Function TestTag

libimage/image_test.go:200–249

(t *testing.T)

}

func TestTag(t *testing.T) {
	// Note: this will resolve pull from the GCR registry (see
	// testdata/registries.conf).
	busyboxLatest := "docker.io/library/busybox:latest"

	runtime, cleanup := testNewRuntime(t)
	defer cleanup()
	ctx := context.Background()

	pullOptions := &PullOptions{}
	pullOptions.Writer = os.Stdout
	pulledImages, err := runtime.Pull(ctx, busyboxLatest, config.PullPolicyMissing, pullOptions)
	require.NoError(t, err)
	require.Len(t, pulledImages, 1)

	image := pulledImages[0]

	digest := "sha256:adab3844f497ab9171f070d4cae4114b5aec565ac772e2f2579405b78be67c96"

	// Tag
	for _, test := range []struct {
		tag         string
		resolvesTo  string
		expectError bool
	}{
		{"foo", "localhost/foo:latest", false},
		{"docker.io/foo", "docker.io/library/foo:latest", false},
		{"quay.io/bar/foo:tag", "quay.io/bar/foo:tag", false},
		{"registry.com/$invalid", "", true},
		{digest, "", true},
		{"foo@" + digest, "", true},
		{"quay.io/foo@" + digest, "", true},
		{"", "", true},
	} {
		err := image.Tag(test.tag)
		if test.expectError {
			require.Error(t, err, "tag should have failed: %v", test)
			continue
		}
		require.NoError(t, err, "tag should have succeeded: %v", test)

		_, resolvedName, err := runtime.LookupImage(test.tag, nil)
		require.NoError(t, err, "image should have resolved locally: %v", test)
		require.Equal(t, test.resolvesTo, resolvedName, "image should have resolved correctly: %v", test)
	}

	// Check for specific error.
	err = image.Tag("foo@" + digest)
	require.True(t, errors.Cause(err) == errTagDigest, "check for specific digest error")
}

func TestUntag(t *testing.T) {
	// Note: this will resolve pull from the GCR registry (see