Function runCliCommand

cmd/docker/docker_test.go:60–83

(t *testing.T, r io.ReadCloser, w io.Writer, args ...string)

var discard = io.NopCloser(bytes.NewBuffer(nil))

func runCliCommand(t *testing.T, r io.ReadCloser, w io.Writer, args ...string) error {
	t.Helper()
	if r == nil {
		r = discard
	}
	if w == nil {
		w = io.Discard
	}
	ctx, cancel := context.WithCancel(context.TODO())
	defer cancel()

	cli, err := command.NewDockerCli(
		command.WithBaseContext(ctx),
		command.WithInputStream(r),
		command.WithCombinedStreams(w))
	assert.NilError(t, err)
	tcmd := newDockerCommand(cli)

	tcmd.SetArgs(args)
	cmd, _, err := tcmd.HandleGlobalFlags()
	assert.NilError(t, err)
	assert.NilError(t, tcmd.Initialize())
	return cmd.Execute()
}

func TestExitStatusForInvalidSubcommandWithHelpFlag(t *testing.T) {
	err := runCliCommand(t, nil, nil, "help", "invalid")