public async Task CanIncrementCounter() {
var metrics = new InMemoryMetricsClient();
await metrics.CounterAsync("c1");
Assert.Equal(1, metrics.GetCount("c1"));
await metrics.CounterAsync("c1", 5);
Assert.Equal(6, metrics.GetCount("c1"));
var counter = metrics.Counters["c1"];
Assert.True(counter.Rate > 400);
await metrics.GaugeAsync("g1", 2.534);
Assert.Equal(2.534, metrics.GetGaugeValue("g1"));
await metrics.TimerAsync("t1", 50788);
var stats = metrics.GetMetricStats();
Assert.Equal(1, stats.Timings.Count);
metrics.DisplayStats(_writer);
}
public async void CanWaitForCounter() {
var metrics = new InMemoryMetricsClient();
metrics.StartDisplayingStats(TimeSpan.FromMilliseconds(50), _writer);
Task.Run(() => {
Thread.Sleep(50);
metrics.Counter("Test");
metrics.Counter("Test");
});
var success = await metrics.WaitForCounterAsync("Test", TimeSpan.FromMilliseconds(500), 2);
Assert.True(success);
Task.Run(() => {
Thread.Sleep(50);
metrics.Counter("Test");
});
success = await metrics.WaitForCounterAsync("Test", TimeSpan.FromMilliseconds(500));
Assert.True(success);
success = await metrics.WaitForCounterAsync("Test", TimeSpan.FromMilliseconds(100));
Assert.False(success);
Task.Run(() => {
Thread.Sleep(50);
metrics.Counter("Test", 2);
});
success = await metrics.WaitForCounterAsync("Test", TimeSpan.FromMilliseconds(500), 2);
Assert.True(success);
success = await metrics.WaitForCounterAsync("Test", () => metrics.CounterAsync("Test"), TimeSpan.FromMilliseconds(500));
Assert.True(success);
Task.Run(() => {
Thread.Sleep(50);
metrics.Counter("Test");
});
success = metrics.WaitForCounter("Test", TimeSpan.FromMilliseconds(500));
Assert.True(success);
metrics.DisplayStats(_writer);
}
public async Task CanWaitForCounter() {
var metrics = new InMemoryMetricsClient();
metrics.StartDisplayingStats(TimeSpan.FromMilliseconds(50), _writer);
Task.Run(async () => {
await Task.Delay(50);
await metrics.CounterAsync("Test");
await metrics.CounterAsync("Test");
});
var success = await metrics.WaitForCounterAsync("Test", 2, TimeSpan.FromMilliseconds(500));
Assert.True(success);
Task.Run(async () => {
await Task.Delay(50);
await metrics.CounterAsync("Test");
});
success = await metrics.WaitForCounterAsync("Test", timeout: TimeSpan.FromMilliseconds(500));
Assert.True(success);
success = await metrics.WaitForCounterAsync("Test", timeout: TimeSpan.FromMilliseconds(100));
Assert.False(success);
Task.Run(async () => {
await Task.Delay(50);
await metrics.CounterAsync("Test", 2);
});
success = await metrics.WaitForCounterAsync("Test", 2, TimeSpan.FromMilliseconds(500));
Assert.True(success);
success = await metrics.WaitForCounterAsync("Test", async () => await metrics.CounterAsync("Test"), cancellationToken: TimeSpan.FromMilliseconds(500).ToCancellationToken());
Assert.True(success);
Task.Run(async () => {
await Task.Delay(50);
await metrics.CounterAsync("Test");
});
success = await metrics.WaitForCounterAsync("Test", timeout: TimeSpan.FromMilliseconds(500));
Assert.True(success);
metrics.DisplayStats(_writer);
}
public async Task CanDisplayStatsMultithreaded() {
var metrics = new InMemoryMetricsClient();
metrics.StartDisplayingStats(TimeSpan.FromMilliseconds(10), _writer);
await Run.InParallel(100, async i => {
await metrics.CounterAsync("Test");
await Task.Delay(50);
});
}
public async Task MeasureWorkerThroughput() {
var queue = GetQueue(retries: 3, workItemTimeout: TimeSpan.FromSeconds(2), retryDelay: TimeSpan.FromSeconds(1));
if (queue == null)
return;
using (queue) {
await queue.DeleteQueueAsync();
const int workItemCount = 1;
for (int i = 0; i < workItemCount; i++) {
await queue.EnqueueAsync(new SimpleWorkItem {
Data = "Hello"
});
}
Assert.Equal(workItemCount, (await queue.GetQueueStatsAsync()).Queued);
var countdown = new AsyncCountdownEvent(workItemCount);
var metrics = new InMemoryMetricsClient();
await queue.StartWorkingAsync(async workItem => {
Assert.Equal("Hello", workItem.Value.Data);
await workItem.CompleteAsync();
await metrics.CounterAsync("work");
countdown.Signal();
});
await countdown.WaitAsync(TimeSpan.FromMinutes(1));
Assert.Equal(0, countdown.CurrentCount);
_logger.Trace((await metrics.GetCounterStatsAsync("work")).ToString());
var stats = await queue.GetQueueStatsAsync();
Assert.Equal(workItemCount, stats.Dequeued);
Assert.Equal(workItemCount, stats.Completed);
Assert.Equal(0, stats.Queued);
_logger.Trace("# Keys: {0}", CountAllKeysAsync());
}
}
public async Task MeasureThroughput() {
var queue = GetQueue(retries: 3, workItemTimeout: TimeSpan.FromSeconds(2), retryDelay: TimeSpan.FromSeconds(1));
if (queue == null)
return;
using (queue) {
await queue.DeleteQueueAsync();
const int workItemCount = 1000;
for (int i = 0; i < workItemCount; i++) {
await queue.EnqueueAsync(new SimpleWorkItem {
Data = "Hello"
});
}
Assert.Equal(workItemCount, (await queue.GetQueueStatsAsync()).Queued);
var metrics = new InMemoryMetricsClient();
var workItem = await queue.DequeueAsync(TimeSpan.Zero);
while (workItem != null) {
Assert.Equal("Hello", workItem.Value.Data);
await workItem.CompleteAsync();
await metrics.CounterAsync("work");
workItem = await queue.DequeueAsync(TimeSpan.Zero);
}
_logger.Trace((await metrics.GetCounterStatsAsync("work")).ToString());
var stats = await queue.GetQueueStatsAsync();
Assert.Equal(workItemCount, stats.Dequeued);
Assert.Equal(workItemCount, stats.Completed);
Assert.Equal(0, stats.Queued);
_logger.Trace("# Keys: {0}", CountAllKeysAsync());
}
}
public async Task CanSendMultiple() {
const int iterations = 100000;
await StartListeningAsync(iterations);
var metrics = new InMemoryMetricsClient();
var sw = Stopwatch.StartNew();
for (int index = 0; index < iterations; index++) {
if (index % (iterations / 10) == 0)
StopListening();
await _client.CounterAsync("counter");
await metrics.CounterAsync("counter");
if (index % (iterations / 10) == 0)
await StartListeningAsync(iterations - index);
if (index % (iterations / 20) == 0)
metrics.DisplayStats(_writer);
}
sw.Stop();
metrics.DisplayStats(_writer);
// Require at least 10,000 operations/s
Assert.InRange(sw.ElapsedMilliseconds, 0, (iterations / 10000.0) * 1000);
await Task.Delay(250);
var messages = GetMessages();
int expected = iterations - (iterations / (iterations / 10));
Assert.InRange(messages.Count, expected - 10, expected + 10);
foreach (string message in messages)
Assert.Equal("test.counter:1|c", message);
}
public async Task MeasureThroughputWithRandomFailures() {
var queue = GetQueue(retries: 3, workItemTimeout: TimeSpan.FromSeconds(2), retryDelay: TimeSpan.Zero);
if (queue == null)
return;
FlushAll();
using (queue) {
await queue.DeleteQueueAsync();
const int workItemCount = 1000;
for (int i = 0; i < workItemCount; i++) {
await queue.EnqueueAsync(new SimpleWorkItem {
Data = "Hello"
});
}
Assert.Equal(workItemCount, (await queue.GetQueueStatsAsync()).Queued);
var metrics = new InMemoryMetricsClient();
var workItem = await queue.DequeueAsync(TimeSpan.Zero);
while (workItem != null) {
Assert.Equal("Hello", workItem.Value.Data);
if (RandomData.GetBool(10))
await workItem.AbandonAsync();
else
await workItem.CompleteAsync();
await metrics.CounterAsync("work");
workItem = await queue.DequeueAsync(TimeSpan.FromMilliseconds(100));
}
metrics.DisplayStats(_writer);
var stats = await queue.GetQueueStatsAsync();
Assert.True(stats.Dequeued >= workItemCount);
Assert.Equal(workItemCount, stats.Completed + stats.Deadletter);
Assert.Equal(0, stats.Queued);
Trace.WriteLine(CountAllKeys());
}
}
