public async void ReturnTeamWhichExistsInDbByGivenId()
        {
            // Arrange
            var team = new Team()
            {
                Id        = 1,
                FullName  = "Manchester United Football Club",
                ShortName = "Manchester United",
                City      = "Stretford",
                CreatedAt = 1878,
                Coach     = "Ole Gunnar Solskjær"
            };

            TeamDTO testTeam = null;

            _repositoryMock.Reset();
            _repositoryMock.Setup(r => r.GetByIdAsync(It.IsAny <uint>())).ThrowsAsync(new ArgumentException());
            _repositoryMock.Setup(r => r.GetByIdAsync(1)).ReturnsAsync(team);

            var expectedTeam = _mapper.Map <TeamDTO>(team);

            // Act
            var err = await Record.ExceptionAsync(async
                                                      () => testTeam = await _service.GetByIdAsync(1));

            // Assert
            err.Should().BeNull();

            testTeam.Should().NotBeNull();

            testTeam.Should().BeEquivalentTo(expectedTeam);
        }
        public async void ReturnNullWhenTeamDoNotExistsInDbByGivenId()
        {
            // Arrange
            TeamDTO testTeam = null;

            _repositoryMock.Reset();
            _repositoryMock.Setup(r => r.GetByIdAsync(It.IsAny <uint>())).ReturnsAsync((Team)null);

            // Act
            var err = await Record.ExceptionAsync(async
                                                      () => testTeam = await _service.GetByIdAsync(1));

            // Assert
            err.Should().BeNull();

            testTeam.Should().BeNull();
        }