIT_INCR, ORIGIN_SRC}
	assert len(origin_urls) == len(set(origin_urls))

	for origin in scheduler_origins:
	if origin.visit_type == "maven":
	for src in LIST_SRC_DATA:
	last_update_src = iso8601.parse_date(src["time"])
	assert last_update_src <= origin.last_update
	assert origin.extra_loader_arguments["artifacts"] == list(LIST_SRC_DATA)

	scheduler_state = lister.get_state_from_scheduler()
	assert scheduler_state is not None
	assert scheduler_state.last_seen_doc == -1
	assert scheduler_state.last_seen_pom == -1


	def test_maven_incremental_listing(
	swh_scheduler,
	requests_mock,
	maven_index_full,
	maven_index_incr_first,
	):
	"""Covers full listing of multiple pages, checking page results and listed
	origins, with a second updated run for statefulness."""

	lister = MavenLister(
	scheduler=swh_scheduler,
	url=MVN_URL,
	instance="maven.org",
	index_url=INDEX_URL,
	incremental=True,
	)

	# Set up test.
	requests_mock.get(INDEX_URL, content=maven_index_incr_first)

	# Then run the lister.
	stats = lister.run()

	# Start test checks.
	assert lister.incremental
	assert lister.updated
	assert stats.pages == 2

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	origin_urls = [origin.url for origin in scheduler_origins]

	# 1 git origins + 1 maven origin with 1 release (one per jar)
	assert set(origin_urls) == {ORIGIN_GIT, ORIGIN_SRC}
	assert len(origin_urls) == len(set(origin_urls))

	for origin in scheduler_origins:
	if origin.visit_type == "maven":
	last_update_src = iso8601.parse_date(LIST_SRC_DATA[0]["time"])
	assert last_update_src == origin.last_update
	assert origin.extra_loader_arguments["artifacts"] == [LIST_SRC_DATA[0]]

	# Second execution of the lister, incremental mode
	lister = MavenLister(
	scheduler=swh_scheduler,
	url=MVN_URL,
	instance="maven.org",
	index_url=INDEX_URL,
	incremental=True,
	)

	scheduler_state = lister.get_state_from_scheduler()
	assert scheduler_state is not None
	assert scheduler_state.last_seen_doc == 1
	assert scheduler_state.last_seen_pom == 1

	# Set up test.
	requests_mock.get(INDEX_URL, content=maven_index_full)

	# Then run the lister.
	stats = lister.run()

	# Start test checks.
	assert lister.incremental
	assert lister.updated
	assert stats.pages == 4

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	origin_urls = [origin.url for origin in scheduler_origins]

	assert set(origin_urls) == {ORIGIN_SRC, ORIGIN_GIT, ORIGIN_GIT_INCR}
	assert len(origin_urls) == len(set(origin_urls))

	for origin in scheduler_origins:
	if origin.visit_type == "maven":
	for src in LIST_SRC_DATA:
	last_update_src = iso8601.parse_date(src["time"])
	assert last_update_src <= origin.last_update
	assert origin.extra_loader_arguments["artifacts"] == list(LIST_SRC_DATA)

	scheduler_state = lister.get_state_from_scheduler()
	assert scheduler_state is not None
	assert scheduler_state.last_seen_doc == 4
	assert scheduler_state.last_seen_pom == 4


	@pytest.mark.parametrize("http_code", [400, 404, 500, 502])
	def test_maven_list_http_error_on_index_read(swh_scheduler, requests_mock, http_code):
	"""should stop listing if the lister fails to retrieve the main index url."""

	lister = MavenLister(scheduler=swh_scheduler, url=MVN_URL, index_url=INDEX_URL)
	requests_mock.get(INDEX_URL, status_code=http_code)
	with pytest.raises(requests.HTTPError): # listing cannot continues so stop
	lister.run()

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	assert len(scheduler_origins) == 0


	@pytest.mark.parametrize("http_code", [400, 404, 500, 502])
	def test_maven_list_http_error_artifacts(
	swh_scheduler,
	requests_mock,
	http_code,
	):
	"""should continue listing when failing to retrieve artifacts."""
	# Test failure of artefacts retrieval.
	requests_mock.get(URL_POM_1, status_code=http_code)

	lister = MavenLister(scheduler=swh_scheduler, url=MVN_URL, index_url=INDEX_URL)

	# on artifacts though, that raises but continue listing
	lister.run()

	# If the maven_index_full step succeeded but not the get_pom step,
	# then we get only one maven-jar origin and one git origin.
	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	origin_urls = [origin.url for origin in scheduler_origins]

	assert set(origin_urls) == {ORIGIN_SRC, ORIGIN_GIT_INCR}
	assert len(origin_urls) == len(set(origin_urls))


	def test_maven_lister_null_mtime(swh_scheduler, requests_mock, maven_index_null_mtime):

	requests_mock.get(INDEX_URL, content=maven_index_null_mtime)

	# Run the lister.
	lister = MavenLister(
	scheduler=swh_scheduler,
	url=MVN_URL,
	instance="maven.org",
	index_url=INDEX_URL,
	incremental=False,
	)

	stats = lister.run()

	# Start test checks.
	assert stats.pages == 1
	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	assert len(scheduler_origins) == 1
	assert scheduler_origins[0].last_update is None


	def test_maven_list_pom_bad_encoding(swh_scheduler, requests_mock, maven_pom_1):
	"""should continue listing when failing to decode pom file."""
	# Test failure of pom parsing by reencoding a UTF-8 pom file to a not expected one
	requests_mock.get(URL_POM_1, content=maven_pom_1.decode("utf-8").encode("utf-32"))

	lister = MavenLister(scheduler=swh_scheduler, url=MVN_URL, index_url=INDEX_URL)

	lister.run()

	# If the maven_index_full step succeeded but not the pom parsing step,
	# then we get only one maven-jar origin and one git origin.
	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	assert len(scheduler_origins) == 2


	def test_maven_list_pom_multi_byte_encoding(
	swh_scheduler, requests_mock, maven_pom_multi_byte_encoding
	):
	"""should parse POM file with multi-byte encoding."""

	# replace pom file with a multi-byte encoding one
	requests_mock.get(URL_POM_1, content=maven_pom_multi_byte_encoding)

	lister = MavenLister(scheduler=swh_scheduler, url=MVN_URL, index_url=INDEX_URL)

	lister.run()

	scheduler_origins = swh_scheduler.get_listed_origins(lister.lister_obj.id).results
	assert len(scheduler_origins) == 3

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