android - 如何使用 Robolectric 2.2 测试 ListView？它说 android.widget.ListView 还没有实现

Question

当我在我的 ListActivity 上使用 Robolectric 2.2 运行 JUnit 测试时，我收到一个 InflateException，指出 ListView 未实现。我该如何解决这个问题？我一直在调查使用 .shadowOf() 的方法，但我不确定该怎么做。

这是堆栈跟踪:

        android.view.InflateException: XML file ./res/layout/activity_main.xml line #-1 (sorry, not yet implemented): Error inflating class android.widget.ListView        at android.view.LayoutInflater.createView(LayoutInflater.java:613)        at org.robolectric.shadows.RoboLayoutInflater.onCreateView(RoboLayoutInflater.java:38)        at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)        at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)        at android.view.LayoutInflater.inflate(LayoutInflater.java:489)        at android.view.LayoutInflater.inflate(LayoutInflater.java:396)        at android.view.LayoutInflater.inflate(LayoutInflater.java:352)        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256)        at android.app.Activity.setContentView(Activity.java:1867)        at com.jch.latransit.MainActivity.onCreate(MainActivity.java:43)        at android.app.Activity.performCreate(Activity.java:5008)        at org.fest.reflect.method.Invoker.invoke(Invoker.java:112)        at org.robolectric.util.ActivityController$1.run(ActivityController.java:116)        at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:256)        at org.robolectric.util.ActivityController.create(ActivityController.java:111)        at org.robolectric.util.ActivityController.create(ActivityController.java:123)        at com.jch.latransit.domain.TestTimeStamp.setUp(TestTimeStamp.java:33)        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 org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)        at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:234)        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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)        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)    Caused by: java.lang.reflect.InvocationTargetException        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createView(LayoutInflater.java:587)        at android.view.LayoutInflater.createView(LayoutInflater.java)        at org.robolectric.shadows.RoboLayoutInflater.onCreateView(RoboLayoutInflater.java:38)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_onCreateView(LayoutInflater.java:660)        at android.view.LayoutInflater.onCreateView(LayoutInflater.java)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createViewFromTag(LayoutInflater.java:685)        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_rInflate(LayoutInflater.java:746)        at android.view.LayoutInflater.rInflate(LayoutInflater.java)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_inflate(LayoutInflater.java:489)        at android.view.LayoutInflater.inflate(LayoutInflater.java)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_inflate(LayoutInflater.java:396)        at android.view.LayoutInflater.inflate(LayoutInflater.java)        at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_inflate(LayoutInflater.java:352)        at android.view.LayoutInflater.inflate(LayoutInflater.java)        at com.android.internal.policy.impl.PhoneWindow.$$robo$$PhoneWindow_1a87_setContentView(PhoneWindow.java:256)        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java)        at android.app.Activity.$$robo$$Activity_c57b_setContentView(Activity.java:1867)        at android.app.Activity.setContentView(Activity.java)        at com.jch.latransit.MainActivity.onCreate(MainActivity.java:43)        at android.app.Activity.$$robo$$Activity_c57b_performCreate(Activity.java:5008)        at android.app.Activity.performCreate(Activity.java)        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)        at java.lang.reflect.Method.invoke(Method.java:606)        at org.fest.reflect.method.Invoker.invoke(Invoker.java:112)        at org.robolectric.util.ActivityController$1.run(ActivityController.java:116)        at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:256)        at org.robolectric.util.ActivityController.create(ActivityController.java:111)        at org.robolectric.util.ActivityController.create(ActivityController.java:123)        at com.jch.latransit.domain.TestTimeStamp.setUp(TestTimeStamp.java:33)        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)        at java.lang.reflect.Method.invoke(Method.java:606)        ... 23 more    Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -9        at java.lang.String.substring(String.java:1911)        at org.robolectric.res.ResName.qualifyResName(ResName.java:50)        at org.robolectric.res.Attribute.getResourceReference(Attribute.java:138)        at org.robolectric.res.Attribute.qualifiedValue(Attribute.java:127)        at org.robolectric.res.builder.XmlFileBuilder$XmlResourceParserImpl.qualify(XmlFileBuilder.java:316)        at org.robolectric.res.builder.XmlFileBuilder$XmlResourceParserImpl.getAttributeValue(XmlFileBuilder.java:340)        at org.robolectric.shadows.ShadowResources.findAttributeValue(ShadowResources.java:257)        at org.robolectric.shadows.ShadowResources.attrsToTypedArray(ShadowResources.java:193)        at org.robolectric.shadows.ShadowResources.access$000(ShadowResources.java:52)        at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:465)        at android.content.res.Resources$Theme.obtainStyledAttributes(Resources.java)        at android.content.Context.obtainStyledAttributes(Context.java:374)        at android.view.View.__constructor__(View.java:3297)        at org.fest.reflect.method.Invoker.invoke(Invoker.java:112)        at org.robolectric.shadows.ShadowView.__constructor__(ShadowView.java:61)        at android.view.View.(View.java:3295)        at android.view.ViewGroup.(ViewGroup.java:427)        at android.widget.AdapterView.(AdapterView.java:235)        at android.widget.AbsListView.(AbsListView.java:758)        at android.widget.ListView.(ListView.java:141)        at android.widget.ListView.(ListView.java:137)        at android.view.LayoutInflater.createView(LayoutInflater.java:587)        at org.robolectric.shadows.RoboLayoutInflater.onCreateView(RoboLayoutInflater.java:38)        at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)        at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)        at android.view.LayoutInflater.inflate(LayoutInflater.java:489)        at android.view.LayoutInflater.inflate(LayoutInflater.java:396)        at android.view.LayoutInflater.inflate(LayoutInflater.java:352)        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256)        at android.app.Activity.setContentView(Activity.java:1867)        at com.jch.latransit.MainActivity.onCreate(MainActivity.java:43)        at android.app.Activity.performCreate(Activity.java:5008)        at org.fest.reflect.method.Invoker.invoke(Invoker.java:112)        at org.robolectric.util.ActivityController$1.run(ActivityController.java:116)        at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:256)        at org.robolectric.util.ActivityController.create(ActivityController.java:111)        at org.robolectric.util.ActivityController.create(ActivityController.java:123)        at com.jch.latransit.domain.TestTimeStamp.setUp(TestTimeStamp.java:33)        ... 23 more

这是我的 activity_main.xml:

        xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    机器人:方向=“垂直”
    工具:context=".MainActivity">

    < ListView 
        android:id="@+id/android:list"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:fastScrollEnabled="true">
    
    

    < TextView 
        android:id="@+id/android:empty"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>


    

这里是加载activity_main.xml的onCreate()方法:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mListAdapter = new ArrayAdapter
    
     (this, R.layout.route_item, R.id.list_item);
     
 setListAdapter(mListAdapter);
     

     
 showProgDialog(this, "加载路线...");
     
 新的 GetRoutesTask().execute("http://"+ getString(R.string.la_metro_query_host)
     
 + getString(R.string.la_metro_route_query));
     
}
     

    

Answer 1

失败的根本原因是这样的:

java.lang.StringIndexOutOfBoundsException: String index out of range: -9

我怀疑 Robolectric 没有正确解析 android:id 引用。尝试将 id 更改为项目中生成的内容，例如 android:id="+id/list" 并查看您的测试是否有效。