public void CheckContainsTest() { var result = ExpressionUtils.CheckContains("", ""); Assert.False(result); result = ExpressionUtils.CheckContains(null, ""); Assert.False(result); result = ExpressionUtils.CheckContains("4", "1,2,3,4,5"); Assert.True(result); result = ExpressionUtils.CheckContains("6", "1,2,3,4,5"); Assert.False(result); }