public async Task <IDashboard> BuildAsync(IDashboardSettings dashboardSettings)
{
if (dashboardSettings == null)
{
throw new ArgumentNullException(nameof(dashboardSettings));
}
IDashboard dashboard = new Dashboard();
try
{
Task[] dashboardContentBuilderTasks = _dashboardContentBuilderCollection
.Where(dashboardContentBuilder => dashboardContentBuilder.ShouldBuild(dashboardSettings))
.Select(dashboardContentBuilder => dashboardContentBuilder.BuildAsync(dashboardSettings, dashboard))
.ToArray();
await Task.WhenAll(dashboardContentBuilderTasks);
}
catch (AggregateException ex)
{
await _exceptionHandler.HandleAsync(ex);
}
catch (Exception ex)
{
await _exceptionHandler.HandleAsync(ex);
}
finally
{
dashboard.Replace(dashboardSettings);
IEnumerable <ISystemError> systemErrors = await _systemErrorLogic.GetSystemErrorsAsync();
dashboard.Replace(systemErrors.OrderByDescending(systemError => systemError.Timestamp));
}
return(dashboard);
}
public async Task GetSystemErrorsAsync_WhenCalled_AssertGetSystemErrorsAsyncWasCalledOnExceptionRepository()
{
ISystemErrorLogic sut = CreateSut();
await sut.GetSystemErrorsAsync();
_exceptionRepositoryMock.Verify(m => m.GetSystemErrorsAsync(), Times.Once);
}
public async Task GetSystemErrorsAsync_WhenCalled_ExpectNoError()
{
ISystemErrorLogic sut = CreateSut();
await sut.GetSystemErrorsAsync();
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.IsAny <Exception>()), Times.Never);
}
public async Task GetSystemErrorsAsync_WhenCalledAndExceptionOccurs_AssertHandleAsyncWasCalledOnExceptionHandler()
{
Exception exception = new Exception();
ISystemErrorLogic sut = CreateSut(provokedException: exception);
await sut.GetSystemErrorsAsync();
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.Is <Exception>(ex => ex == exception)), Times.Once);
}
public async Task GetSystemErrorsAsync_WhenCalledAndGetSystemErrorsAsyncOnExceptionRepositoryReturnsNull_ReturnsEmptyCollection()
{
ISystemErrorLogic sut = CreateSut(getSystemErrorsAsyncReturnsNull: true);
IEnumerable <ISystemError> result = await sut.GetSystemErrorsAsync();
Assert.IsNotNull(result);
Assert.IsFalse(result.Any());
}
public async Task GetSystemErrorsAsync_WhenCalledAndExceptionOccurs_ReturnsEmptyCollection()
{
Exception exception = new Exception();
ISystemErrorLogic sut = CreateSut(provokedException: exception);
IEnumerable <ISystemError> result = await sut.GetSystemErrorsAsync();
Assert.IsNotNull(result);
Assert.IsFalse(result.Any());
}
public async Task GetSystemErrorsAsync_WhenCalledAndGetSystemErrorsAsyncOnExceptionRepositoryReturnsEmptyCollection_ReturnsEmptyCollection()
{
IEnumerable <ISystemError> systemErrors = BuildSystemErrors(numberOfSystemErrors: 0);
ISystemErrorLogic sut = CreateSut(systemErrors: systemErrors);
IEnumerable <ISystemError> result = await sut.GetSystemErrorsAsync();
Assert.IsNotNull(result);
Assert.IsFalse(result.Any());
}
public async Task GetSystemErrorsAsync_WhenCalledAndGetSystemErrorsAsyncOnExceptionRepositoryReturnsCollection_ReturnsEmptyCollection()
{
IEnumerable <ISystemError> systemErrors = BuildSystemErrors(numberOfSystemErrors: 100);
ISystemErrorLogic sut = CreateSut(systemErrors: systemErrors);
IEnumerable <ISystemError> result = await sut.GetSystemErrorsAsync();
Assert.IsNotNull(result);
Assert.AreEqual(100, result.Count());
Assert.IsTrue(result.All(systemError => systemErrors.Contains(systemError)));
}