public async Task Can_subscribe_to_diagnostic_source()
{
using var instrumentation =
new DiagnosticSourceInstrumentation(_ => _observer, l => l.Name == "TestSource", null);
await instrumentation.StartAsync(CancellationToken.None);
TestSource.Write("TestEvent", new TestEvent());
_events.Count.ShouldBe(1);
_events.Find(kvp => kvp.Key == "TestEvent").Value.ShouldNotBeNull();
}
public async Task Can_subscribe_with_filter()
{
using var instrumentation =
new DiagnosticSourceInstrumentation(
_ => _observer,
l => l.Name == "TestSource",
(eventType, _, _) => eventType == "SpecialEvent");
await instrumentation.StartAsync(CancellationToken.None);
if (TestSource.IsEnabled("TestEvent"))
{
TestSource.Write("TestEvent", new TestEvent());
}
if (TestSource.IsEnabled("SpecialEvent"))
{
TestSource.Write("SpecialEvent", new TestEvent());
}
_events.Count.ShouldBe(1);
}