public void CheckComplaintMessage() { string emptyString = ""; string blockedReason = "Test block"; bool success = blocks.CheckComplaintMessage(ref blockedReason, ref message); bool empty = blocks.CheckComplaintMessage(ref emptyString, ref message); emptyString = null; bool nullable = blocks.CheckComplaintMessage(ref emptyString, ref message); while (blockedReason.Length < 100) { blockedReason += blockedReason; } bool moreCharacters = blocks.CheckComplaintMessage(ref blockedReason, ref message); Assert.AreEqual(success, true); Assert.AreEqual(empty, false); Assert.AreEqual(nullable, false); Assert.AreEqual(moreCharacters, false); }