public void TestInsertBackground() { Microsoft.Office.Interop.PowerPoint.Shape bgShape = _designer.ApplyBackgroundEffect(); Assert.IsTrue(bgShape.Name.StartsWith( EffectsDesigner.ShapeNamePrefix + "_" + EffectName.BackGround)); Assert.AreEqual(MsoShapeType.msoPicture, bgShape.Type); Assert.AreEqual(0f, bgShape.Left); Assert.AreEqual(0f, bgShape.Top); Assert.AreEqual(540f, bgShape.Height); Assert.AreEqual(960f, bgShape.Width); }