Function TestHelpTree

help_test.go:283–374

(t *testing.T)

}

func TestHelpTree(t *testing.T) {
	var cli struct {
		One struct {
			Thing struct {
				Arg string `arg help:"argument"`
			} `cmd help:"subcommand thing"`
			Other struct {
				Other string `arg help:"other arg"`
			} `arg help:"subcommand other"`
		} `cmd help:"subcommand one" group:"Group A" aliases:"un,uno"` // Groups are ignored in trees

		Two struct {
			Three threeArg `arg help:"Sub-sub-arg."`

			Four struct{} `cmd help:"Sub-sub-command." aliases:"for,fore"`
		} `cmd help:"Another subcommand."`
	}

	w := bytes.NewBuffer(nil)
	exited := false
	app := mustNew(t, &cli,
		kong.Name("test-app"),
		kong.Description("A test app."),
		kong.Writers(w, w),
		kong.ConfigureHelp(kong.HelpOptions{
			Tree:     true,
			Indenter: kong.LineIndenter,
		}),
		kong.Exit(func(int) {
			exited = true
			panic(true) // Panic to fake "exit".
		}),
	)

	t.Run("Full", func(t *testing.T) {
		panicsTrue(t, func() {
			_, err := app.Parse([]string{"--help"})
			assert.NoError(t, err)
		})
		assert.True(t, exited)
		expected := `Usage: test-app <command>

A test app.

Flags:
  -h, --help    Show context-sensitive help.

Commands:
  one (un,uno)         subcommand one
  - thing              subcommand thing
    - <arg>            argument
  - <other>            subcommand other

  two                  Another subcommand.
  - <three>            Sub-sub-arg.
  - four (for,fore)    Sub-sub-command.

Run "test-app <command> --help" for more information on a command.