tests: add testImagetoolsAnnotation integration test

Signed-off-by: Qasim Sarfraz <qasimsarfraz@microsoft.com>

tests/imagetools.go

@@ -14,6 +14,7 @@ import (
 
 var imagetoolsTests = []func(t *testing.T, sb integration.Sandbox){
 	testImagetoolsInspectAndFilter,
+	testImagetoolsAnnotation,
 }
 
 func testImagetoolsInspectAndFilter(t *testing.T, sb integration.Sandbox) {
@@ -77,3 +78,56 @@ func testImagetoolsInspectAndFilter(t *testing.T, sb integration.Sandbox) {
 	require.Equal(t, idx.Manifests[1].Digest, idx2.Manifests[0].Digest)
 	require.Equal(t, platforms.Format(*idx.Manifests[1].Platform), platforms.Format(*idx2.Manifests[0].Platform))
 }
+
+func testImagetoolsAnnotation(t *testing.T, sb integration.Sandbox) {
+	if sb.Name() != "docker-container" {
+		t.Skip("imagetools tests are not driver specific and only run on docker-container")
+	}
+
+	dockerfile := []byte(`
+	FROM scratch
+	ARG TARGETARCH
+	COPY foo-${TARGETARCH} /foo
+	`)
+	dir := tmpdir(
+		t,
+		fstest.CreateFile("Dockerfile", dockerfile, 0600),
+		fstest.CreateFile("foo-amd64", []byte("foo-amd64"), 0600),
+		fstest.CreateFile("foo-arm64", []byte("foo-arm64"), 0600),
+	)
+
+	registry, err := sb.NewRegistry()
+	if errors.Is(err, integration.ErrRequirements) {
+		t.Skip(err.Error())
+	}
+	require.NoError(t, err)
+	target := registry + "/buildx/imtools:latest"
+
+	out, err := buildCmd(sb, withArgs("--output", "type=registry,oci-mediatypes=true,name="+target, "--platform=linux/amd64,linux/arm64", "--provenance=false", dir))
+	require.NoError(t, err, string(out))
+
+	cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
+	dt, err := cmd.CombinedOutput()
+	require.NoError(t, err, string(dt))
+
+	var idx ocispecs.Index
+	err = json.Unmarshal(dt, &idx)
+	require.NoError(t, err)
+	require.Empty(t, idx.Annotations)
+
+	// update the index with annotations
+	cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", target, target+"@"+string(idx.Manifests[0].Digest),
+		target+"@"+string(idx.Manifests[1].Digest), "--annotation", "index:foo=bar", "--annotation", "index:bar=baz"))
+	dt, err = cmd.CombinedOutput()
+	require.NoError(t, err, string(dt))
+
+	cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
+	dt, err = cmd.CombinedOutput()
+	require.NoError(t, err, string(dt))
+
+	err = json.Unmarshal(dt, &idx)
+	require.NoError(t, err)
+	require.Len(t, idx.Annotations, 2)
+	require.Equal(t, "bar", idx.Annotations["foo"])
+	require.Equal(t, "baz", idx.Annotations["bar"])
+}