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quay/image/docker/schema2/test/test_list.py
Joseph Schorr 1b3daac3c3 Add method for retrieving a V1-compatible manifest for any manifest or manifest list
This is used to serve older clients that don't support the V2 schema format
2018-11-13 10:40:57 +02:00

136 lines
4.1 KiB
Python

import json
import pytest
from image.docker.schema1 import DockerSchema1Manifest
from image.docker.schema2.manifest import DockerSchema2Manifest
from image.docker.schema2.list import (MalformedSchema2ManifestList, DockerSchema2ManifestList,
DockerSchema2ManifestListBuilder)
from image.docker.schema2.test.test_manifest import MANIFEST_BYTES as v22_bytes
from image.docker.test.test_schema1 import MANIFEST_BYTES as v21_bytes
@pytest.mark.parametrize('json_data', [
'',
'{}',
"""
{
"unknown": "key"
}
""",
])
def test_malformed_manifest_lists(json_data):
with pytest.raises(MalformedSchema2ManifestList):
DockerSchema2ManifestList(json_data)
MANIFESTLIST_BYTES = json.dumps({
"schemaVersion": 2,
"mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
"manifests": [
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"size": 983,
"digest": "sha256:e6",
"platform": {
"architecture": "ppc64le",
"os": "linux",
}
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v1+json",
"size": 878,
"digest": "sha256:5b",
"platform": {
"architecture": "amd64",
"os": "linux",
"features": [
"sse4"
]
}
}
]
})
NO_AMD_MANIFESTLIST_BYTES = json.dumps({
"schemaVersion": 2,
"mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
"manifests": [
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"size": 983,
"digest": "sha256:e6",
"platform": {
"architecture": "ppc64le",
"os": "linux",
}
},
]
})
def test_valid_manifestlist():
def _get_manifest(digest):
if digest == 'sha256:e6':
return v22_bytes
else:
return v21_bytes
manifestlist = DockerSchema2ManifestList(MANIFESTLIST_BYTES)
assert len(manifestlist.manifests(_get_manifest)) == 2
assert (manifestlist.digest ==
'sha256:7e22fdbe49736329786c9b4fdc154cc9251b190ca6b4cf33aed00efc0fc3df25')
assert manifestlist.media_type == 'application/vnd.docker.distribution.manifest.list.v2+json'
assert manifestlist.bytes == MANIFESTLIST_BYTES
assert manifestlist.manifest_dict == json.loads(MANIFESTLIST_BYTES)
assert set(manifestlist.blob_digests) == {'sha256:e6', 'sha256:5b'}
for index, manifest in enumerate(manifestlist.manifests(_get_manifest)):
if index == 0:
assert isinstance(manifest.manifest_obj, DockerSchema2Manifest)
assert manifest.manifest_obj.schema_version == 2
else:
assert isinstance(manifest.manifest_obj, DockerSchema1Manifest)
assert manifest.manifest_obj.schema_version == 1
compatible_manifest = manifestlist.get_v1_compatible_manifest('foo', 'bar', 'baz', _get_manifest)
assert compatible_manifest.schema_version == 1
assert manifestlist.layers is None
assert manifestlist.leaf_layer_v1_image_id is None
assert manifestlist.legacy_image_ids is None
def test_get_v1_compatible_manifest_no_matching_list():
def _get_manifest(digest):
if digest == 'sha256:e6':
return v22_bytes
else:
return v21_bytes
manifestlist = DockerSchema2ManifestList(NO_AMD_MANIFESTLIST_BYTES)
assert len(manifestlist.manifests(_get_manifest)) == 1
assert (manifestlist.digest ==
'sha256:50150251101420a020ab4a3e77e9d167a18b09bd4eeb0cc65e0eafab95cf79cf')
assert manifestlist.media_type == 'application/vnd.docker.distribution.manifest.list.v2+json'
assert manifestlist.bytes == NO_AMD_MANIFESTLIST_BYTES
compatible_manifest = manifestlist.get_v1_compatible_manifest('foo', 'bar', 'baz', _get_manifest)
assert compatible_manifest is None
def test_builder():
def _get_manifest(digest):
if digest == 'sha256:e6':
return v22_bytes
else:
return v21_bytes
existing = DockerSchema2ManifestList(MANIFESTLIST_BYTES)
builder = DockerSchema2ManifestListBuilder()
for index, manifest in enumerate(existing.manifests(_get_manifest)):
builder.add_manifest(manifest.manifest_obj, "amd64", "os")
built = builder.build()
assert len(built.manifests(_get_manifest)) == 2