def test_mock_envvar(self):
"""Test that environment variables can be mocked properly."""
name, value = n(), n()
self.assertNotIn(name, os.environ)
with mock_envvar(name, value):
self.assertIn(name, os.environ)
self.assertEqual(value, os.getenv(name))
self.assertNotIn(name, os.environ)
def test_ensure_open_lzma(self):
"""Test opening lzma-encoded files."""
with tempfile.TemporaryDirectory() as directory, self.mock_directory():
path = Path(directory) / n()
with self.mock_download_once(path):
with lzma.open(path, "wt") as file:
for row in TEST_TSV_ROWS:
print(*row, sep="\t", file=file) # noqa:T001,T201
with pystow.ensure_open_lzma("test", url=n()) as file:
df = pd.read_csv(file, sep="\t")
self.assertEqual(3, len(df.columns))
def test_ensure_open_tarfile(self):
"""Test opening tarfile-encoded files."""
with tempfile.TemporaryDirectory() as directory, self.mock_directory():
path = Path(directory) / n()
inner_path = n()
with self.mock_download_once(path):
write_tarfile_csv(TEST_DF, path, inner_path)
with pystow.ensure_open_tarfile("test",
url=n(),
inner_path=inner_path) as file:
df = pd.read_csv(file, sep="\t")
self.assertEqual(3, len(df.columns))
def test_getenv_path(self):
"""Test that :func:`getenv_path` works properly."""
envvar = n()
with tempfile.TemporaryDirectory() as directory:
directory = Path(directory)
value = directory / n()
default = directory / n()
self.assertEqual(default, getenv_path(envvar, default))
with mock_envvar(envvar, value.as_posix()):
self.assertEqual(value, getenv_path(envvar, default))
# Check that it goes back
self.assertEqual(default, getenv_path(envvar, default))
def test_mock_home(self):
"""Test that home can be properly mocked."""
name = n()
with tempfile.TemporaryDirectory() as d:
expected_path = Path(d) / name
self.assertFalse(expected_path.exists())
with mock_envvar(PYSTOW_HOME_ENVVAR, expected_path.as_posix()):
self.assertFalse(expected_path.exists())
self.assertEqual(expected_path, get_home(ensure_exists=False))
self.assertFalse(expected_path.exists())
def test_mock_name(self):
"""Test that the name can be properly mocked."""
name = n()
expected_path = Path.home() / name
self.assertFalse(expected_path.exists())
with mock_envvar(PYSTOW_NAME_ENVVAR, name):
self.assertEqual(name, get_name())
self.assertFalse(expected_path.exists())
self.assertEqual(expected_path, get_home(ensure_exists=False))
self.assertFalse(expected_path.exists())
def test_get(self):
"""Test the :func:`get` function."""
parts_examples = [
[n()],
[n(), n()],
[n(), n(), n()],
]
with self.mock_directory():
for parts in parts_examples:
with self.subTest(parts=parts):
self.assertEqual(self.join(*parts), join(*parts))
def test_ensure_custom(self):
"""Test ensure with custom provider."""
with self.mock_directory():
# create a minimal provider
def touch_file(path: Path, **_kwargs):
"""
Create a file.
:param path:
the file path
:param _kwargs:
ignored keywords
"""
path.touch()
# wrap to record calls
provider = mock.Mock(wraps=touch_file)
# the keyword-based parameters for the provider
kwargs = {"a": 4, "c": {0: 1, 5: 7}}
# call first time
name = n()
path = pystow.ensure_custom("test",
name=name,
provider=provider,
**kwargs)
self.assertTrue(path.is_file())
# call a second time
path = pystow.ensure_custom("test",
name=name,
provider=provider,
**kwargs)
# ensure that the provider was only called once with the given parameters
provider.assert_called_once_with(path, **kwargs)
def test_ensure_module(self):
"""Test that the ``ensure_exist`` argument in :meth:`Module.from_key` works properly."""
parts_examples = [
[n()],
[n(), n()],
[n(), n(), n()],
]
ensure_examples = [False, True]
for ensure_exists, parts in itt.product(ensure_examples,
parts_examples):
with self.subTest(ensure_exists=ensure_exists,
parts=parts), self.mock_directory():
expected_directory = self.join(*parts)
module = Module.from_key(*parts, ensure_exists=ensure_exists)
self.assertEqual(expected_directory, module.base)
self.assertIs(
expected_directory.exists(),
ensure_exists,
msg=
f'{expected_directory} should{"" if ensure_exists else " not"} exist.',
)
