public void Remove_OneMatch_ShouldDecrementNumberOfMatches()
        {
            MatchManager matchManager = new MatchManager();
            Match        match1       = new Match(Guid.NewGuid().ToString());
            Match        match2       = new Match(Guid.NewGuid().ToString());

            matchManager.Add(match1);
            matchManager.Add(match2);
            int countBeforeRemove = matchManager.Count;

            matchManager.Remove(match2.Id);

            Assert.Equal(countBeforeRemove - 1, matchManager.Count);
        }