public void TestHideTilesAndShuffleRandomiseTilesWithoutAddingOrRemoving()
{
PairsGameViewModel vm = new PairsGameViewModel(dependencyService);
int tilesCount = vm.PairsTileItems.Count;
vm.HideExistingTilesAndShuffle();
Assert.AreEqual(tilesCount, vm.PairsTileItems.Count);
}
public void TestHideTilesAndShuffleHidesTiles()
{
PairsGameViewModel vm = new PairsGameViewModel(dependencyService);
vm.PairsTileItems[5].FrontShown = true;
vm.RandomNumberGenerator = x => 0; //change the random generator to not move tiles.
vm.HideExistingTilesAndShuffle();
Assert.IsFalse(vm.PairsTileItems[5].FrontShown);
}