public void TestUnion()
{
Caps caps1 = Caps.FromString("video/x-raw-yuv, " +
"format=(fourcc)I420, " +
"width=(int)640");
Caps caps2 = Caps.FromString("video/x-raw-yuv, " +
"format=(fourcc)I420, " +
"height=(int)480");
Assert.IsNotNull(caps1);
Assert.IsNotNull(caps2);
Assert.IsFalse(caps1.Handle == IntPtr.Zero, "Ooops, null handle in caps1");
Assert.IsFalse(caps1.Handle == IntPtr.Zero, "Ooops, null handle in caps2");
Caps caps3 = caps1.Union(caps2);
Assert.IsFalse(caps3.IsEmpty, "How come caps are EMPTY?!");
Caps caps4 = Caps.FromString("video/x-raw-yuv, " +
"format=(fourcc)I420, " +
"width=(int)640; " +
"video/x-raw-yuv, " +
"format=(fourcc)I420, " +
"height=(int)480");
Assert.IsTrue(caps3.IsEqual(caps4));
}