public void HelixRenderPackage_ManyLineVertexColors_AllLineStripVerticesHaveColor_False()
        {
            var p = new HelixRenderPackage();
            Assert.NotNull(p);

            // Different line strip vertex colors.
            HelixRenderPackageTests.PushLineIntoPackage(p);
            p.AddLineStripVertexColor(255, 0, 0, 255);
            p.AddLineStripVertexColor(255, 255, 0, 0);

            Assert.False(p.AllLineStripVerticesHaveColor(Color.FromArgb(255, 255, 0, 0)));
        }
        public void HelixRenderPackage_SingleLineVertexColor_AllLineStripVerticesHaveColor_True()
        {
            var p = new HelixRenderPackage();
            Assert.NotNull(p);

            // Same line strip vertex colors.
            HelixRenderPackageTests.PushLineIntoPackage(p);
            p.AddLineStripVertexColor(255,0,0,255);
            p.AddLineStripVertexColor(255,0,0,255);

            Assert.True(p.AllLineStripVerticesHaveColor(Color.FromArgb(255,255,0,0)));
        }