public void Background_PatternXSizeTest() { BackgroundStyle target = new BackgroundStyle(); Assert.AreEqual(target.PatternXSize, PDFUnit.Zero); PDFUnit expected = (PDFUnit)10; target.PatternXSize = expected; Assert.AreEqual(target.PatternXSize, expected); expected = -20; target.PatternXSize = expected; Assert.AreEqual(target.PatternXSize, expected); target.RemovePatternXSize(); Assert.AreEqual(target.PatternXSize, PDFUnit.Zero); }