public void ReturnTeamsInOrderOfGoalDifference()
{
//arrange
List <MatchResult> matchResults = MatchResultsFixtures.GetChampionByGoalDifference();
var mockResultsRepository = new Mock <IMatchResultsRepository>();
mockResultsRepository.Setup(r => r.GetAll()).Returns(matchResults);
//act
var leagueTable = new LeagueTable(mockResultsRepository.Object);
//assert
Assert.AreEqual("Liverpool", leagueTable.GetWinningTeamName());
}
