public void ProcessEvent_IgnoresUnprocessableEvents()
{
var option = new TraceEndpointOptions();
var obs = new TraceDiagnosticObserver(option);
// No current activity, event ignored
obs.ProcessEvent("foobar", null);
var current = new Activity("barfoo");
current.Start();
// Activity current, but no value provided, event ignored
obs.ProcessEvent("foobar", null);
// Activity current, value provided, event not stop event, event is ignored
obs.ProcessEvent("foobar", new object());
// Activity current, event is stop event, no context in event value, event it ignored
obs.ProcessEvent("Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop", new object());
Assert.Empty(obs._queue);
current.Stop();
}
public void ProcessEvent_HonorsCapacity()
{
var option = new TraceEndpointOptions();
var obs = new TraceDiagnosticObserver(option);
var current = new Activity("Microsoft.AspNetCore.Hosting.HttpRequestIn");
current.Start();
for (var i = 0; i < 200; i++)
{
var context = CreateRequest();
obs.ProcessEvent("Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop", new { HttpContext = context });
}
Assert.Equal(option.Capacity, obs._queue.Count);
}
public void ProcessEvent_AddsToQueue()
{
var option = new TraceEndpointOptions();
var obs = new TraceDiagnosticObserver(option);
var current = new Activity("Microsoft.AspNetCore.Hosting.HttpRequestIn");
current.Start();
var context = CreateRequest();
obs.ProcessEvent("Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop", new { HttpContext = context });
Assert.Single(obs._queue);
Assert.True(obs._queue.TryPeek(out var result));
Assert.NotNull(result.Info);
Assert.NotEqual(0, result.TimeStamp);
Assert.True(result.Info.ContainsKey("method"));
Assert.True(result.Info.ContainsKey("path"));
Assert.True(result.Info.ContainsKey("headers"));
Assert.True(result.Info.ContainsKey("timeTaken"));
Assert.Equal("GET", result.Info["method"]);
Assert.Equal("/myPath", result.Info["path"]);
var headers = result.Info["headers"] as Dictionary <string, object>;
Assert.NotNull(headers);
Assert.True(headers.ContainsKey("request"));
Assert.True(headers.ContainsKey("response"));
var timeTaken = result.Info["timeTaken"] as string;
Assert.NotNull(timeTaken);
Assert.Equal("0", timeTaken); // 0 because activity not stopped
current.Stop();
}
public void GetTraces_ReturnsTraces()
{
var listener = new DiagnosticListener("test");
var option = new TraceEndpointOptions();
var obs = new TraceDiagnosticObserver(option);
var current = new Activity("Microsoft.AspNetCore.Hosting.HttpRequestIn");
current.Start();
for (var i = 0; i < 200; i++)
{
var context = CreateRequest();
obs.ProcessEvent("Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop", new { HttpContext = context });
}
Assert.Equal(option.Capacity, obs._queue.Count);
var traces = obs.GetTraces();
Assert.Equal(option.Capacity, traces.Count);
Assert.Equal(option.Capacity, obs._queue.Count);
listener.Dispose();
}