I am new to android development. Learning best testing practices. I downloaded Robolectric 2.2. I wrote a simple test for the Spinner example that ships with android. I get an exception. I followed the steps on robolectric to set it up in eclipse. Thanks for your help.
Test code:
package com.example;
import com.android.example.spinner.R;
import com.android.example.spinner.SpinnerActivity;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Spinner;
import junit.framework.Assert;
#RunWith(RobolectricTestRunner.class)
public class SpinnerActivityTest {
private static final String tag = "SpinnerActivityTest";
#Test
public void spinnerShouldHaveOnClickListener() throws Exception {
SpinnerActivity spinnerActivity = new SpinnerActivity();
Spinner spinner = (Spinner)spinnerActivity.findViewById(R.id.Spinner01);
OnItemClickListener onItemClickListener = spinner.getOnItemClickListener();
Assert.assertTrue(onItemClickListener != null);
}
}
Exception:
java.lang.IncompatibleClassChangeError: class org.objectweb.asm.tree.ClassNode has interface org.objectweb.asm.ClassVisitor as super class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at org.robolectric.RobolectricTestRunner.createRobolectricClassLoader(RobolectricTestRunner.java:144)
at org.robolectric.RobolectricTestRunner.createSdkEnvironment(RobolectricTestRunner.java:116)
at org.robolectric.RobolectricTestRunner$3.create(RobolectricTestRunner.java:279)
at org.robolectric.EnvHolder.getSdkEnvironment(EnvHolder.java:21)
at org.robolectric.RobolectricTestRunner.getEnvironment(RobolectricTestRunner.java:277)
at org.robolectric.RobolectricTestRunner.access$100(RobolectricTestRunner.java:57)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:188)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:175)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Since Robolectric 2 you have to start your activity with Robolectric.buildActivity():
Activity activity = Robolectric.buildActivity( SpinnerActivity.class ).attach().create().start().resume().visible().get();
For more info see here: http://robolectric.org/activity-lifecycle.html
Related
I'm writing an integration test for a UI component.
The test is outlined as such:
package filter.clear
import android.view.View
import android.widget.SearchView
import androidx.test.core.app.ApplicationProvider
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.foo. /* ... several business-logic imports */
import org.junit.runner.RunWith
import org.robolectric.annotation.Config
import kotlin.test.assertEquals
#SmallTest
#RunWith(AndroidJUnit4::class)
#Config(manifest=Config.NONE)
class TestClearSearchView {
private fun searchView() = SearchView(ApplicationProvider.getApplicationContext())
fun clearShouldClearSearchViewQuery() {
// Given
val searchView = searchView()
val clearFilterView = ClearFilterView()
// ...
// When
clearFilterView.view.callOnClick()
// Expect
assertEquals(searchView.query, "")
}
}
However, running the test class (or directly the test method) results in Robolectric throwing a RuntimeException:
java.lang.RuntimeException: Delegate runner 'org.robolectric.RobolectricTestRunner' for AndroidJUnit4 could not be loaded.
at androidx.test.ext.junit.runners.AndroidJUnit4.throwInitializationError(AndroidJUnit4.java:92)
at androidx.test.ext.junit.runners.AndroidJUnit4.loadRunner(AndroidJUnit4.java:82)
at androidx.test.ext.junit.runners.AndroidJUnit4.loadRunner(AndroidJUnit4.java:51)
at androidx.test.ext.junit.runners.AndroidJUnit4.<init>(AndroidJUnit4.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:101)
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:87)
at com.intellij.junit4.JUnit46ClassesRequestBuilder.collectWrappedRunners(JUnit46ClassesRequestBuilder.java:86)
at com.intellij.junit4.JUnit46ClassesRequestBuilder.getClassesRequest(JUnit46ClassesRequestBuilder.java:47)
at com.intellij.junit4.JUnit4TestRunnerUtil.buildRequest(JUnit4TestRunnerUtil.java:90)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:46)
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.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at androidx.test.ext.junit.runners.AndroidJUnit4.loadRunner(AndroidJUnit4.java:72)
... 20 more
Caused by: org.junit.runners.model.InitializationError
at org.junit.runners.ParentRunner.validate(ParentRunner.java:418)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:84)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:65)
at org.robolectric.internal.SandboxTestRunner.<init>(SandboxTestRunner.java:56)
at org.robolectric.RobolectricTestRunner.<init>(RobolectricTestRunner.java:92)
... 25 more
You forgot to mark the method as #Test.
## -11,7 +11,6 ##
import com.foo. /* ... several business-logic imports */
+import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.annotation.Config
import kotlin.test.assertEquals
## -34,7 +33,6 ##
+ #Test
fun clearShouldClearSearchViewQuery() {
I am getting "java.lang.RuntimeException: Stub!" when running the roboelectric tests.I have proper eclipse ordering and also set the runner properly.
Here's the stack trace.
java.lang.RuntimeException: java.lang.RuntimeException: Stub!
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:240)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:177)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.RuntimeException: Stub!
at android.net.Uri.parse(Uri.java:53)
at org.robolectric.shadows.ShadowMediaStore.reset(ShadowMediaStore.java:27)
at org.robolectric.Robolectric.reset(Robolectric.java:1351)
at org.robolectric.internal.ParallelUniverse.resetStaticState(ParallelUniverse.java:47)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:226)
... 16 more
here is my test
package com.example.sample.test;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.Robolectric;
import org.robolectric.RobolectricTestRunner;
import com.example.sample.MainActivity;
import com.example.sample.R;
#RunWith(RobolectricTestRunner.class)
public class MyActivityTest {
private MainActivity activity;
#Test
public void shouldHaveHappySmiles() throws Exception {
String hello = new MainActivity().getResources().getString(R.string.hello_world);
assertThat(hello, equalTo("Hello world!"));
activity = Robolectric.buildActivity(MainActivity.class)
.create().get();
}
}
I wrote this testcase just to hang around with Roboelectric.
You shouldn't do :
new MainActivity().getResources().getString(R.string.hello_world);
This is probably where the Stub! exception comes from, although it's not clear in the stack trace.
Instead, create your activity with Robolectric, then get the value of the hello string, then assert:
activity = Robolectric.buildActivity(MainActivity.class).create().start().resume().visible().get();
String hello = Robolectric.shadowOf(activity).getResources().getString(R.string.hello_world);
assertThat(hello, equalTo("Hello world!"));
You can also use ShadowApplication#getResources().
I am getting the following exception while trying to run tests with robolectric on eclipse. Stumped what is causing this issue. Anyone faced the same?
My test class has only the following. I am just starting on it.
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
#RunWith(RobolectricTestRunner.class)
public class ABCMainActivityTest {
#Test
public void shouldFail() {
assertTrue(true);
}
}
Getting the following exception when i execute with the argument -noverify
java.lang.IllegalArgumentException: Test class can only have one constructor
at org.junit.runners.model.TestClass.<init>(TestClass.java:37)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:73)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:55)
at org.robolectric.RobolectricTestRunner$HelperTestRunner.<init>(RobolectricTestRunner.java:643)
at org.robolectric.RobolectricTestRunner.getHelperTestRunner(RobolectricTestRunner.java:261)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:194)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:175)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
else if i am not passing any arguments i am getting a
java.lang.VerifyError: Expecting a stackmap frame at branch target 46
I'm using Robolectric version 1.1 and it can't run my test if there is a button in the activity.
add_emoticon_activity.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<Button
android:id="#+id/addEmoticonButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/add_emoticon_button_text"
/>
</LinearLayout>
AddEmoticonActivity.java
import android.app.Activity;
import android.os.Bundle;
public class AddEmoticonActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_emoticon_activity);
}
}
AddEmoticonActivityTest.java
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import android.widget.Button;
import com.xtremelabs.robolectric.RobolectricTestRunner;
import com.xtremelabs.robolectric.shadows.ShadowHandler;
import com.xtremelabs.robolectric.shadows.ShadowToast;
#RunWith(RobolectricTestRunner.class)
public class AddEmoticonActivityTest {
private AddEmoticonActivity addEmoticonActivity;
private Button addButton;
#Before
public void setup() {
addEmoticonActivity = new AddEmoticonActivity();
addEmoticonActivity.onCreate(null);
addButton = (Button) addEmoticonActivity.findViewById(R.id.addEmoticonButton);
}
#Test
public void shouldDisplayErrorMessageWhenEmptyContentAdded() {
addButton.performClick();
ShadowHandler.idleMainLooper();
assertThat(ShadowToast.getTextOfLatestToast(), equalTo(addEmoticonActivity.getResources().getString(R.string.no_content_error_message)));
}
}
Below is the stacktrace that I got when I ran the test
java.lang.RuntimeException: error inflating layout/add_emoticon_activity
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:106)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:82)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:86)
at com.xtremelabs.robolectric.res.ResourceLoader.inflateView(ResourceLoader.java:377)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:43)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:48)
at android.view.LayoutInflater.inflate(LayoutInflater.java)
at com.xtremelabs.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:101)
at android.app.Activity.setContentView(Activity.java)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivity.onCreate(AddEmoticonActivity.java:10)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivityTest.setup(AddEmoticonActivityTest.java:24)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at com.xtremelabs.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:292)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.constructView(ViewLoader.java:228)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.create(ViewLoader.java:179)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:150)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:153)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:102)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:82)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:86)
at com.xtremelabs.robolectric.res.ResourceLoader.inflateView(ResourceLoader.java:377)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:43)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.xtremelabs.robolectric.bytecode.ShadowWrangler.methodInvoked(ShadowWrangler.java:99)
at com.xtremelabs.robolectric.bytecode.RobolectricInternals.methodInvoked(RobolectricInternals.java:111)
at android.view.LayoutInflater.inflate(LayoutInflater.java)
at com.xtremelabs.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.xtremelabs.robolectric.bytecode.ShadowWrangler.methodInvoked(ShadowWrangler.java:99)
at com.xtremelabs.robolectric.bytecode.RobolectricInternals.methodInvoked(RobolectricInternals.java:111)
at android.app.Activity.setContentView(Activity.java)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivity.onCreate(AddEmoticonActivity.java:10)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivityTest.setup(AddEmoticonActivityTest.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
... 20 more
Caused by: java.lang.NullPointerException
at com.xtremelabs.robolectric.res.ColorResourceLoader.getValue(ColorResourceLoader.java:33)
at com.xtremelabs.robolectric.res.ResourceLoader.getColorValue(ResourceLoader.java:382)
at com.xtremelabs.robolectric.shadows.ShadowResources.getColor(ShadowResources.java:65)
at android.content.res.Resources.getColor(Resources.java)
at com.xtremelabs.robolectric.shadows.ShadowView.setBackgroundColor(ShadowView.java:243)
at com.xtremelabs.robolectric.shadows.ShadowButton.applyAttributes(ShadowButton.java:14)
at com.xtremelabs.robolectric.shadows.ShadowView.__constructor__(ShadowView.java:90)
at com.xtremelabs.robolectric.shadows.ShadowView.__constructor__(ShadowView.java:82)
at android.widget.Button.<init>(Button.java)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.constructView(ViewLoader.java:228)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.create(ViewLoader.java:179)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:150)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:153)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:102)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:82)
at com.xtremelabs.robolectric.res.ViewLoader.inflateView(ViewLoader.java:86)
at com.xtremelabs.robolectric.res.ResourceLoader.inflateView(ResourceLoader.java:377)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:43)
at com.xtremelabs.robolectric.shadows.ShadowLayoutInflater.inflate(ShadowLayoutInflater.java:48)
at android.view.LayoutInflater.inflate(LayoutInflater.java)
at com.xtremelabs.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:101)
at android.app.Activity.setContentView(Activity.java)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivity.onCreate(AddEmoticonActivity.java:10)
at com.erlanggatjhie.emotextcon.activities.AddEmoticonActivityTest.setup(AddEmoticonActivityTest.java:24)
... 20 more
If I remove the button from layout.xml, it will work beautifully.
Does anyone know what happened?
Thanks a lot
It looks like it all comes down the a NullPointerException that caused the original problem.
This commit happened after 1.1 was released and it changed line 33 of the ColorResourceLoader.java, which is the line where you received the error.
https://github.com/pivotal/robolectric/commit/f647512bd80162f9cb6b2fac8c7b0db984266967
It looks like if you upgrade to a newer version of Robolectric it may fix the problem. I know 1.1 is the latest release version, but there is a 2.0 alpha 1 version that is out.
When trying to run a JUnit test on an Android Library project with Robolectric i get the following error:
java.lang.RuntimeException: java.lang.InstantiationException
at com.xtremelabs.robolectric.ApplicationResolver.newApplicationInstance(ApplicationResolver.java:56)
at com.xtremelabs.robolectric.ApplicationResolver.resolveApplication(ApplicationResolver.java:36)
at com.xtremelabs.robolectric.RobolectricTestRunner.createApplication(RobolectricTestRunner.java:246)
at com.xtremelabs.robolectric.RobolectricTestRunner.setupApplicationState(RobolectricTestRunner.java:233)
at com.xtremelabs.robolectric.RobolectricTestRunner.internalBeforeTest(RobolectricTestRunner.java:177)
at com.xtremelabs.robolectric.RobolectricTestRunner.methodBlock(RobolectricTestRunner.java:157)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.InstantiationException
at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at com.xtremelabs.robolectric.ApplicationResolver.newApplicationInstance(ApplicationResolver.java:54)
... 20 more
My first idea was that i made a mistake within the test, so i simplified the test run as much as possible:
import static org.junit.Assert.*;
import org.junit.Test;
import org.junit.runner.RunWith;
import com.xtremelabs.robolectric.RobolectricTestRunner;
#RunWith(RobolectricTestRunner.class)
public class CommonDataTest {
#Test
public void test(){
assertTrue(true);
}
}
but i still get the same error. I set up the Project as described here: http://robolectric.org/eclipse-quick-start/
The strange thing is that it worked with other Android Library Projects without any problems.
Any help would be appreciated! Thank you in advance!
it seemed that Robolectric was unable to create the Application from my library so i replaced the TestRunner:
import org.junit.runners.model.InitializationError;
import android.app.Application;
import com.xtremelabs.robolectric.RobolectricTestRunner;
public class MyTestRunner extends RobolectricTestRunner {
public MyTestRunner(Class<?> testClass)
throws InitializationError {
super(testClass);
}
#Override protected Application createApplication() {
return new Application() {
};
}
}
and used it instead of the RobolectricTestRunner:
#RunWith(MyTestRunner.class)
The tests are running properly now.