I want to test a fragment in test activity. I added TestTragmentActivity
to androidTest
along with AndroidManifest.xml
file. But when I try to use this activity via an ActivityTestRule
it gives following error:
java.lang.RuntimeException: Could not launch activity
at android.support.test.runner.MonitoringInstrumentation.startActivitySync(MonitoringInstrumentation.java:371)
at android.support.test.rule.ActivityTestRule.launchActivity(ActivityTestRule.java:219)
at com.bbm.ui.fragments.StickerPackListFragmentTest.testEmpty(StickerPackListFragmentTest.java:29)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55)
at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:270)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
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.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:59)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:262)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1887)
Caused by: java.lang.RuntimeException: Unable to resolve activity for: Intent { act=android.intent.action.MAIN flg=0x14000000 cmp=com.bbm.debug/com.bbm.TestFragmentActivity }
at android.app.Instrumentation.startActivitySync(Instrumentation.java:391)
at android.support.test.runner.MonitoringInstrumentation.access$201(MonitoringInstrumentation.java:90)
at android.support.test.runner.MonitoringInstrumentation$5.call(MonitoringInstrumentation.java:351)
at android.support.test.runner.MonitoringInstrumentation$5.call(MonitoringInstrumentation.java:348)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
The TestFragmentActivity
is just an empty activity. Below is the AndroidManifest.xml
in the androidTest
folder.
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.bbm">
<application
android:label="@string/app_name"
tools:replace="android:label">
<activity android:name=".TestFragmentActivity"></activity>
</application>
</manifest>
I tried to get some data about why this is happening. Below is my test:
@RunWith(AndroidJUnit4.class)
public class TestFragment {
@Rule
public ActivityTestRule<TestFragmentActivity> rule =
new ActivityTestRule<>(TestFragmentActivity.class, false, false);
@Test
public void testEmpty() {
// Just for logging purpose
printActivities(InstrumentationRegistry.getTargetContext(), "APP_TARGET_CONTEXT");
printActivities(InstrumentationRegistry.getContext(), "APP_CONTEXT");
// The launch fails....
rule.launchActivity(null);
}
private void printActivities(Context context, String tag) {
try {
ActivityInfo[] infos = context.getPackageManager().getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES).activities;
for(ActivityInfo info : infos) {
Log.d(tag, info.name);
}
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
Log.d(tag + "_PACKAGE_NAME", context.getPackageName());
}
}
The output of above is:
10-06 18:46:45.419 13030-13052/com.example.achhatra.myapplication D/APP_TARGET_CONTEXT: com.example.achhatra.myapplication.MainActivity
10-06 18:46:45.419 13030-13052/com.example.achhatra.myapplication D/APP_TARGET_CONTEXT_PACKAGE_NAME: com.example.achhatra.myapplication
10-06 18:46:45.419 13030-13052/com.example.achhatra.myapplication D/APP_CONTEXT: com.example.achhatra.myapplication.TestFragmentActivity
10-06 18:46:45.419 13030-13052/com.example.achhatra.myapplication D/APP_CONTEXT_PACKAGE_NAME: com.example.achhatra.myapplication.test
As you can see the TestFragmentActivity
is in the androidTest
context and not in the target context. That is the reason ActivityTestRule
is not able to launch it.
I would like to know how can I launch this TestFragmentActivity
in this test.
Only use launchActivity
if you're passing in a custom Intent
to launch the Activity with. Otherwise just use true
in the constructor like so:
@Rule
public ActivityTestRule<TestFragmentActivity> rule =
new ActivityTestRule<>(TestFragmentActivity.class, false, true);
Otherwise, you can do something like this to pass in Activity parameters:
@RunWith(AndroidJUnit4.class) public class TestFragment {
@Rule
public ActivityTestRule<TestFragmentActivity> rule =
new ActivityTestRule<>(TestFragmentActivity.class, false, false);
private Activity launchedActivity;
@Before
public void setup() {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.putExtra("parameter", "Value");
launchedActivity = rule.launchActivity(intent);
}
}