public void Background_PatternYStepTest() { BackgroundStyle target = new BackgroundStyle(); Assert.AreEqual(target.PatternYStep, PDFUnit.Zero); PDFUnit expected = (PDFUnit)10; target.PatternYStep = expected; Assert.AreEqual(target.PatternYStep, expected); expected = -20; target.PatternYStep = expected; Assert.AreEqual(target.PatternYStep, expected); target.RemovePatternYStep(); Assert.AreEqual(target.PatternYStep, PDFUnit.Zero); }