public void ShouldTellUsItCantHelpIfThereIsMoreThanOneSpace()
{
// Given some cells with actuals and some without
var cellsWithActuals = CreateCellsWithActuals(1, 2, 3, 4, 5, 6, 7);
var cellsWithout = new List<Cell> {new Cell(new CellId(-1, -1)), new Cell(new CellId(-1, -1))};
// When we pass all of them to the rule
var allCells = new List<Cell>();
allCells.AddRange(cellsWithActuals);
allCells.AddRange(cellsWithout);
var rule = new OnlyOneSpace();
var hint = rule.HelpWith(allCells);
// Then the rule should tell us that it can't help
Assert.AreEqual(Hint.None, hint);
}
public void ShouldProvideAHintIfTheNineCellsOnlyHaveOneSpace()
{
// Given eight cells with Actuals
var cellsWithActuals = CreateCellsWithActuals(1, 2, 3, 4, 5, 6, 7, 8);
// And one without
var cellWithout = new Cell(new CellId(-1, -1));
// When we pass all of them to the rule
var allCells = new List<Cell>();
allCells.AddRange(cellsWithActuals);
allCells.Add(cellWithout);
var rule = new OnlyOneSpace();
var hint = rule.HelpWith(allCells);
// Then the rule should give us back some text about the only empty cell having to be the 9,
// containing all 9 cells in the hint.
Assert.IsTrue(hint.Text.Contains("only one"));
Assert.IsTrue(hint.Text.Contains("9"));
CollectionAssert.AreEquivalent(hint.CellIds, allCells.Select(c => c.Id));
}