public async Task TryRemoveAsync_ShouldCallInner_AndReturnResult_WhenIdIsGiven(bool handlerReturnValue)
        {
            // Arrange
            const int id             = 5;
            var       expectedResult = true;
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.TryRemoveAsync(id))
            .ReturnsAsync(expectedResult);

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(handlerReturnValue);
            });

            // Act
            var actualResult = await subject.TryRemoveAsync(id).ConfigureAwait(false);

            // Assert
            actualResult.Should().Be(expectedResult);
            actualException.Should().BeNull();

            _mockInner.VerifyAll();
        }
        public async Task TryRemoveAsync_ShouldInvokeHandler_AndReturnResult_WhenEntityIsGiven_AndInnerThrowsException_AndHandlerReturnsTrue()
        {
            // Arrange
            var entity = new FakeEntity <int> {
                Id = 5
            };
            var expectedException = new InvalidOperationException();
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.TryRemoveAsync(entity))
            .ThrowsAsync(expectedException);

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(true);
            });

            // Act
            var actualResult = await subject.TryRemoveAsync(entity).ConfigureAwait(false);

            // Assert
            actualResult.Should().BeFalse();
            actualException.Should().BeSameAs(expectedException);

            _mockInner.VerifyAll();
        }
        public void AddAsync_ShouldInvokeHandler_AndRethrow_WhenInnerThrowsException_AndHandlerReturnsFalse()
        {
            // Arrange
            var entity = new FakeEntity <int> {
                Id = 5
            };
            var expectedException = new InvalidOperationException();
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.AddAsync(entity))
            .ThrowsAsync(expectedException);

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(false);
            });

            // Act
            Func <Task> action = async() => await subject.AddAsync(entity).ConfigureAwait(false);

            // Assert
            action.Should().Throw <InvalidOperationException>();
            actualException.Should().BeSameAs(expectedException);

            _mockInner.VerifyAll();
        }
        public void TryRemoveAsync_ShouldNotCatchException_WhenEntityIsGiven_AndInnerThrowsException_AndTypeIsWrong(bool handlerReturnValue)
        {
            // Arrange
            var entity = new FakeEntity <int> {
                Id = 5
            };
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.TryRemoveAsync(entity))
            .ThrowsAsync(new Exception());

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(handlerReturnValue);
            });

            // Act
            Func <Task> action = async() => await subject.TryRemoveAsync(entity).ConfigureAwait(false);

            // Assert
            action.Should().Throw <Exception>();
            actualException.Should().BeNull();

            _mockInner.VerifyAll();
        }
        public async Task RemoveAsync_ShouldCallInner_WhenEntityIsGiven(bool handlerReturnValue)
        {
            // Arrange
            var entity = new FakeEntity <int> {
                Id = 5
            };
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.RemoveAsync(entity))
            .Returns(TaskHelpers.CompletedTask);

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(handlerReturnValue);
            });

            // Act
            await subject.RemoveAsync(entity).ConfigureAwait(false);

            // Assert
            actualException.Should().BeNull();
            _mockInner.VerifyAll();
        }
        public async Task RemoveAsync_ShouldInvokeHandler_WhenIdIsGiven_AndInnerThrowsException_AndHandlerReturnsTrue()
        {
            // Arrange
            const int id = 5;
            var       expectedException = new InvalidOperationException();
            InvalidOperationException actualException = null;

            _mockInner
            .Setup(i => i.RemoveAsync(id))
            .ThrowsAsync(expectedException);

            var subject = new AsyncCommandServiceExceptionHandler <FakeEntity <int>, int, InvalidOperationException>(_mockInner.Object, ex =>
            {
                actualException = ex;
                return(true);
            });

            // Act
            await subject.RemoveAsync(id).ConfigureAwait(false);

            // Assert
            actualException.Should().BeSameAs(expectedException);
            _mockInner.VerifyAll();
        }