public void WriteUInt_ValidUInt_WritesToDocument() { IniDocument document = new FakeIniDocument(); document.WriteUInt("Section", "uint", 4294967295); document.Save(Arg.Any <string>()); var expected = "[Section]\r\nuint=4294967295\r\n\r\n"; var actual = ((FakeIniDocument)document).SavedIni; Assert.AreEqual(expected, actual); }