128 lines
3.8 KiB
Go
128 lines
3.8 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package images
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import (
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"encoding/json"
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"testing"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestValidateMediaType(t *testing.T) {
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docTests := []struct {
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mt string
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index bool
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}{
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{MediaTypeDockerSchema2Manifest, false},
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{ocispec.MediaTypeImageManifest, false},
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{MediaTypeDockerSchema2ManifestList, true},
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{ocispec.MediaTypeImageIndex, true},
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}
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for _, tc := range docTests {
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t.Run("manifest-"+tc.mt, func(t *testing.T) {
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manifest := ocispec.Manifest{
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Config: ocispec.Descriptor{Size: 1},
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Layers: []ocispec.Descriptor{{Size: 2}},
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}
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b, err := json.Marshal(manifest)
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require.NoError(t, err, "failed to marshal manifest")
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err = validateMediaType(b, tc.mt)
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if tc.index {
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assert.Error(t, err, "manifest should not be a valid index")
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} else {
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assert.NoError(t, err, "manifest should be valid")
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}
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})
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t.Run("index-"+tc.mt, func(t *testing.T) {
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index := ocispec.Index{
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Manifests: []ocispec.Descriptor{{Size: 1}},
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}
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b, err := json.Marshal(index)
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require.NoError(t, err, "failed to marshal index")
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err = validateMediaType(b, tc.mt)
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if tc.index {
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assert.NoError(t, err, "index should be valid")
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} else {
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assert.Error(t, err, "index should not be a valid manifest")
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}
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})
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}
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mtTests := []struct {
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mt string
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valid []string
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invalid []string
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}{{
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MediaTypeDockerSchema2Manifest,
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[]string{MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest},
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[]string{MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex},
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}, {
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ocispec.MediaTypeImageManifest,
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[]string{MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest},
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[]string{MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex},
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}, {
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MediaTypeDockerSchema2ManifestList,
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[]string{MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex},
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[]string{MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest},
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}, {
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ocispec.MediaTypeImageIndex,
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[]string{MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex},
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[]string{MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest},
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}}
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for _, tc := range mtTests {
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for _, v := range tc.valid {
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t.Run("valid-"+tc.mt+"-"+v, func(t *testing.T) {
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doc := struct {
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MediaType string `json:"mediaType"`
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}{MediaType: v}
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b, err := json.Marshal(doc)
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require.NoError(t, err, "failed to marshal document")
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err = validateMediaType(b, tc.mt)
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assert.NoError(t, err, "document should be valid")
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})
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}
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for _, iv := range tc.invalid {
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t.Run("invalid-"+tc.mt+"-"+iv, func(t *testing.T) {
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doc := struct {
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MediaType string `json:"mediaType"`
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}{MediaType: iv}
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b, err := json.Marshal(doc)
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require.NoError(t, err, "failed to marshal document")
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err = validateMediaType(b, tc.mt)
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assert.Error(t, err, "document should not be valid")
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})
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}
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}
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t.Run("schema1", func(t *testing.T) {
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doc := struct {
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FSLayers []string `json:"fsLayers"`
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}{FSLayers: []string{"1"}}
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b, err := json.Marshal(doc)
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require.NoError(t, err, "failed to marshal document")
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err = validateMediaType(b, "")
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assert.Error(t, err, "document should not be valid")
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})
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}
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