public void ExploreDifferentRowsOnce()
{
var minefield = Minefield.Empty(2, 3);
Minefield exploredMinefield = minefield.Explore(new Coordinates(0, 1));
Minefield furtherExploredMinefield = exploredMinefield.Explore(new Coordinates(1, 0));
Assert.AreEqual(true, furtherExploredMinefield.IsExplored(1, 0));
Assert.AreEqual(true, furtherExploredMinefield.IsExplored(0, 1));
}
public void ExploringARowTwiceWorks()
{
var minefield = Minefield.Empty(2, 3);
Minefield exploredMinefield = minefield.Explore(new Coordinates(0, 1));
Minefield furtherExploredMinefield = exploredMinefield.Explore(new Coordinates(0, 0));
Assert.AreEqual(true, furtherExploredMinefield.IsExplored(0, 0));
Assert.AreEqual(true, furtherExploredMinefield.IsExplored(0, 1));
}