public void LimitedAmountOfSpansShouldBeSent_WhenSpansAreCapturedConcurrently()
{
// Arrange
const int spansCount = 10;
const int maxSpansCount = 2;
var mockPayloadSender = new MockPayloadSender();
var mockConfig = new MockConfigSnapshot(transactionMaxSpans: maxSpansCount.ToString());
// Act
using (var agent = new ApmAgent(new TestAgentComponents(config: mockConfig, payloadSender: mockPayloadSender)))
{
agent.Tracer.CaptureTransaction("test transaction name", "test transaction type",
transaction =>
{
MultiThreadsTestUtils.TestOnThreads(spansCount, threadIndex =>
{
transaction.CaptureSpan($"test span name #{threadIndex}", "test span type", span => { });
return(1);
});
});
}
// Assert
mockPayloadSender.WaitForTransactions();
mockPayloadSender.Transactions.Count.Should().Be(1);
mockPayloadSender.WaitForSpans();
mockPayloadSender.Spans.Count.Should().Be(maxSpansCount);
mockPayloadSender.FirstTransaction.SpanCount.Dropped.Should().Be(spansCount - maxSpansCount);
}
internal void with_result_multiple_threads(string dbgWayToCallDesc, Func <LazyContextualInit <string>, Func <string>, string> wayToCall)
{
var counter = new ThreadSafeIntCounter();
var lazyCtxInit = new LazyContextualInit <string>();
var threadResults = MultiThreadsTestUtils.TestOnThreads(threadIndex => wayToCall(lazyCtxInit, () => counter.Increment().ToString()));
lazyCtxInit.IsInited.Should().BeTrue($"{nameof(dbgWayToCallDesc)}: {dbgWayToCallDesc}");
counter.Value.Should().Be(1);
threadResults.ForEach(x => x.Should().Be("1"));
}
internal void no_result_multiple_threads(string dbgWayToCallDesc, Func <LazyContextualInit, Action, bool> wayToCall)
{
var counter = new ThreadSafeIntCounter();
var lazyCtxInit = new LazyContextualInit();
var threadResults = MultiThreadsTestUtils.TestOnThreads(threadIndex => wayToCall(lazyCtxInit, () => counter.Increment()));
lazyCtxInit.IsInited.Should().BeTrue($"{nameof(dbgWayToCallDesc)}: {dbgWayToCallDesc}");
counter.Value.Should().Be(1);
threadResults.Where(isInitedByThisCall => isInitedByThisCall).Should().ContainSingle();
threadResults.Where(isInitedByThisCall => !isInitedByThisCall).Should().HaveCount(threadResults.Count - 1);
}
