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test_server.py
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# Copyright (C) 2019-2021 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
import os
from typing import Any, Dict
import pytest
import yaml
from swh.core.config import load_from_envvar
from swh.storage.api.server import (
StorageServerApp,
load_and_check_config,
make_app_from_configfile,
)
def prepare_config_file(tmpdir, content, name="config.yml"):
"""Prepare configuration file in `$tmpdir/name` with content `content`.
Args:
tmpdir (LocalPath): root directory
content (str/dict): Content of the file either as string or as a dict.
If a dict, converts the dict into a yaml string.
name (str): configuration filename
Returns
path (str) of the configuration file prepared.
"""
config_path = tmpdir / name
if isinstance(content, dict): # convert if needed
content = yaml.dump(content)
config_path.write_text(content, encoding="utf-8")
# pytest on python3.5 does not support LocalPath manipulation, so
# convert path to string
return str(config_path)
@pytest.mark.parametrize("storage_class", [None, ""])
def test_load_and_check_config_no_configuration(storage_class):
"""Inexistent configuration files raises"""
with pytest.raises(EnvironmentError, match="Configuration file must be defined"):
load_and_check_config(storage_class)
def test_load_and_check_config_inexistent_file():
config_path = "/some/inexistent/config.yml"
expected_error = f"Configuration file {config_path} does not exist"
with pytest.raises(FileNotFoundError, match=expected_error):
load_and_check_config(config_path)
def test_load_and_check_config_wrong_configuration(tmpdir):
"""Wrong configuration raises"""
config_path = prepare_config_file(tmpdir, "something: useless")
with pytest.raises(KeyError, match="Missing 'storage' configuration"):
load_and_check_config(config_path)
def test_load_and_check_config_local_config_fine(tmpdir):
"""'local' complete configuration is fine"""
config = {
"storage": {
"cls": "postgresql",
"db": "db",
"objstorage": "something",
}
}
config_path = prepare_config_file(tmpdir, config)
cfg = load_and_check_config(config_path)
assert cfg == config
@pytest.fixture
def swh_storage_server_config(
swh_storage_backend_config: Dict[str, Any]
) -> Dict[str, Any]:
return {"storage": swh_storage_backend_config}
@pytest.fixture
def swh_storage_config(monkeypatch, swh_storage_server_config, tmp_path):
conf_path = os.path.join(str(tmp_path), "storage.yml")
with open(conf_path, "w") as f:
f.write(yaml.dump(swh_storage_server_config))
monkeypatch.setenv("SWH_CONFIG_FILENAME", conf_path)
return conf_path
def test_server_make_app_from_config_file(swh_storage_config):
app = make_app_from_configfile()
expected_cfg = load_from_envvar()
assert app is not None
assert isinstance(app, StorageServerApp)
assert app.config["storage"] == expected_cfg["storage"]
app2 = make_app_from_configfile()
assert app is app2

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