Function TestWrappedCommandHelp

help_test.go:1603–1661

(t *testing.T)

}

func TestWrappedCommandHelp(t *testing.T) {
	// Reset HelpPrinter after this test.
	defer func(old HelpPrinterFunc) {
		HelpPrinter = old
	}(HelpPrinter)

	output := &bytes.Buffer{}
	cmd := &Command{
		Writer:    output,
		ErrWriter: output,
		Commands: []*Command{
			{
				Name:        "add",
				Aliases:     []string{"a"},
				Usage:       "add a task to the list",
				UsageText:   "this is an even longer way of describing adding a task to the list",
				Description: "and a description long enough to wrap in this test case",
				Action: func(context.Context, *Command) error {
					return nil
				},
			},
		},
	}
	cmd.setupDefaults([]string{"cli.test"})
	cmd.setupCommandGraph()

	HelpPrinter = func(w io.Writer, templ string, data any) {
		funcMap := map[string]any{
			"wrapAt": func() int {
				return 30
			},
		}

		HelpPrinterCustom(w, templ, data, funcMap)
	}

	r := require.New(t)

	r.NoError(ShowCommandHelp(context.Background(), cmd, "add"))
	r.Equal(`NAME:
   cli.test add - add a task
                  to the list

USAGE:
   this is an even longer way
   of describing adding a task
   to the list

DESCRIPTION:
   and a description long
   enough to wrap in this test
   case

OPTIONS:
   --help, -h  show help
`,
		output.String(),
	)