}
}

// testgo sets up for a test that runs testgo.
func testgo(t *testing.T) *testgoData {
	t.Helper()
	testenv.MustHaveGoBuild(t)
	testenv.SkipIfShortAndSlow(t)

	return &testgoData{t: t}
}

// must gives a fatal error if err is not nil.
func (tg *testgoData) must(err error) {
	tg.t.Helper()
	if err != nil {
		tg.t.Fatal(err)
	}
}