public void Search_Horizontal(string word)
{
// Arrange
List <XY> expectedPoints = new List <XY>
{
new XY(0, 5),
new XY(1, 5),
new XY(2, 5),
new XY(3, 5),
new XY(4, 5),
new XY(5, 5)
};
// Act
WordSearch wordSearch = new WordSearch(GetMatrix());
List <XY> actualPoints = wordSearch.HorizontalSearch(word);
XYComparer xYComparer = new XYComparer();
// Assert
CollectionAssert.AreEqual(expectedPoints, actualPoints, xYComparer);
}