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Stable JVM semconv implementation: threads
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Mateusz Rzeszutek
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Nov 10, 2023
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.../java/io/opentelemetry/instrumentation/runtimemetrics/java8/ThreadsStableSemconvTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
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| package io.opentelemetry.instrumentation.runtimemetrics.java8; | ||
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| import static io.opentelemetry.instrumentation.runtimemetrics.java8.ScopeUtil.EXPECTED_SCOPE; | ||
| import static io.opentelemetry.instrumentation.runtimemetrics.java8.Threads.JVM_THREAD_DAEMON; | ||
| import static io.opentelemetry.instrumentation.runtimemetrics.java8.Threads.JVM_THREAD_STATE; | ||
| import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.assertThat; | ||
| import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.equalTo; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.when; | ||
|
|
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| import io.opentelemetry.instrumentation.testing.internal.AutoCleanupExtension; | ||
| import io.opentelemetry.instrumentation.testing.junit.InstrumentationExtension; | ||
| import io.opentelemetry.instrumentation.testing.junit.LibraryInstrumentationExtension; | ||
| import java.lang.management.ThreadInfo; | ||
| import java.lang.management.ThreadMXBean; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.api.condition.EnabledForJreRange; | ||
| import org.junit.jupiter.api.condition.EnabledOnJre; | ||
| import org.junit.jupiter.api.condition.JRE; | ||
| import org.junit.jupiter.api.extension.ExtendWith; | ||
| import org.junit.jupiter.api.extension.RegisterExtension; | ||
| import org.mockito.Mock; | ||
| import org.mockito.invocation.InvocationOnMock; | ||
| import org.mockito.junit.jupiter.MockitoExtension; | ||
| import org.mockito.stubbing.Answer; | ||
|
|
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| @ExtendWith(MockitoExtension.class) | ||
| class ThreadsStableSemconvTest { | ||
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| @RegisterExtension | ||
| static final InstrumentationExtension testing = LibraryInstrumentationExtension.create(); | ||
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| @RegisterExtension static final AutoCleanupExtension cleanup = AutoCleanupExtension.create(); | ||
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| @Mock private ThreadMXBean threadBean; | ||
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| @Test | ||
| @EnabledOnJre(JRE.JAVA_8) | ||
| void registerObservers_Java8() { | ||
| when(threadBean.getThreadCount()).thenReturn(7); | ||
| when(threadBean.getDaemonThreadCount()).thenReturn(2); | ||
|
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| Threads.INSTANCE | ||
| .registerObservers(testing.getOpenTelemetry(), threadBean) | ||
| .forEach(cleanup::deferCleanup); | ||
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| testing.waitAndAssertMetrics( | ||
| "io.opentelemetry.runtime-telemetry-java8", | ||
| "jvm.thread.count", | ||
| metrics -> | ||
| metrics.anySatisfy( | ||
| metricData -> | ||
| assertThat(metricData) | ||
| .hasInstrumentationScope(EXPECTED_SCOPE) | ||
| .hasDescription("Number of executing platform threads.") | ||
| .hasUnit("{thread}") | ||
| .hasLongSumSatisfying( | ||
| sum -> | ||
| sum.isNotMonotonic() | ||
| .hasPointsSatisfying( | ||
| point -> | ||
| point | ||
| .hasValue(2) | ||
| .hasAttributesSatisfying( | ||
| equalTo(JVM_THREAD_DAEMON, true)), | ||
| point -> | ||
| point | ||
| .hasValue(5) | ||
| .hasAttributesSatisfying( | ||
| equalTo(JVM_THREAD_DAEMON, false)))))); | ||
| } | ||
|
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| @Test | ||
| @EnabledForJreRange(min = JRE.JAVA_9) | ||
| void registerObservers_Java9AndNewer() { | ||
| ThreadInfo threadInfo1 = | ||
| mock(ThreadInfo.class, new ThreadInfoAnswer(false, Thread.State.RUNNABLE)); | ||
| ThreadInfo threadInfo2 = | ||
| mock(ThreadInfo.class, new ThreadInfoAnswer(true, Thread.State.WAITING)); | ||
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| long[] threadIds = {12, 32, 42}; | ||
| when(threadBean.getAllThreadIds()).thenReturn(threadIds); | ||
| when(threadBean.getThreadInfo(threadIds)) | ||
| .thenReturn(new ThreadInfo[] {threadInfo1, null, threadInfo2}); | ||
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| Threads.INSTANCE | ||
| .registerObservers(testing.getOpenTelemetry(), threadBean) | ||
| .forEach(cleanup::deferCleanup); | ||
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| testing.waitAndAssertMetrics( | ||
| "io.opentelemetry.runtime-telemetry-java8", | ||
| "jvm.thread.count", | ||
| metrics -> | ||
| metrics.anySatisfy( | ||
| metricData -> | ||
| assertThat(metricData) | ||
| .hasInstrumentationScope(EXPECTED_SCOPE) | ||
| .hasDescription("Number of executing platform threads.") | ||
| .hasUnit("{thread}") | ||
| .hasLongSumSatisfying( | ||
| sum -> | ||
| sum.isNotMonotonic() | ||
| .hasPointsSatisfying( | ||
| point -> | ||
| point | ||
| .hasValue(1) | ||
| .hasAttributesSatisfying( | ||
| equalTo(JVM_THREAD_DAEMON, false), | ||
| equalTo(JVM_THREAD_STATE, "runnable")), | ||
| point -> | ||
| point | ||
| .hasValue(1) | ||
| .hasAttributesSatisfying( | ||
| equalTo(JVM_THREAD_DAEMON, true), | ||
| equalTo(JVM_THREAD_STATE, "waiting")))))); | ||
| } | ||
|
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| static final class ThreadInfoAnswer implements Answer<Object> { | ||
|
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| private final boolean isDaemon; | ||
| private final Thread.State state; | ||
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| ThreadInfoAnswer(boolean isDaemon, Thread.State state) { | ||
| this.isDaemon = isDaemon; | ||
| this.state = state; | ||
| } | ||
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| @Override | ||
| public Object answer(InvocationOnMock invocation) { | ||
| String methodName = invocation.getMethod().getName(); | ||
| if (methodName.equals("isDaemon")) { | ||
| return isDaemon; | ||
| } else if (methodName.equals("getThreadState")) { | ||
| return state; | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
| } |