public void TestWithPartialWordAgainstWestEdgeReturnNull()
        {
            Coordinate coordinate = new Coordinate(1, 1);
            string     word       = "EDJ";

            _searcher = new WordSearcher();

            Assert.IsNull(_searcher.CheckWest(_board, coordinate, word));
        }
        public void TestWithoutWordToTheWestReturnNull()
        {
            Coordinate coordinate = new Coordinate(1, 1);
            string     word       = "AB";

            _searcher = new WordSearcher();

            Assert.IsNull(_searcher.CheckWest(_board, coordinate, word));
        }
        public void TestWithCoordinateOnWestEdgeReturnNull()
        {
            Coordinate coordinate = new Coordinate(0, 1);
            string     word       = "DEB";

            _searcher = new WordSearcher();

            Assert.IsNull(_searcher.CheckWest(_board, coordinate, word));
        }
        public void TestWithWordToTheWestReturnCoordinates()
        {
            Coordinate coordinate = new Coordinate(1, 1);
            string     word       = "ED";

            _searcher = new WordSearcher();
            _results  = _searcher.CheckWest(_board, coordinate, word);

            Assert.AreEqual(2, _results.Count);
            Assert.AreEqual(1, _results[0].X);
            Assert.AreEqual(1, _results[0].Y);
            Assert.AreEqual(0, _results[1].X);
            Assert.AreEqual(1, _results[1].Y);
        }