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JetBrains / compose-multiplatform

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
https://jetbrains.com/lp/compose-multiplatform
Apache License 2.0
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Common composable tests fail on android but succeed for desktop. #2611

Closed victorkemboi closed 2 months ago

victorkemboi commented 1 year ago

I am testing multiplatform compose and want to write tests for the common shared compose code. Currently, I am targeting android and desktop. When I run the tests against the desktop as guided by the IDE, it succeeds but fails on android. Do I need to add some instrumentation configs for this to succeed other than the available test dependencies? I am developing the project here, you can have a look at the commonTest and aid if I am missing something or I am approaching it wrongly. Thanks

victorkemboi commented 1 year ago

The following is the error I am experiencing when I run this test:

` FINGERPRINT must not be null java.lang.NullPointerException: FINGERPRINT must not be null at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.runTest(ComposeUiTest.android.kt:280) at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1.evaluate(AndroidComposeTestRule.android.kt:147) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63) at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.ParentRunner.run(ParentRunner.java:413) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:108) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:57) at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:39) at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:62) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:52) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:577) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) at jdk.proxy1/jdk.proxy1.$Proxy2.processTestClass(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker$2.run(TestWorker.java:176) at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60) at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65) at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)

`

igordmn commented 1 year ago

See https://youtrack.jetbrains.com/issue/KT-46452/Allow-to-run-common-tests-as-Android-Instrumentation-tests. The crash is because IDE runs a common test on JVM, not on an Android device

igordmn commented 1 year ago

A small cosmetic fix requested here. It, of course, doesn't solve the issue, but it will be good to do it.

We also will add a meaningful message to show that a test should be run on an Android device: "Compose tests can only run on Android device."

okushnikov commented 3 months ago

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.