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UI tests extremely flaky on macOS in GitHub Actions #3057

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LorenzoBettini opened this issue May 21, 2024 · 5 comments · Fixed by #3063
Closed

UI tests extremely flaky on macOS in GitHub Actions #3057

LorenzoBettini opened this issue May 21, 2024 · 5 comments · Fixed by #3063
Milestone
Release_2.36

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@LorenzoBettini
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Some examples:

Failures: 
org.eclipse.xtend.ide.tests.compiler.ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_4
  Run 1: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_4:295->testResolvingXFunctionTypeRef:447->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 Couldn't find the mandatory library 'org.eclipse.xtext.xbase.lib' 2.8.0 or higher on the project's classpath.
  Run 2: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_4:295->testResolvingXFunctionTypeRef:421->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 org.eclipse.emf.ecore.EObject cannot be resolved to a type.
  Run 3: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_4:295->testResolvingXFunctionTypeRef:421->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 org.eclipse.emf.ecore.EObject cannot be resolved to a type.
  Run 4: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_4:295->testResolvingXFunctionTypeRef:447->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 myannotation.MyAnnotation cannot be resolved to a type.

Flakes: 
org.eclipse.xtend.ide.tests.compiler.ActiveAnnotationsInSameProjectTest.testActiveAnnotationInSameProject
  Run 1: ActiveAnnotationsInSameProjectTest.testActiveAnnotationInSameProject:144->assertHasErrors:529->Assert.fail:89 Expected an error marker containing 'same project' on /test.project/src/mypack/Client.xtend but found Couldn't find the mandatory library 'org.eclipse.xtext.xbase.lib' 2.8.0 or higher on the project's classpath.
  Run 2: PASS

org.eclipse.xtend.ide.tests.compiler.CircularDepsBetweenJavaAndXtendTest.testJavaSignatureDependsOnXtend
  Run 1: CircularDepsBetweenJavaAndXtendTest.testJavaSignatureDependsOnXtend:242->Assert.assertEquals:633->Assert.assertEquals:647->Assert.failNotEquals:835->Assert.fail:89 expected:<0> but was:<3>
  Run 2: PASS

org.eclipse.xtend.ide.tests.compiler.ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef
  Run 1: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef:261->testResolvingXFunctionTypeRef:421->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 org.eclipse.emf.ecore.EObject cannot be resolved to a type.
  Run 2: PASS

org.eclipse.xtend.ide.tests.compiler.ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_3
  Run 1: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_3:283->testResolvingXFunctionTypeRef:447->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 myannotation.MyAnnotation cannot be resolved to a type.
  Run 2: PASS

org.eclipse.xtend.ide.tests.compiler.ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_5
  Run 1: ResolvingCrossReferenceDuringIndexingTest.testResolvingXFunctionTypeRef_5:307->testResolvingXFunctionTypeRef:421->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 org.eclipse.emf.ecore.EObject cannot be resolved to a type.
  Run 2: PASS

org.eclipse.xtend.ide.tests.compiler.ResolvingCrossReferenceDuringIndexingTest.testResolvingXtendAnnotationReference
  Run 1: ResolvingCrossReferenceDuringIndexingTest.testResolvingXtendAnnotationReference:246->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 myannotation.MyAnnotation cannot be resolved to a type.
  Run 2: ResolvingCrossReferenceDuringIndexingTest.testResolvingXtendAnnotationReference:246->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 myannotation.MyAnnotation cannot be resolved to a type.
  Run 3: ResolvingCrossReferenceDuringIndexingTest.testResolvingXtendAnnotationReference:225->assertNoErrorsInWorkspace:460->Assert.assertFalse:65->Assert.assertTrue:42->Assert.fail:89 The method or field Assert is undefined
  Run 4: PASS

org.eclipse.xtend.ide.tests.macros.JdtBasedProcessorProviderTest.testClassLoaderSeesAllUpstreamProjects
  Run 1: JdtBasedProcessorProviderTest.testClassLoaderSeesAllUpstreamProjects:137 Workspace contained errors: 
 - Lib.xtend:1 - Couldn't find the mandatory library 'org.eclipse.xtext.xbase.lib' 2.8.0 or higher on the project's classpath.(org.eclipse.xtend.ide.xtend.check.fast)
 - A.xtend:1 - Couldn't find the mandatory library 'org.eclipse.xtext.xbase.lib' 2.8.0 or higher on the project's classpath.(org.eclipse.xtend.ide.xtend.check.fast)
 - A.xtend:3 - annotation.MyAA cannot be resolved to an annotation type.(org.eclipse.xtend.ide.xtend.check.fast)
  Run 2: PASS


Tests run: 3121, Failures: 1, Errors: 0, Skipped: 52, Flakes: 7

Maybe there's some missed synchronization with project refresh and building.
Even when the build succeeds, there are lots of flakes.

I can try increase the number of retries.
@LorenzoBettini
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Xtend IDE tests are the favorite, but sometimes it happens much before, in Xtext UI tests:

Results:

Failures: 
org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testBug463215_01
  Run 1: XtextContentAssistTest.testBug463215_01:114->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 2: XtextContentAssistTest.testBug463215_01:114->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 3: XtextContentAssistTest.testBug463215_01:114->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 4: XtextContentAssistTest.testBug463215_01:114->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.common.Terminals]> but was:<[]>

org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testBug463215_02
  Run 1: XtextContentAssistTest.testBug463215_02:125->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 2: XtextContentAssistTest.testBug463215_02:125->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 3: XtextContentAssistTest.testBug463215_02:125->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 4: XtextContentAssistTest.testBug463215_02:125->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>

org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testCompletionOnDatatypeReference_01
  Run 1: XtextContentAssistTest.testCompletionOnDatatypeReference_01:136->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 2: XtextContentAssistTest.testCompletionOnDatatypeReference_01:136->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 3: XtextContentAssistTest.testCompletionOnDatatypeReference_01:136->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 4: XtextContentAssistTest.testCompletionOnDatatypeReference_01:136->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>

org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testCompletionOnDatatypeReference_02
  Run 1: XtextContentAssistTest.testCompletionOnDatatypeReference_02:147->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 2: XtextContentAssistTest.testCompletionOnDatatypeReference_02:147->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 3: XtextContentAssistTest.testCompletionOnDatatypeReference_02:147->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 4: XtextContentAssistTest.testCompletionOnDatatypeReference_02:147->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>

org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testCompletionOnDatatypeReference_03
  Run 1: XtextContentAssistTest.testCompletionOnDatatypeReference_03:155->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 2: XtextContentAssistTest.testCompletionOnDatatypeReference_03:155->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 3: XtextContentAssistTest.testCompletionOnDatatypeReference_03:155->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>
  Run 4: XtextContentAssistTest.testCompletionOnDatatypeReference_03:155->Assert.assertEquals:146->Assert.assertEquals:117 expected:<[org.eclipse.xtext.Xtext
org.eclipse.xtext.common.Terminals]> but was:<[]>

org.eclipse.xtext.xtext.ui.editor.contentassist.XtextContentAssistTest.testCompletionOnDatatypeReference_04
  Run 1: XtextContentAssistTest.testCompletionOnDatatypeReference_04:161->Assert.fail:89 No such proposal: Terminals - org.eclipse.xtext.common.Terminals Found: [@, @Deprecated, @Exported, @Final, @Override]
  Run 2: XtextContentAssistTest.testCompletionOnDatatypeReference_04:161->Assert.fail:89 No such proposal: Terminals - org.eclipse.xtext.common.Terminals Found: [@, @Deprecated, @Exported, @Final, @Override]
  Run 3: XtextContentAssistTest.testCompletionOnDatatypeReference_04:161->Assert.fail:89 No such proposal: Terminals - org.eclipse.xtext.common.Terminals Found: [@, @Deprecated, @Exported, @Final, @Override]
  Run 4: XtextContentAssistTest.testCompletionOnDatatypeReference_04:161->Assert.fail:89 No such proposal: Terminals - org.eclipse.xtext.common.Terminals Found: [@, @Deprecated, @Exported, @Final, @Override]


Tests run: 267, Failures: 6, Errors: 0, Skipped: 1

@cdietrich
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See also eclipse-mwe/mwe#270

@LorenzoBettini
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I guess yes...

for Xtend UI tests I can increase the test retries.

For XtextContentAssistTest maybe that won't help, because the project is created only once and I guess once the build has been done it won't be retried:

	@Before
	public void doSetupProject() throws Exception{
		if(project == null){
			with(doGetSetup());
			PluginProjectFactory projectFactory = getInjector().getInstance(PluginProjectFactory.class);
			projectFactory.setProjectName(TEST_PROJECT);
			projectFactory.addFolders(Collections.singletonList("src"));
			projectFactory.addBuilderIds(XtextProjectHelper.BUILDER_ID, JavaCore.BUILDER_ID, "org.eclipse.pde.ManifestBuilder",
					"org.eclipse.pde.SchemaBuilder");
			projectFactory.addProjectNatures(
					XtextProjectHelper.NATURE_ID, JavaCore.NATURE_ID, "org.eclipse.pde.PluginNature");
			projectFactory.addRequiredBundles(Lists.newArrayList("org.eclipse.xtext"));
			project = projectFactory.createProject(new NullProgressMonitor(), null);
			get(SyncUtil.class).waitForBuild(new NullProgressMonitor());
		}
	}

maybe moving the waitForBuild outside the if?

On a side note, in my projects things improved a lot concerning flakiness in these situations, if not completely fixed, by stopping creating projects programmatically and by importing existing ad-hoc projects for testing, e.g., https://github.com/LorenzoBettini/edelta/blob/master/edelta.parent/edelta.ui.tests/src/edelta/ui/tests/EdeltaContentAssistTest.java#L57, using https://github.com/LorenzoBettini/edelta/blob/master/edelta.parent/edelta.ui.tests/src/edelta/ui/tests/utils/ProjectImportUtil.java

Moreover, I wonder whether project creation in projectFactory happen in a workspace operation in a sort of synchronized way.

This was referenced May 22, 2024
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Merged
@LorenzoBettini LorenzoBettini added this to the Release_2.35 milestone May 23, 2024
@LorenzoBettini
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I'm re-opening it: there are still failures on macOS :'(

let's see whether increasing the retries makes things better, and then we'll investigate further...

This was referenced May 23, 2024
Merged
Open
@cdietrich cdietrich modified the milestones: Release_2.35, Release_2.36 May 27, 2024
@LorenzoBettini
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I'm closing this, since I don't see that anymore

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DetectVMInstallationsJob.disabled as system property of tycho-surefire LorenzoBettini/xtext
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@cdietrich @LorenzoBettini