public async void SaveAllTest()
        {
            // Arrange
            var mockLogManager           = new Mock <ILogManager>();
            var mockAuditEventRepository = new Mock <IAuditEventRepository>();
            var mockAuditEvents          = new List <IAuditEvent> {
                new Mock <IAuditEvent>().Object
            };

            // Setup mock methods/properties
            mockAuditEventRepository.Setup(x => x.SaveAllAsync(It.IsAny <IReadOnlyList <IAuditEvent> >()))
            .Returns(Task.FromResult(new SaveResponse <IReadOnlyList <IAuditEvent> > {
                Message = "Successful."
            }));

            // Act
            var sut = new AuditEventApplicationService(
                mockLogManager.Object, mockAuditEventRepository.Object);
            var response = await sut.SaveAllAsync(mockAuditEvents);

            // Assert
            response.IsSuccessful.Should().BeTrue();
            response.Errors.Count.Should().Be(0);
            response.Message.Should().NotBeNullOrEmpty();

            // Verify the application service is calling the correct repository method.
            mockAuditEventRepository.Verify(x => x.SaveAllAsync(It.IsAny <IReadOnlyList <IAuditEvent> >()));
        }
        public async void SaveAllErrorTest()
        {
            // Arrange
            var mockLogManager           = new Mock <ILogManager>();
            var mockAuditEventRepository = new Mock <IAuditEventRepository>();
            var mockAuditEvents          = new List <IAuditEvent> {
                new Mock <IAuditEvent>().Object
            };

            // Setup mock methods/properties
            mockAuditEventRepository.Setup(x => x.SaveAllAsync(It.IsAny <IReadOnlyList <IAuditEvent> >()))
            .Throws(new Exception());

            // Act
            var sut = new AuditEventApplicationService(
                mockLogManager.Object, mockAuditEventRepository.Object);
            var response = await sut.SaveAllAsync(mockAuditEvents);

            // Assert
            response.IsSuccessful.Should().BeFalse();
            response.Errors.Count.Should().BeGreaterThan(0);
            response.Message.Should().NotBeNullOrEmpty();

            // Verify the application service is calling the correct repository method.
            mockAuditEventRepository.Verify(x => x.SaveAllAsync(It.IsAny <IReadOnlyList <IAuditEvent> >()));

            // Verify the application service is logging the error.
            mockLogManager.Verify(x => x.LogError(It.IsAny <Exception>(), It.IsAny <string>()));
        }