Can't unit test with Esri's Android Runtime SDK

Question

I'm writing some unit tests in my android application and every call to Esri's Android Runtime SDK throws a null pointer exeption. The method @Test public void addition_isCorrect() { SpatialReference wgs84 = SpatialReferences.getWgs84(); assertEquals(4, 2 + 2); } ... breaks with the following stack trace: java.lang.ExceptionInInitializerError at com.esri.arcgisruntime.internal.jni.CoreSpatialReference.(SourceFile:40) at com.esri.arcgisruntime.geometry.SpatialReference.(SourceFile:149) at com.esri.arcgisruntime.geometry.SpatialReference.create(SourceFile:86) at com.esri.arcgisruntime.geometry.SpatialReferences.(SourceFile:26) at br.gov.ba.conder.vistorias.ExampleUnitTest.addition_isCorrect(ExampleUnitTest.java:18) 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) Caused by: java.lang.NullPointerException at com.esri.arcgisruntime.ArcGISRuntimeEnvironment.c(SourceFile:250) at com.esri.arcgisruntime.ArcGISRuntimeEnvironment.(SourceFile:50) ... 27 more What I'm doing wrong? I'm using the Android Runtime SDK 100.6.0

padmalcom · Answer

Hi, two years later, I'm running into the same issue with Kotlin. Can't believe nobody does unit testing in the meantime. Could you solve the issue @PlinioSantos?

PlinioSantos · Answer

Unit tests still dont work with ArcGISRuntime.initialize(). I guess you're right and ArcGIS Runtime for Android must run in actual devices or emulators. This is a shame once unit testing is a good development practice.

GayleYoung · Answer

Hello, thanks for the information. You can try to call ArcGISRuntime.initialize() to force the initialization of ArcGIS Runtime. However, I'm not clear if your unit tests are running in a headless environment and I believe the product was designed to work on a device; so you will likely still need a graphical environment to run the unit tests.