public void TestBasics() { SudokuItem row = new SudokuItem(); Assert.IsTrue(row.IsEmpty); Assert.AreEqual(9, row.EmptyCount); Assert.AreEqual(0, row.ContentCount); Assert.IsTrue(row.HasContent(new CellContent(0))); Assert.IsFalse(row.HasContent(new CellContent(1))); Assert.IsTrue(row.Validate()); }