public void WriteDecimal_ValidDecimal_WritesToDocument() { IniDocument document = new FakeIniDocument(); document.WriteDecimal("Section", "decimal", -99.999m); document.Save(Arg.Any <string>()); var expected = "[Section]\r\ndecimal=-99.999\r\n\r\n"; var actual = ((FakeIniDocument)document).SavedIni; Assert.AreEqual(expected, actual); }