[Test]
public void CreateBoundingSphere()
{
    var boundingSphere = new BoundingSphere(Vector3D.One, 2.0f);
    Assert.AreEqual(Vector3D.One, boundingSphere.Center);
    Assert.AreEqual(2.0f, boundingSphere.Radius);
}

[Test]
public void CreateBoundingSphere()
{
    var boundingSphere = new BoundingSphere(Vector3D.One, 2.0f);
    Assert.AreEqual(Vector3D.One, boundingSphere.Center);
    Assert.AreEqual(2.0f, boundingSphere.Radius);
}

[Test]
public void IntersectBoundingSphereWithBoundingSphere()
{
    var sphere1 = new BoundingSphere(Vector3D.Zero, 1.0f);
    var sphere2 = new BoundingSphere(Vector3D.One, 1.0f);
    Assert.IsTrue(sphere1.IsColliding(sphere2));
}

[Test]
public void IntersectBoundingSphereWithBoundingSphere()
{
    var sphere1 = new BoundingSphere(Vector3D.Zero, 1.0f);
    var sphere2 = new BoundingSphere(Vector3D.One, 1.0f);
    Assert.IsTrue(sphere1.IsColliding(sphere2));
}