t.Errorf("frames.Next() got %+v want %+v", frame.Func, f)
	}
}

func BenchmarkFunc(b *testing.B) {
	pc, _, _, ok := runtime.Caller(0)
	if !ok {
		b.Fatal("failed to look up PC")
	}
	f := runtime.FuncForPC(pc)
	b.Run("Name", func(b *testing.B) {
		for i := 0; i < b.N; i++ {
			name := f.Name()
			if name != "runtime_test.BenchmarkFunc" {
				b.Fatalf("unexpected name %q", name)
			}
		}
	})