Library resources with Robolectric 3 - JodaTime

Question

Getting an ResourceNotFoundException when using a library with Robolectic 3.0-rc3. The resource is declared in build.gradle with compile 'net.danlew:android.joda:2.8.0'. Specifically this is the Android port of Joda-Time.

android.content.res.Resources$NotFoundException: Unable to find resource ID #0x7f0501da
at org.robolectric.shadows.ShadowResources.checkResName(ShadowResources.java:343)
at org.robolectric.shadows.ShadowResources.getResName(ShadowResources.java:333)
at org.robolectric.shadows.ShadowResources.openRawResource(ShadowResources.java:382)
at android.content.res.Resources.openRawResource(Resources.java)
at net.danlew.android.joda.ResourceZoneInfoProvider.openResource(ResourceZoneInfoProvider.java:120)
at net.danlew.android.joda.ResourceZoneInfoProvider.<init>(ResourceZoneInfoProvider.java:39)

Application class:

@Override
public void onCreate() {
    super.onCreate();    
    JodaTime.init(this);
}

My test class:

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class,
    sdk = 21)
public class MyTest {

@Before
public void setup() {

}

@Test
public void myTest() {
//Test my stuff
}

}

Answer 1

You need to initialise the library in your tests, with the Robolectric runtime environment. So add this to your setup() methods.

JodaTimeAndroid.init(RuntimeEnvironment.application);

So your test would look something like this:

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 21)
public class MyApplicationTest {

    @Before
    public void setup() {
        JodaTimeAndroid.init(RuntimeEnvironment.application);
    }

    @Test
    public void myTest() {
        //Test my stuff
        DateTime aDateTime = new DateTime();
        DateTime bDateTime = new DateTime(aDateTime);
        assertEquals(aDateTime, bDateTime);
    }
}