def _assert_valid_thumbnail_filename(self, expected_error_substring,
thumbnail_filename):
# type: (Text, Text) -> None
"""Helper method for test_require_valid_thumbnail_filename."""
with self.assertRaisesRegexp( # type: ignore[no-untyped-call]
utils.ValidationError, expected_error_substring):
utils.require_valid_thumbnail_filename(thumbnail_filename)
def _assert_valid_thumbnail_filename(
self, expected_error_substring, thumbnail_filename):
"""Helper method for test_require_valid_thumbnail_filename."""
with self.assertRaisesRegexp(
utils.ValidationError, expected_error_substring):
utils.require_valid_thumbnail_filename(
thumbnail_filename)
def require_valid_thumbnail_filename(cls,
thumbnail_filename,
strict=False):
"""Checks whether the thumbnail filename of the blog post is a valid
one.
Args:
thumbnail_filename: str. The thumbnail filename to validate.
strict: bool. Enable strict checks on the blog post when the
blog post is published or is going to be published.
Raises:
ValidationError. Provided thumbnail filename is invalid.
"""
if strict:
if not isinstance(thumbnail_filename, python_utils.BASESTRING):
raise utils.ValidationError(
'Expected thumbnail filename to be a string, received: %s.'
% thumbnail_filename)
if thumbnail_filename == '':
raise utils.ValidationError(
'Thumbnail filename should not be empty.')
utils.require_valid_thumbnail_filename(thumbnail_filename)
def test_require_valid_thumbnail_filename(self):
"""Test thumbnail filename validation."""
self._assert_valid_thumbnail_filename(
'Expected thumbnail filename to be a string, received 10', 10)
self._assert_valid_thumbnail_filename(
'Thumbnail filename should not start with a dot.', '.name')
self._assert_valid_thumbnail_filename(
'Thumbnail filename should not include slashes or '
'consecutive dot characters.', 'file/name')
self._assert_valid_thumbnail_filename(
'Thumbnail filename should not include slashes or '
'consecutive dot characters.', 'file..name')
self._assert_valid_thumbnail_filename(
'Thumbnail filename should include an extension.', 'name')
self._assert_valid_thumbnail_filename(
'Expected a filename ending in svg, received name.jpg', 'name.jpg')
filename = 'filename.svg'
utils.require_valid_thumbnail_filename(filename)
