[jvm] duplicated filename creates exceptions when updating snapshot #552

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1. nedtwigg

   added

   bugSomething isn't workingSomething isn't working

   jvm

   on Oct 11, 2025
2. nedtwigg commented on Oct 11, 2025

   

   nedtwigg

   on Oct 11, 2025

   Member

   More actions

   Huh. Definitely sounds like a bug. Can you share more detail in the stacktrace or the package names causing the conflict?
3. AlbRoehm commented on Oct 14, 2025

   

   AlbRoehm

   on Oct 14, 2025

   Last edited by AlbRoehm

   Author

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   The package/file name is base.routes.internal.RequestRoutesTest.kt and base.routes.exposed.RequestRoutesTest.kt. The test itself ends successfully, but the gradle logs contain the following stacktrace. Playing around the file name showed that moving to two different names hides the issue and moving to anything else identical for both files brings it back.

   I will try to setup a minimal example to see if I can reproduce it more easily.

   RequestRoutesTest > PostRequest > Provide invalid authentication, returns auth failure() PASSED
   
   Oct 14, 2025 3:44:28 PM org.junit.platform.launcher.core.CompositeTestExecutionListener lambda$notifyEach$21
   WARNING: TestExecutionListener [com.diffplug.selfie.junit5.SelfieTestExecutionListener] threw exception for method: testPlanExecutionFinished(org.junit.platform.launcher.TestPlan@7e642f83)
   java.lang.AssertionError: Expected to find inline assertion on line 136, but there was only `                        ): Either<Problem, Request> = testNotImplemented()`
   	at com.diffplug.selfie.guts.SourceFile.parseToBeLike(SourceFile.kt:119)
   	at com.diffplug.selfie.guts.InlineWriteTracker.persistWrites(WriteTracker.kt:215)
   	at com.diffplug.selfie.junit5.SnapshotSystemJUnit5.finishedAllTests(SnapshotSystemJUnit5.kt:111)
   	at com.diffplug.selfie.junit5.SelfieTestExecutionListener.testPlanExecutionFinished(SelfieTestExecutionListener.kt:75)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.lambda$testPlanExecutionFinished$14(CompositeTestExecutionListener.java:88)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.lambda$notifyEach$21(CompositeTestExecutionListener.java:110)
   	at org.junit.platform.commons.util.CollectionUtils.forEachInReverseOrder(CollectionUtils.java:263)
   	at org.junit.platform.launcher.core.IterationOrder$2.forEach(IterationOrder.java:30)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.notifyEach(CompositeTestExecutionListener.java:108)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.testPlanExecutionFinished(CompositeTestExecutionListener.java:87)
   	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:105)
   	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:64)
   	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:150)
   	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:63)
   	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:109)
   	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:91)
   	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:47)
   	at org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$1(InterceptingLauncher.java:39)
   	at org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
   	at org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:38)
   	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:47)
   	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:124)
   	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:99)
   	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:94)
   	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:63)
   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
   	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
   	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
   	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
   	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
   	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:92)
   	at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
   	at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:200)
   	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:132)
   	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
   	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
   	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
   	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
   	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
   	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
   	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
   
4. AlbRoehm commented on Oct 14, 2025

   

   AlbRoehm

   on Oct 14, 2025

   Author

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   Looks like the following lines are enough to force the behavior:

   Seems to work for selfie version: 2.5.3 and 2.5.4

   package com.a
   
   import com.diffplug.selfie.coroutines.expectSelfie
   import kotlinx.coroutines.test.runTest
   import org.junit.jupiter.api.Test
   
   class SameName {
       @Test
       fun Scenario() = runTest {
           assert(false) { "This is file a, the wrong file" }
       }
   }

   package com.b
   
   import com.diffplug.selfie.coroutines.expectSelfie
   import kotlinx.coroutines.test.runTest
   import org.junit.jupiter.api.Test
   
   class SameName {
       @Test
       fun Scenario() = runTest {
           expectSelfie("123").toBe_TODO()
       }
   }

   By running test b you get:

   Oct 14, 2025 4:04:16 PM org.junit.platform.launcher.core.CompositeTestExecutionListener lambda$notifyEach$21
   WARNING: TestExecutionListener [com.diffplug.selfie.junit5.SelfieTestExecutionListener] threw exception for method: testPlanExecutionFinished(org.junit.platform.launcher.TestPlan@27646bb3)
   java.lang.AssertionError: Expected to find inline assertion on line 10, but there was only `        assert(false) { "This is file a, the wrong file" }`
   	at com.diffplug.selfie.guts.SourceFile.parseToBeLike(SourceFile.kt:119)
   	at com.diffplug.selfie.guts.InlineWriteTracker.persistWrites(WriteTracker.kt:215)
   	at com.diffplug.selfie.junit5.SnapshotSystemJUnit5.finishedAllTests(SnapshotSystemJUnit5.kt:111)
   	at com.diffplug.selfie.junit5.SelfieTestExecutionListener.testPlanExecutionFinished(SelfieTestExecutionListener.kt:75)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.lambda$testPlanExecutionFinished$14(CompositeTestExecutionListener.java:88)
   	at org.junit.platform.launcher.core.CompositeTestExecutionListener.lambda$notifyEach$21(CompositeTestExecutionListener.java:110)
   	at org.junit.platform.commons.util.CollectionUtils.forEachInReverseOrder(CollectionUtils.java:263)
   	at org.junit.platform.launcher.core.IterationOrder$2.forEach(IterationOrder.java:30)