public void Clear()
        {
            var p = new RenderTargetPool(_graphicsService);
              var r0 = p.Obtain2D(new RenderTargetFormat(100, 100, false, SurfaceFormat.Color, DepthFormat.None));
              var r1 = p.Obtain2D(new RenderTargetFormat(100, 100, false, SurfaceFormat.Color, DepthFormat.None));

              p.Recycle(r0);
              p.Recycle(r1);

              //Assert.IsFalse(r0.IsDisposed);      // Not disposing RT anymore because of XNA bug.
              //Assert.IsFalse(r1.IsDisposed);

              p.Clear();

              //Assert.IsTrue(r0.IsDisposed);
              //Assert.IsTrue(r1.IsDisposed);
              Assert.AreEqual(0, p.RenderTargets2D.Count);
              Assert.AreEqual(0, p.Counters2D.Count);
        }
        public void Clear()
        {
            var p  = new RenderTargetPool(_graphicsService);
            var r0 = p.Obtain2D(new RenderTargetFormat(100, 100, false, SurfaceFormat.Color, DepthFormat.None));
            var r1 = p.Obtain2D(new RenderTargetFormat(100, 100, false, SurfaceFormat.Color, DepthFormat.None));

            p.Recycle(r0);
            p.Recycle(r1);

            //Assert.IsFalse(r0.IsDisposed);      // Not disposing RT anymore because of XNA bug.
            //Assert.IsFalse(r1.IsDisposed);

            p.Clear();

            //Assert.IsTrue(r0.IsDisposed);
            //Assert.IsTrue(r1.IsDisposed);
            Assert.AreEqual(0, p.RenderTargets2D.Count);
            Assert.AreEqual(0, p.Counters2D.Count);
        }