这是我的测试方法的样子：
@RunWith(RobolectricTestRunner.class)
public class TestMyApplication{
private About aboutActivity;
@Test
public void AboutActivityTest() throws Exception{
aboutActivity = new About();
aboutActivity.onCreate(null);
TextView aboutInfo = (TextView) sobreActivity.findViewById(R.id.text_version);
assertThat(sobreInfo.getText().toString(), equalTo("My Application v1.0"));
}
}
aboutActivity.onCreate（null）行;运行此测试时抛出以下异常
java.lang.RuntimeException: error inflating layout/about
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:336)
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:102)
at android.app.Activity.setContentView(Activity.java)
at br.com.About.onCreate(About.java:22)
at br.com.MyApplication.AboutActivityTest(MyApplication.java:48)
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.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at com.xtremelabs.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:269)
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:178)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.create(ViewLoader.java:158)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:133)
at com.xtremelabs.robolectric.res.ViewLoader$ViewNode.inflate(ViewLoader.java:136)
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:336)
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:100)
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:102)
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:100)
at com.xtremelabs.robolectric.bytecode.RobolectricInternals.methodInvoked(RobolectricInternals.java:111)
at android.app.Activity.setContentView(Activity.java)
at br.com.About.onCreate(Sobre.java:22)
at br.com.TestMyApplication.AboutActivityTest(TestMyApplication.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)
... 21 more
Caused by: java.lang.NullPointerException
at br.com.getCustomFont(FontsUtil.java:20)
at br.com.ActionBar.<init>(ActionBar.java:69)
... 56 more
只有当我从about.xml布局文件中注释以下视图（自定义RelativeLayout）时，我的测试才能完美运行：
<br.com.componente.ActionBar
android:id="@+id/actionbar"
style="@style/ActionBar"
android:layout_alignParentTop="true"/>
我无法从xml文件中删除此视图，因为我也需要对其进行测试。有谁知道如何解决它？
由于
答案 0 :(得分：2)
我在项目中包含的第三方库（可能与自定义属性相关）存在类似问题。 I solved it by adding a function to inflate the custom view and neuter it in the test.然后，您可以为自定义小部件编写单独的测试类。
答案 1 :(得分：0)
最新版本的Robolectric版本2解决了这个问题。