public void TestBasics()
{
SodokuItem row = new SodokuItem();
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());
}
public void TestAddReplaceContent()
{
SodokuItem column = new SodokuItem();
column[0] = new CellContent(9);
Assert.IsFalse(column.IsEmpty);
Assert.AreEqual(1, column.ContentCount);
column[1] = new CellContent(8);
Assert.ThrowsException <ArgumentException>(() => column[2] = new CellContent(9));
Assert.AreEqual(2, column.ContentCount);
column.ClearCell(1);
Assert.AreEqual(1, column.ContentCount);
column[1] = new CellContent(8);
column[2] = new CellContent(7);
Assert.ThrowsException <InvalidOperationException>(() => column.InsertItem(new CellContent(6), 2));
List <int> ranks = column.AvailableRanks();
Assert.AreEqual(6, ranks.Count);
Assert.AreEqual(1, ranks[0]);
Assert.AreEqual(2, ranks[1]);
Assert.AreEqual(6, ranks[5]);
column[3] = new CellContent(6);
column[4] = new CellContent(5);
column[5] = new CellContent(4);
column[6] = new CellContent(3);
column[7] = new CellContent(2);
Assert.AreEqual(8, column.ContentCount);
ranks = column.AvailableRanks();
Assert.AreEqual(1, ranks.Count);
Assert.AreEqual(1, ranks[0]);
column[8] = new CellContent(1);
Assert.IsTrue(column.IsFull);
Assert.IsTrue(column.Validate());
//Assert.ThrowsException<InvalidOperationException>(() => column.InsertItem(new CellContent(9), 5) );
}