Function TestPrintHelpCustomTemplateError

help_test.go:2084–2123

(t *testing.T)

}

func TestPrintHelpCustomTemplateError(t *testing.T) {
	tmpls := []*string{
		&helpNameTemplate,
		&argsTemplate,
		&usageTemplate,
		&descriptionTemplate,
		&visibleCommandTemplate,
		&copyrightTemplate,
		&versionTemplate,
		&visibleFlagCategoryTemplate,
		&visibleFlagTemplate,
		&visiblePersistentFlagTemplate,
		&visibleFlagCategoryTemplate,
		&authorsTemplate,
		&visibleCommandCategoryTemplate,
	}

	oldErrWriter := ErrWriter
	defer func() { ErrWriter = oldErrWriter }()

	t.Setenv("CLI_TEMPLATE_ERROR_DEBUG", "true")

	for _, tmpl := range tmpls {
		oldtmpl := *tmpl
		// safety mechanism in case something fails
		defer func(stmpl *string) { *stmpl = oldtmpl }(tmpl)

		errBuf := &bytes.Buffer{}
		ErrWriter = errBuf
		buf := &bytes.Buffer{}

		*tmpl = "{{junk"
		DefaultPrintHelpCustom(buf, "", "", nil)

		assert.Contains(t, errBuf.String(), "CLI TEMPLATE ERROR")

		// reset template back.
		*tmpl = oldtmpl
	}
}

func TestCustomUsageCommandHelp(t *testing.T) {
	old := UsageCommandHelp