Method FormatError

markers/markers_test.go:713–719

(p errbase.Printer)

func (e *werrFmt) Unwrap() error                 { return e.cause }
func (e *werrFmt) Format(s fmt.State, verb rune) { errbase.FormatError(e, s, verb) }
func (e *werrFmt) FormatError(p errbase.Printer) error {
	p.Print(e.msg)
	if p.Detail() {
		p.Printf("-- this is %s's\nmulti-line payload", e.msg)
	}
	return e.cause
}

func TestInvalidError(t *testing.T) {
	tt := testutils.T{T: t}