public void TestContainsDigit() { Assert.AreEqual(false, WordUtil.ContainsDigit(" ")); Assert.AreEqual(true, WordUtil.ContainsDigit("9")); Assert.AreEqual(true, WordUtil.ContainsDigit("rock7up8High Sky1")); Assert.AreEqual(false, WordUtil.ContainsDigit("rock up High Sky")); }