public void Test_UniformGrid_GetFreeSpots_Basic() { var testRef = new TakenSpotsReferenceHolder(new bool[4, 5] { { false, true, false, true, false }, { false, true, true, true, false }, { false, true, false, true, false }, { false, false, true, false, false }, }); var results = UniformGrid.GetFreeSpot(testRef, 0, false).ToArray(); var expected = new (int row, int column)[]