public IEnumerator AddBillboardComponent()
        {
            yield return(CreateComponent(x: false, y: true, z: false));

            Assert.IsFalse(billboard.GetModel().x, "Wrong model data! x should be false.");
            Assert.IsTrue(billboard.GetModel().y, "Wrong model data! y should be true.");
            Assert.IsFalse(billboard.GetModel().z, "Wrong model data! z should be false");

            yield return(null);

            yield return(null);
        }