def test_tag_to_digest_cached(self):
tag_as_string = 'gcr.io/foo/bar:baz'
expected_digest = 'gcr.io/foo/bar@sha256:deadbeef'
actual_digest = resolver.StringToDigest(tag_as_string, {
tag_as_string: expected_digest,
}, _BAD_TRANSPORT)
self.assertEqual(actual_digest, expected_digest)
def test_tag_to_digest_sentinel(self):
sentinel_string = 'XXXXX'
expected_digest = 'gcr.io/foo/bar@sha256:deadbeef'
actual_digest = resolver.StringToDigest(
sentinel_string, {
sentinel_string: expected_digest,
}, _BAD_TRANSPORT)
self.assertEqual(actual_digest, expected_digest)
def test_tag_to_digest_not_cached(self):
with v2_2_image.FromTarball(
TestData(
'io_bazel_rules_k8s/examples/hellogrpc/cc/server/server.tar'
)) as img:
# Add a fake exists method to look like FromRegistry
img.exists = lambda: True
with mock.patch.object(v2_2_image,
'FromRegistry',
return_value=img):
tag_as_string = 'gcr.io/foo/bar:baz'
expected_digest = docker_name.Digest('gcr.io/foo/bar@' +
img.digest())
actual_digest = resolver.StringToDigest(
tag_as_string, {}, _BAD_TRANSPORT)
self.assertEqual(actual_digest, str(expected_digest))