public void ExceptionInAttach_Throws()
{
var source = new FailureMetricSource(throwOnAttach: true);
var collector = new MetricsCollector(
new MetricsCollectorOptions
{
Endpoints = new[] { new MetricEndpoint("Local", new LocalMetricHandler()), },
Sources = new[] { source },
RetryInterval = TimeSpan.Zero,
SnapshotInterval = TimeSpan.FromMilliseconds(20),
}
);
Assert.Throws <Exception>(() => collector.Start());
}
public async Task MetricSourcesAreAttachedAndDetached()
{
var metricSource = new TestMetricSource();
var collector = new MetricsCollector(
new MetricsCollectorOptions
{
Endpoints = new []
{
new MetricEndpoint("Local", new LocalMetricHandler()),
},
Sources = new[] { metricSource },
RetryInterval = TimeSpan.Zero,
SnapshotInterval = TimeSpan.FromMilliseconds(20),
}
);
collector.Start();
try
{
// make sure initialization happened
await Task.WhenAny(metricSource.AttachTask, Task.Delay(1000));
Assert.True(metricSource.AttachTask.IsCompleted, "Metric source was not attached");
// make sure we got snapshotted
await Task.WhenAny(metricSource.SnapshotTask, Task.Delay(30000));
Assert.True(metricSource.SnapshotTask.IsCompleted, "Metric source was not snapshotted");
}
finally
{
collector.Stop();
// make sure we got detached
await Task.WhenAny(metricSource.DetachTask, Task.Delay(1000));
Assert.True(metricSource.DetachTask.IsCompleted, "Metric source was not detached");
}
}
