public void TestSetCell()
{
SpreadsheetViewStub stub = new SpreadsheetViewStub();
Controller controller = new Controller(stub);
stub.SetCell(3, 4, "10");
Assert.IsTrue(stub.CalledSetCell);
Assert.AreEqual(stub.Col, 3);
Assert.AreEqual(stub.Row, 4);
Assert.AreEqual(stub.CellContent, "10");
}