def test_parse_basic_index():
index = OCIIndex(Bytes.for_string_or_unicode(SAMPLE_INDEX))
assert index.is_manifest_list
assert index.digest == "sha256:b1a216e8ed6a267bd3f0234d0d096c04658b28cb08b2b16bf812cf72694d7d04"
assert index.local_blob_digests == []
assert index.child_manifest_digests() == [
u"sha256:e692418e4cbaf90ca69d05a66403747baa33ee08806650b51fab815ad7fc331f",
u"sha256:5b0bcabd1ed22e9fb1310cf6c2dec7cdef19f0ad69efa1f392e94a4333501270",
]
def parse_manifest_from_bytes(manifest_bytes, media_type, validate=True):
"""
Parses and returns a manifest from the given bytes, for the given media type.
Raises a ManifestException if the parse fails for some reason.
"""
assert isinstance(manifest_bytes, Bytes)
if media_type == DOCKER_SCHEMA2_MANIFEST_CONTENT_TYPE:
return DockerSchema2Manifest(manifest_bytes)
if media_type == DOCKER_SCHEMA2_MANIFESTLIST_CONTENT_TYPE:
return DockerSchema2ManifestList(manifest_bytes)
if media_type == OCI_IMAGE_MANIFEST_CONTENT_TYPE:
return OCIManifest(manifest_bytes)
if media_type == OCI_IMAGE_INDEX_CONTENT_TYPE:
return OCIIndex(manifest_bytes)
if media_type in DOCKER_SCHEMA1_CONTENT_TYPES:
return DockerSchema1Manifest(manifest_bytes, validate=validate)
raise ManifestException("Unknown or unsupported manifest media type `%s`" %
media_type)
def test_invalid_index():
with pytest.raises(MalformedIndex):
OCIIndex(Bytes.for_string_or_unicode("{}"))
def test_config_missing_required():
valid_index = json.loads(SAMPLE_INDEX)
valid_index.pop("schemaVersion")
with pytest.raises(MalformedIndex):
OCIIndex(Bytes.for_string_or_unicode(json.dumps(valid_index)))