t.Errorf("got %v, want %v", got, 42)
	}

	o := js.ValueOf(object{"x": object{"y": 42}})
	if got := o.Get("x").Get("y").Int(); got != 42 {
		t.Errorf("got %v, want %v", got, 42)
	}
}

func TestZeroValue(t *testing.T) {
	var v js.Value
	if !v.IsUndefined() {
		t.Error("zero js.Value is not js.Undefined()")
	}
}

func TestFuncOf(t *testing.T) {
	c := make(chan struct{})