public void Search_HorizontalReverse(string word) { // Arrange List <XY> expectedPoints = new List <XY> { new XY(4, 7), new XY(3, 7), new XY(2, 7), new XY(1, 7) }; // Act WordSearch wordSearch = new WordSearch(GetMatrix()); var actualPoints = wordSearch.HorizontalReverseSearch(word); XYComparer xYComparer = new XYComparer(); // Assert CollectionAssert.AreEqual(expectedPoints, actualPoints, xYComparer); }