func TestMessage_String(t *testing.T) {
	g := NewWithT(t)
	mt := NewMessageType(Error, "IST-0042", "Cheese type not found: %q")
	m := NewMessage(mt, nil, "Feta")

	g.Expect(m.String()).To(Equal(`Error [IST-0042] Cheese type not found: "Feta"`))
}

func TestMessageWithResource_String(t *testing.T) {
	g := NewWithT(t)
	mt := NewMessageType(Error, "IST-0042", "Cheese type not found: %q")

// Checking that line number is correct in error message.

package main

type Cint int

func foobar(*Cint, Cint, Cint, *Cint)

func main() {
	a := Cint(1)

	foobar(
		&a,
		0,
		0,
		42, // ERROR ".*"
	)