public async Task Only_logs_when_completed(Uri uri, HttpStatusCode statusCode, bool throwException, bool isCompleted, bool isFaulted, bool isCanceled)
{
// setup
var resetEvent = new ManualResetEvent(false);
Action<MeasurementDetails> logFunc = details =>
{
// validate
details.Request.Method.Method.Should().Be("GET");
details.Request.RequestUri.Should().Be(uri);
details.SendTask.IsCompleted.Should().Be(isCompleted);
details.SendTask.IsFaulted.Should().Be(isFaulted);
details.SendTask.IsCanceled.Should().Be(isCanceled);
if (!throwException)
{
details.SendTask.Result.StatusCode.Should().Be(statusCode);
}
resetEvent.Set();
};
var handler = new MeasurementHandler(null, new TestHandler(TimeSpan.FromMilliseconds(100), statusCode, throwException), logFunc);
var client = new HttpClient(handler);
// execute
try
{
await client.GetAsync(uri);
}
catch (Exception)
{
if (!throwException) throw;
}
// wait until the validation has completed (but limit to max 1 second to avoid waiting forever)
bool awaited = resetEvent.WaitOne(TimeSpan.FromSeconds(1));
awaited.Should().BeTrue();
}
public async Task Does_not_await_completion_of_log_function()
{
// setup
var resetEvent = new ManualResetEvent(false);
var hasLogged = false;
Action<MeasurementDetails> logFunc = async details =>
{
// validate
await Task.Delay(100);
hasLogged = true;
resetEvent.Set();
};
var expectedResult = Guid.NewGuid().ToString();
var handler = new MeasurementHandler(null, new TestHandler(TimeSpan.FromMilliseconds(100), HttpStatusCode.OK, false, expectedResult), logFunc);
var client = new HttpClient(handler);
// execute
var result = await client.GetStringAsync("http://unit.test");
// validate that the string was retrieved, but the logger hasn't completed yet
result.ShouldBeEquivalentTo(expectedResult);
hasLogged.Should().BeFalse();
// ensure logging eventually happened
resetEvent.WaitOne(TimeSpan.FromSeconds(1));
hasLogged.Should().BeTrue();
}