Process crashes during creation of RoboGuice injector, if there is a mocked instance in any module

Question

I have a problem with using RoboGuice and AndroidMock frameworks in unit testing. I've created a simple project to show my problem. Here I create a mocked instance and register it in the RoboGuice. But the process crashes between the "setUp()" and "test01()" methods. As I guess, actually the process crashes when the Injector is created, if any module has a mocked instance inside.

If I replace the mocked instance with an instance of a class that implements the interface then everything works fine.

Does anybody know how to fix this problem?

Here is my test code:

public class testInjectMock extends RoboUnitTestCase<MyApplication> {     protected void setUp() throws Exception {         InterfaceToMock instance = AndroidMock.createNiceMock(InterfaceToMock.class);           AndroidMock.expect(instance.SimpleMethod()).andStubReturn("Hello!");                     MyModule myMockModule = new MyModule();         myMockModule.setMockedInstance(instance);//Comment this string to get into the test01() method                   MyApplication.setMyModule(myMockModule);         super.setUp();     }     public void test01() {         //It never comes here     } } 

Module source code:

public class MyModule extends AbstractAndroidModule {         protected InterfaceToMock mockedInstance;         public void setMockedInstance(InterfaceToMock mockedInstance) {             this.mockedInstance = mockedInstance;         }         @Override         protected void configure() {             if(mockedInstance != null)                 bind(InterfaceToMock.class).toInstance(mockedInstance);         }     } 

The logcat output:

05-23 16:17:07.135: INFO/DEBUG(27): Build fingerprint: 'generic/sdk/generic/:2.1-update1/ECLAIR/35983:eng/test-keys' 05-23 16:17:07.135: INFO/DEBUG(27): pid: 2025, tid: 2031  >>> InjectMock.test <<< 05-23 16:17:07.145: INFO/DEBUG(27): signal 11 (SIGSEGV), fault addr 00000000 05-23 16:17:07.155: INFO/DEBUG(27):  r0 0011b218  r1 43d1caa0  r2 00000000  r3 00000000 05-23 16:17:07.155: INFO/DEBUG(27):  r4 43d1caa0  r5 0011b218  r6 451c0e30  r7 4000a958 05-23 16:17:07.155: INFO/DEBUG(27):  r8 ad00f380  r9 00138de0  10 426bda34  fp 00138de0 05-23 16:17:07.155: INFO/DEBUG(27):  ip 00000002  sp 451c0dc0  lr ad05ad1d  pc ad05a804  cpsr 00000030 05-23 16:17:07.295: INFO/DEBUG(27):          #00  pc 0005a804  /system/lib/libdvm.so 05-23 16:17:07.305: INFO/DEBUG(27):          #01  pc 0005ad18  /system/lib/libdvm.so 05-23 16:17:07.305: INFO/DEBUG(27):          #02  pc 00054a4a  /system/lib/libdvm.so 05-23 16:17:07.315: INFO/DEBUG(27):          #03  pc 00013f58  /system/lib/libdvm.so 05-23 16:17:07.325: INFO/DEBUG(27):          #04  pc 00019888  /system/lib/libdvm.so 05-23 16:17:07.335: INFO/DEBUG(27):          #05  pc 00018d5c  /system/lib/libdvm.so 05-23 16:17:07.335: INFO/DEBUG(27):          #06  pc 0004d6d0  /system/lib/libdvm.so 05-23 16:17:07.345: INFO/DEBUG(27):          #07  pc 0004d702  /system/lib/libdvm.so 05-23 16:17:07.355: INFO/DEBUG(27):          #08  pc 00041c78  /system/lib/libdvm.so 05-23 16:17:07.365: INFO/DEBUG(27):          #09  pc 00010000  /system/lib/libc.so 05-23 16:17:07.365: INFO/DEBUG(27):          #10  pc 0000fad4  /system/lib/libc.so 05-23 16:17:07.375: INFO/DEBUG(27): code around pc: 05-23 16:17:07.385: INFO/DEBUG(27): ad05a7f4 ffff5ae0 fffe57c4 6801b5f8 6a8b1c05  05-23 16:17:07.385: INFO/DEBUG(27): ad05a804 1c30681e ff5ef7ff 28001c04 6840d018  05-23 16:17:07.395: INFO/DEBUG(27): ad05a814 d0152800 37101c27 d0112f00 f7ff1c28  05-23 16:17:07.395: INFO/DEBUG(27): code around lr: 05-23 16:17:07.405: INFO/DEBUG(27): ad05ad0c f7ff1c20 bd10ff7b 6804b510 fd70f7ff  05-23 16:17:07.405: INFO/DEBUG(27): ad05ad1c 28001c01 f7ffd102 e002f859 f7ff1c20  05-23 16:17:07.415: INFO/DEBUG(27): ad05ad2c bd10ff6d 4c24b5f0 1c0d1c06 48236a81  05-23 16:17:07.425: INFO/DEBUG(27): stack: 05-23 16:17:07.425: INFO/DEBUG(27):     451c0d80  43d20870  /dev/ashmem/mspace/dalvik-heap/2 (deleted) 05-23 16:17:07.425: INFO/DEBUG(27):     451c0d84  00000354   05-23 16:17:07.425: INFO/DEBUG(27):     451c0d88  00000022   05-23 16:17:07.425: INFO/DEBUG(27):     451c0d8c  ad043693  /system/lib/libdvm.so 05-23 16:17:07.425: INFO/DEBUG(27):     451c0d90  ad07ff50  /system/lib/libdvm.so 05-23 16:17:07.425: INFO/DEBUG(27):     451c0d94  00000024   05-23 16:17:07.425: INFO/DEBUG(27):     451c0d98  00000354   05-23 16:17:07.425: INFO/DEBUG(27):     451c0d9c  ad0170ac  /system/lib/libdvm.so 05-23 16:17:07.425: INFO/DEBUG(27):     451c0da0  00000000   05-23 16:17:07.435: INFO/DEBUG(27):     451c0da4  afe0f2c0  /system/lib/libc.so 05-23 16:17:07.435: INFO/DEBUG(27):     451c0da8  ad080c00  /system/lib/libdvm.so 05-23 16:17:07.435: INFO/DEBUG(27):     451c0dac  00000002   05-23 16:17:07.435: INFO/DEBUG(27):     451c0db0  00000354   05-23 16:17:07.445: INFO/DEBUG(27):     451c0db4  43d20870  /dev/ashmem/mspace/dalvik-heap/2 (deleted) 05-23 16:17:07.445: INFO/DEBUG(27):     451c0db8  df002777   05-23 16:17:07.455: INFO/DEBUG(27):     451c0dbc  e3a070ad   05-23 16:17:07.455: INFO/DEBUG(27): #00 451c0dc0  00000000   05-23 16:17:07.455: INFO/DEBUG(27):     451c0dc4  43d1caa0  /dev/ashmem/mspace/dalvik-heap/2 (deleted) 05-23 16:17:07.455: INFO/DEBUG(27):     451c0dc8  451c0e38   05-23 16:17:07.455: INFO/DEBUG(27):     451c0dcc  451c0e30   05-23 16:17:07.455: INFO/DEBUG(27):     451c0dd0  4000a958  /dev/ashmem/mspace/dalvik-heap/zygote/0 (deleted) 05-23 16:17:07.455: INFO/DEBUG(27):     451c0dd4  ad05ad1d  /system/lib/libdvm.so 05-23 16:17:07.465: INFO/DEBUG(27): #01 451c0dd8  417a0b5c  /data/dalvik-cache/system@[email protected]@classes.dex 05-23 16:17:07.475: INFO/DEBUG(27):     451c0ddc  ad054a4f  /system/lib/libdvm.so 

Answer 1

Unfortunately, if there's an issue with the setup steps for RoboGuice & unit testing, you can get this sort of error. No magic short answer, but rather a set of steps to follow exactly.

BTW, you're using RoboGuice 1.1 - AbstractAndroidModule & RoboUnitTest no longer exist in RoboGuice 2.0. RoboGuice 1.1 is deprecated, so best overall solution is to move to newest version according to these instructions Upgrading to 2.0.

However, just in case you're attached to RoboGuice 1.1, here's some steps to follow:

• Don't have inconsistent generated code/build files after refactoring/changing package names etc. Delete generated code, do a Clean & Build, even recreate a new project and copy source files in.
• Have your app code in one project (RoboGuice dependent, Instrumentation/RoboUnitTestCase/AndroidMock independent). You app code project has within lib: guice-2.0-no_aop.jar and roboguice-1.1.2.jar.
• Have your unit test code in another project that references it (RoboGuice independent, Instrumentation/RoboUnitTestCase/AndroidMock independent). Instructions here Before You Get Started. Your test code project has within lib: AndroidMockGenerator.jar.

• In your app project, your App + Module classes look something like this:

  package com.mypackage;  import android.app.Instrumentation; import android.content.Context;  public class MyApplication extends roboguice.application.RoboApplication {  static MyModule myModule;      // this constructor usually called by app public MyApplication(Context context) {     super();     attachBaseContext(context); } // This constructor called by unit tests.  This is unfortunately small amount of  // 'abstraction leakage' of unit test needs into app code. public MyApplication(Instrumentation instrumentation) {     super();     attachBaseContext(instrumentation.getContext()); }     public static void setModule(MyModule module) {     MyApplication.myModule = module; }    public static MyModule getModule() {     return MyApplication.myModule; }    } 

  And

  package com.mypackage;  public class MyModule extends roboguice.config.AbstractAndroidModule { // this will be injected protected UsefulObject myUsefulInstance;      public void setUsefulObject(UsefulObject usefulInstance) {     this.myUsefulInstance = usefulInstance; }     public UsefulObject getUsefulObject() {     return this.myUsefulInstance; }      @Override protected void configure() {     bind(UsefulObject.class).toInstance(myUsefulInstance); } 

  }

• In your test project, your test case class looks something like this:

  import android.test.suitebuilder.annotation.LargeTest;     import com.mypackage.MyApplication;     import com.mypackage.MyModule;     import com.mypackage.UsefulObject;      //import com.mypackage.UsefulObjectSimpleImplementation;     import android.test.suitebuilder.annotation.MediumTest;     import android.test.suitebuilder.annotation.SmallTest;     import com.google.android.testing.mocking.AndroidMock;     import roboguice.test.RoboUnitTestCase;  public class TestMyModule extends RoboUnitTestCase<MyApplication> {  @Override protected void setUp() throws Exception {     UsefulObject instance = // new UsefulObjectSimpleImplementation();                              AndroidMock.createNiceMock(UsefulObject.class);                MyModule mockModule = new MyModule();     mockModule.setUsefulObject(instance);     MyApplication.setModule(mockModule);     super.setUp(); }  // Make sure you use one of the @*Test annotations AND begin // your testcase's name with "test" @MediumTest public void test01() {     AndroidMock.expect(MyApplication.getModule().getUsefulObject().          simpleMethod()).andStubReturn("Hello!"); } 

  }

• Ensure that for the test project, the AndroidManifest.xml file has the following entry:

   <instrumentation android:name="android.test.InstrumentationTestRunner"      android:targetPackage="com.mypackage"      android:label="Tests for com.mypackage"/> 

• Before running your test, ensure your emulator is started and is running healthily, by running a different, simple "Hello World" app first. When this succeeds, then run your app. Lastly, run your test project.

Should work after this. Best of luck & let me know!