Error "java.lang.AssertionError: Unexpected start event()" from Courgette on build command

Hi Prashant, When I run my tests every tests runs and finishes with results logged in the courgette index.html report - ie if i have 20 test running with 3 threads, all run and finish with appropriate outcomes and results. However, the build always terminates with an error coming from the Courgette runner itself

xml output form dir -> build/test-results/test/TEST-.xml

<?xml version="1.0" encoding="UTF-8"?> <testsuite name="" tests="1" skipped="0" failures="1" errors="0" timestamp="2020-02-28T05:01:11" hostname="XXXXXXX" time="0.0"> <properties/> <testcase name="" classname="" time="0.0"> <failure message="java.lang.AssertionError: Unexpected start event for ()" type="java.lang.AssertionError">java.lang.AssertionError: Unexpected start event for () at org.gradle.api.internal.tasks.testing.junit.JUnitTestEventAdapter.testStarted(JUnitTestEventAdapter.java:58) at org.junit.runner.notification.SynchronizedRunListener.testStarted(SynchronizedRunListener.java:80) at org.junit.runner.notification.RunNotifier$5.notifyListener(RunNotifier.java:156) at org.junit.runner.notification.RunNotifier$SafeNotifier.run(RunNotifier.java:72) at org.junit.runner.notification.RunNotifier.fireTestStarted(RunNotifier.java:153) at java.util.HashMap$Values.forEach(HashMap.java:981) at courgette.runtime.junit.CourgetteJUnitRunner.notifyTestStarted(CourgetteJUnitRunner.java:70) at courgette.api.junit.Courgette.run(Courgette.java:67) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:110) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:38) at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:62) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy2.processTestClass(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:175) at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:157) at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55) at java.lang.Thread.run(Thread.java:748) </failure> </testcase> <system-out><![CDATA[]]></system-out> <system-err><![CDATA[]]></system-err> </testsuite>

Output from console/terminal: `Unexpected start event for () java.lang.AssertionError: Unexpected start event for () at org.gradle.api.internal.tasks.testing.junit.JUnitTestEventAdapter.testStarted(JUnitTestEventAdapter.java:58) at org.junit.runner.notification.SynchronizedRunListener.testStarted(SynchronizedRunListener.java:80) at org.junit.runner.notification.RunNotifier$5.notifyListener(RunNotifier.java:156) at org.junit.runner.notification.RunNotifier$SafeNotifier.run(RunNotifier.java:72) at org.junit.runner.notification.RunNotifier.fireTestStarted(RunNotifier.java:153) at java.util.HashMap$Values.forEach(HashMap.java:981) at courgette.runtime.junit.CourgetteJUnitRunner.notifyTestStarted(CourgetteJUnitRunner.java:70) at courgette.api.junit.Courgette.run(Courgette.java:67) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:110) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:38) at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:62) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy2.processTestClass(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:175) at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:157) at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55) at java.lang.Thread.run(Thread.java:748)

com.diff.CourgetteTestRunner > . FAILED java.lang.AssertionError 1 test completed, 1 failed

Task :courgetteTestRunner FAILED FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ‘:courgetteTestRunner’.

There were failing tests. See the report at: file://XXXXXXXXXXXXXXX

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
• Get more help at https://help.gradle.org BUILD FAILED in 6m 24s`

[prashant-ramcharan]

I cannot seem to reproduce this error @bill2605

Courgette includes JUnit 4.12 so can you try removing JUnit 4.13 dep from your build.gradle and let me know if you get the same result?

[prashant-ramcharan]

Thanks for that. I’ll investigate further.