def test__symlink_units_existing_correct_link(self, symlink):
"""
Make sure that the _symlink_units handles an existing correct link well.
"""
repo = MagicMock(spec=Repository)
repo.working_dir = self.temp_dir
progress_report = progress.PublishProgressReport(self.publish_conduit)
# There's some logic in _symlink_units to handle preexisting files and symlinks, so let's
# create some fakes to see if it does the right thing
build_dir = publish._get_or_create_build_dir(repo)
unit = self.existing_units[0]
expected_symlink_destination = os.path.join("/", "path", unit.unit_key["name"])
os.symlink(expected_symlink_destination, os.path.join(build_dir, unit.unit_key["name"]))
# Now let's reset the Mock so that we can make sure it doesn't get called during _symlink
symlink.reset_mock()
publish._symlink_units(repo, [unit], progress_report)
# The call count for symlink should be 0, because the _symlink_units call should have noticed that the
# symlink was already correct and thus should have skipped it
self.assertEqual(symlink.call_count, 0)
expected_symlink_path = os.path.join(build_dir, unit.unit_key["name"])
self.assertTrue(os.path.islink(expected_symlink_path))
self.assertEqual(os.path.realpath(expected_symlink_path), expected_symlink_destination)
def test__symlink_units_os_error(self, readlink):
"""
Make sure that the _symlink_units handles an OSError correctly, for the case where it doesn't raise
EINVAL. We already have a test that raises EINVAL (test__symlink_units places an ordinary file there.)
"""
os_error = OSError()
# This would be an unexpected error for reading a symlink!
os_error.errno = errno.ENOSPC
readlink.side_effect = os_error
repo = MagicMock(spec=Repository)
repo.working_dir = self.temp_dir
progress_report = progress.PublishProgressReport(self.publish_conduit)
# There's some logic in _symlink_units to handle preexisting files and symlinks, so let's
# create some fakes to see if it does the right thing
build_dir = publish._get_or_create_build_dir(repo)
unit = self.existing_units[0]
expected_symlink_destination = os.path.join("/", "path", unit.unit_key["name"])
os.symlink(expected_symlink_destination, os.path.join(build_dir, unit.unit_key["name"]))
try:
publish._symlink_units(repo, [unit], progress_report)
self.fail("An OSError should have been raised, but was not!")
except OSError, e:
self.assertEqual(e.errno, errno.ENOSPC)
def test__symlink_units(self):
"""
Make sure that the _symlink_units creates all the correct symlinks.
"""
repo = MagicMock(spec=Repository)
repo.working_dir = self.temp_dir
progress_report = progress.PublishProgressReport(self.publish_conduit)
# There's some logic in _symlink_units to handle preexisting files and symlinks, so let's
# create some fakes to see if it does the right thing
build_dir = publish._get_or_create_build_dir(repo)
os.symlink("/some/weird/path", os.path.join(build_dir, self.existing_units[0].unit_key["name"]))
with open(os.path.join(build_dir, self.existing_units[1].unit_key["name"]), "w") as wrong:
wrong.write("This is wrong.")
publish._symlink_units(repo, self.existing_units, progress_report)
build_dir = publish._get_or_create_build_dir(repo)
for unit in self.existing_units:
expected_symlink_path = os.path.join(build_dir, unit.unit_key["name"])
self.assertTrue(os.path.islink(expected_symlink_path))
expected_symlink_destination = os.path.join("/", "path", unit.unit_key["name"])
self.assertEqual(os.path.realpath(expected_symlink_path), expected_symlink_destination)
