public void ResponseSizeTask_updates_minimum()
{
var fixture = new Fixture();
var fakeMetric = fixture.Build <ResponseSizeTask.ResponseSize>().With(x => x.MinimumSize, 200).Create();
var storage = new ApplicationStorageMock();
storage.Set(nameof(ResponseSizeTask), fakeMetric);
var context = Substitute.For <IMetricTaskContext>();
context.ApplicationStorage.Returns(storage);
var dummyStream = new DummyStream();
dummyStream.SetLength(100);
context.HttpContext.Response.Filter.Returns(dummyStream);
var task = new ResponseSizeTask(context);
//Act
task.EndRequest();
//Assert
storage.Get <ResponseSizeTask.ResponseSize>(nameof(ResponseSizeTask)).MinimumSize.Should().Be(100);
}
public void ResponseSizeTask_correctly_calculates_average()
{
var storage = new ApplicationStorageMock();
var context = Substitute.For <IMetricTaskContext>();
context.ApplicationStorage.Returns(storage);
var dummyStream = new DummyStream();
context.HttpContext.Response.Filter.Returns(dummyStream);
var fixture = new Fixture();
var requests = fixture.CreateMany <long>().ToList();
var task = new ResponseSizeTask(context);
//Act
foreach (var r in requests)
{
dummyStream.SetLength(r);
task.EndRequest();
}
//Assert
var correctAvg = requests.Sum() / (double)requests.Count;
var assertAverage = storage.Get <ResponseSizeTask.ResponseSize>(nameof(ResponseSizeTask)).AverageSize;
assertAverage.Should().Be(correctAvg);
}
public void ResponseSizeTask_creates_response_size()
{
var storage = new ApplicationStorageMock();
var context = Substitute.For <IMetricTaskContext>();
context.ApplicationStorage.Returns(storage);
var dummyStream = new DummyStream();
dummyStream.SetLength(100);
context.HttpContext.Response.Filter.Returns(dummyStream);
var task = new ResponseSizeTask(context);
//Act
task.EndRequest();
//Assert
storage.Get <ResponseSizeTask.ResponseSize>(nameof(ResponseSizeTask)).Should()
.BeOfType <ResponseSizeTask.ResponseSize>();
}
public void EndRequest_should_add_request_size()
{
var dummyBytes = System.Text.Encoding.UTF8.GetBytes("Hello World");
var fakeStream = new MemoryStream(dummyBytes);
var context = Substitute.For <IMetricTaskContext>();
context.HttpContext.Response.Filter.Returns(fakeStream);
var metricsResponse = Substitute.For <IMetricsResponse>();
context.MetricsResponse.Returns(metricsResponse);
var task = new ResponseSizeTask(context);
//Act
task.EndRequest();
//Assert
metricsResponse.Received()
.AddMetric(Arg.Is("response-size"), Arg.Any <string>(), dummyBytes.Length, Arg.Any <MetricType>());
}