Files
attest/attestation/layout_test.go
James Carnegie c0510fb76c Support images as well as indexes in ImageDetailResolvers (#183)
* build: Generate test data for unsigned and no provenance image indexes
* feat: Add function to build index without SBOM or provenance for linux/amd64 platform
* feat: add build_image function to build image without SBOM or provenance for linux/amd64
* feat: Rename NO_SBOM_NO_PROVENANCE_INDEX_DIR to UNSIGNED_IMAGE_DIR
* feat: support images in details resolvers
2024-09-30 20:53:13 +01:00

108 lines
3.3 KiB
Go

package attestation_test
import (
"context"
"path/filepath"
"strings"
"testing"
"github.com/docker/attest"
"github.com/docker/attest/attestation"
"github.com/docker/attest/internal/test"
"github.com/docker/attest/oci"
"github.com/docker/attest/policy"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestAttestationFromOCILayout(t *testing.T) {
ctx, signer := test.Setup(t)
outputLayout := test.CreateTempDir(t, "", "attest-oci-layout")
invalidPlatform := &v1.Platform{
Architecture: "invalid",
OS: "invalid",
}
opts := &attestation.SigningOptions{}
attIdx, err := oci.IndexFromPath(test.UnsignedTestIndex(".."))
require.NoError(t, err)
signedManifests, err := attest.SignStatements(ctx, attIdx.Index, signer, opts)
require.NoError(t, err)
signedIndex := attIdx.Index
signedIndex, err = attestation.UpdateIndexImages(signedIndex, signedManifests)
require.NoError(t, err)
spec, err := oci.ParseImageSpec(oci.LocalPrefix + outputLayout)
require.NoError(t, err)
err = oci.SaveIndex(ctx, []*oci.ImageSpec{spec}, signedIndex, "docker.io/library/test-image:test")
require.NoError(t, err)
testCases := []struct {
name string
platform *v1.Platform
errorStr string
}{
{name: "nominal", platform: spec.Platform},
{name: "invalid platform", platform: invalidPlatform, errorStr: "platform not found in index"},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
spec := &oci.ImageSpec{
Type: oci.OCI,
Identifier: outputLayout,
Platform: tc.platform,
}
resolver, err := policy.CreateImageDetailsResolver(spec)
if tc.errorStr != "" {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.errorStr)
return
}
require.NoError(t, err)
desc, err := resolver.ImageDescriptor(ctx)
require.NoError(t, err)
digest := desc.Digest.String()
assert.True(t, strings.Contains(digest, "sha256:"))
})
}
}
func TestSubjectNameAnnotations(t *testing.T) {
testCases := []struct {
name string
ociLayoutPath string
errorStr string
}{
{name: "oci annotation", ociLayoutPath: test.UnsignedTestIndex("..")},
{name: "containerd annotation", ociLayoutPath: filepath.Join("..", "test", "testdata", "containerd-subject-layout")},
{name: "missing subject name", ociLayoutPath: filepath.Join("..", "test", "testdata", "missing-subject-layout"), errorStr: "failed to find subject name in annotations"},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
spec, err := oci.ParseImageSpec(oci.LocalPrefix+tc.ociLayoutPath, oci.WithPlatform("linux/arm64"))
require.NoError(t, err)
_, err = policy.CreateImageDetailsResolver(spec)
if tc.errorStr != "" {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.errorStr)
return
}
require.NoError(t, err)
})
}
}
func TestImageDetailsFromImageLayout(t *testing.T) {
spec, err := oci.ParseImageSpec(oci.LocalPrefix+test.UnsignedTestImage(".."), oci.WithPlatform("linux/arm64"))
require.NoError(t, err)
resolver, err := policy.CreateImageDetailsResolver(spec)
require.NoError(t, err)
desc, err := resolver.ImageDescriptor(context.Background())
require.NoError(t, err)
digest := desc.Digest.String()
assert.Equal(t, "sha256:7ae6b41655929ad8e1848064874a98ac3f68884996c79907f6525e3045f75390", digest)
}