问题描述
我开始Android Studio中使用Robolectric。起初我想创建一个使用hamcrest一个简单的测试，如下图所示：
I am starting to use Robolectric in Android Studio. At first I wanted to create a simple test using hamcrest, which is shown below:
@RunWith(CustomTestRunner.class)
@Config(emulateSdk = 18)
public class MainActivityTest {
private MainActivity mainActivity;
@Test
public void testMainActivity() {
mainActivity = buildActivity(MainActivity.class).create().get();
assertThat(mainActivity, notNullValue());
}
}
在执行测试抛出以下异常：
When executing the test throws the following exception:
java.lang.ClassCastException: java.lang.NoSuchMethodError cannot be cast to java.lang.RuntimeException
at org.robolectric.internal.ReflectionHelpers.callInstanceMethodReflectively(ReflectionHelpers.java:68)
at org.robolectric.util.ActivityController$1.run(ActivityController.java:115)
at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:268)
at org.robolectric.util.ActivityController.create(ActivityController.java:111)
at org.robolectric.util.ActivityController.create(ActivityController.java:122)
at com.enprodo.wakemethere.googleservices.geofence.GeofenceTest.testReceiver(GeofenceTest.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:236)
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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:158)
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:74)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
的 CustomTestRunner 类看起来是这样的：
public class CustomTestRunner extends RobolectricTestRunner {
public CustomTestRunner(Class<?> testClass) throws InitializationError {
super(testClass);
}
@Override
protected AndroidManifest getAppManifest(Config config) {
String manifestProperty = System.getProperty("android.manifest");
if (config.manifest().equals(Config.DEFAULT) && manifestProperty != null) {
String resProperty = System.getProperty("android.resources");
String assetsProperty = System.getProperty("android.assets");
AndroidManifest androidManifest = new AndroidManifest(
Fs.fileFromPath(manifestProperty),
Fs.fileFromPath(resProperty),
Fs.fileFromPath(assetsProperty));
androidManifest.setPackageName("com.package");
return androidManifest;
}
return super.getAppManifest(config);
}
}
我可以添加MainActivity延伸 android.support.v7.app.ActionBarActivity ，但我不知道如果影响的行为。
I can add that MainActivity extends android.support.v7.app.ActionBarActivity but I have no idea if that affects the behaviour.
在Robolectric源一些挖后，它出现的错误这是执行的时候出现：
After some digging in the Robolectric source it appears the error appears when this is executed:
ReflectionHelpers.callInstanceMethodReflectively(component, "performCreate", new ReflectionHelpers.ClassParameter(Bundle.class, bundle));
callInstanceMethodReflectively 的code是这样的：
public static <R> R callInstanceMethodReflectively(final Object instance, final String methodName, ClassParameter... classParameters) {
try {
final Class[] classes = ClassParameter.getClasses(classParameters);
final Object[] values = ClassParameter.getValues(classParameters);
return traverseClassHierarchy(instance.getClass(), NoSuchMethodException.class, new InsideTraversal<R>() {
@Override
public R run(Class traversalClass) throws Exception {
Method declaredMethod = traversalClass.getDeclaredMethod(methodName, classes);
declaredMethod.setAccessible(true);
return (R) declaredMethod.invoke(instance, values);
}
});
} catch (InvocationTargetException e) {
throw (RuntimeException) e.getTargetException();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
我不是专家反映，但似乎不知何故的 performCreate 的方法不能被发现。有没有人遇到过类似的问题？没有人有任何想法可能是什么问题？
I am not a reflection expert, but it seems that somehow the performCreate method cannot be found. Has anyone encountered similar issue? Does anyone have any idea what could be the problem?
推荐答案
在多一些挖似乎与Robolectric 2.4一些问题与 ActionBarActivity 出现。据完全支持应用程序兼容性-V7 将在Robolectric 3.0提供。事实上，试图Robolectric 3.0快照解决了问题。
After some more digging it appears that with Robolectric 2.4 some issues with ActionBarActivity appear. According to this issue full support for appcompat-v7 will be provided in Robolectric 3.0. Indeed trying Robolectric 3.0-SNAPSHOT solved the issue.
这篇关于在创建活动时Robolectric 2.4的NoSuchMethodError不能转换为RuntimeException的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！