public void RunAsync_NoProcessesToRun_NoExceptions()
{
// arrange
var sut = new ParallelProcess();
// act + assert
sut.Invoking(async process => await process.RunAsync(CancellationToken.None))
.Should().NotThrow();
}
public void RunAsync_ManyProcessesThrows_ThrowsAggregateExceptionForProcesses(int processCount)
{
// arrange
var counter = 0;
_fixture.Register(() =>
{
var processId = Interlocked.Increment(ref counter);
var expectedException = new Exception($"I'm failing You, I'm so sorry. Process id: {processId}.");
var process = A.Fake <IProcess>();
A.CallTo(() => process.RunAsync(CancellationToken.None)).Returns(Task.FromException(expectedException));
return(process);
});
var processes = _fixture.CreateMany <IProcess>(processCount);
var sut = new ParallelProcess(processes);
// act + assert
sut.Invoking(async x => await x.RunAsync(CancellationToken.None))
.Should().Throw <AggregateException>().Where(ex => ex.InnerExceptions.Count == processCount);
}