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测试自定义视图与Robolectric

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本文介绍了测试自定义视图与Robolectric的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图用Robolectric 2.1.1运行单元测试，我不能让它膨胀的自定义布局（如ViewPagerIndicator类）。假设这是我的布局：

I'm trying to run unit tests with Robolectric 2.1.1 and I cannot get it to inflate custom layouts (e.g. ViewPagerIndicator classes).Suppose this is my layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="test"
            android:id="@+id/test_test"/>

    <com.viewpagerindicator.CirclePageIndicator
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>

</LinearLayout>

考虑一下我的测试类：

Consider this my test class:

@RunWith(RobolectricTestRunner.class)
public class TestRoboActivityTest {
    private TestRoboActivity mActivity;

    @Before
    public void setUp() throws Exception {
        mActivity = Robolectric.buildActivity(TestRoboActivity.class).create().get();
    }

    @After
    public void tearDown() throws Exception {
        mActivity = null;
    }

    @Test
    public void testSanity() throws Exception {
        Assert.assertNotNull(mActivity);
    }
}

执行MVN干净的测试，结果

Executing 'mvn clean test' results in 


Tests in error:
testSanity(TestRoboActivityTest): XML file .\res\layout\test.xml line #-1 (sorry, not yet implemented): Error inflating class com.viewpagerindicator.CirclePageIndicator

酷，尚不支持所以它看起来像自定义视图。检查他们的website,一个解决办法可能是从LayoutInflater膨胀的布局：

Cool, so it seems like custom views aren't supported yet. Checking the sample Robolectric project on their website,one solution could be to inflate the layout from LayoutInflater:

@RunWith(RobolectricTestRunner.class)
public class TestRoboActivityTest {
    private View mTestRoboActivityView;

    @Before
    public void setUp() throws Exception {
        mTestRoboActivityView = LayoutInflater.from(new Activity()).inflate(R.layout.test, null);
    }

    @After
    public void tearDown() throws Exception {
        mTestRoboActivityView = null;
    }

    @Test
    public void testSanity() throws Exception {
        Assert.assertNotNull(mTestRoboActivityView);
    }
}

这会导致：


Tests in error:
testSanity(TestRoboActivityTest): XML file .\res\layout\test.xml line #-1 (sorry, not yet implemented): Error inflating class com.viewpagerindicator.CirclePageIndicator

我的最后一招是想用暗影类：

My last resort was trying to use shadow classes: 

@Implements(CirclePageIndicator.class)
public class CirclePageIndicatorShadow implements PageIndicator {

    @Override
    @Implementation
    public void setViewPager(ViewPager view) {
        // Stub
    }

    // etc.
}

和使用 @Config（阴影= {CirclePageIndicatorShadow.class}）。这又导致了


Tests in error:
testSanity(TestRoboActivityTest): XML file .\res\layout\test.xml line #-1 (sorry, not yet implemented): Error inflating class com.viewpagerindicator.CirclePageIndicator

修改（2014年12月）

请注意，以下stracktrace是由大卫·拉比诺维茨以后添加。虽然相关的，这不是我所面临的时间问题。

Please note that the following stracktrace was added later by David Rabinowitz. While related, it is not the issue I was facing at the time.

下面是堆栈跟踪：

android.view.InflateException: XML file .\res\layout\activity_home.xml line #-1 (sorry, not yet implemented): Error inflating class com.test.custom.RobotoTextView
    at android.view.LayoutInflater.createView(LayoutInflater.java:613)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
    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 org.robolectric.tester.android.view.RoboWindow.setContentView(RoboWindow.java:82)
    at org.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:273)
    at android.app.Activity.setContentView(Activity.java)
    at com.example.testrobocustomfont.MainActivity.onCreate(MainActivity.java:12)
    at com.example.testrobocustomfont.MainActivityTest.setUp(MainActivityTest.java:28)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:241)
    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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:177)
    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.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:525)
    at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createView(LayoutInflater.java:587)
    at android.view.LayoutInflater.createView(LayoutInflater.java)
    at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createViewFromTag(LayoutInflater.java:687)
    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 org.robolectric.tester.android.view.RoboWindow.setContentView(RoboWindow.java:82)
    at org.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:273)
    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:601)
    at org.robolectric.bytecode.ShadowWrangler$ShadowMethodPlan.run(ShadowWrangler.java:455)
    at android.app.Activity.setContentView(Activity.java)
    at com.example.testrobocustomfont.MainActivity.onCreate(MainActivity.java:12)
    at com.example.testrobocustomfont.MainActivityTest.setUp(MainActivityTest.java:28)
    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:601)
    ... 22 more
Caused by: java.lang.RuntimeException: error converting RobotoMedium.ttf using EnumConverter
    at org.robolectric.shadows.Converter.convertAndFill(Converter.java:150)
    at org.robolectric.shadows.Converter.convertAndFill(Converter.java:50)
    at org.robolectric.shadows.ShadowResources.createTypedArray(ShadowResources.java:228)
    at org.robolectric.shadows.ShadowResources.attrsToTypedArray(ShadowResources.java:203)
    at org.robolectric.shadows.ShadowResources.access$000(ShadowResources.java:51)
    at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:460)
    at android.content.res.Resources$Theme.obtainStyledAttributes(Resources.java)
    at android.widget.TextView.__constructor__(TextView.java:561)
    at android.widget.TextView.<init>(TextView.java:447)
    at android.widget.TextView.<init>(TextView.java:442)
    at com.test.custom.RobotoTextView.<init>(RobotoTextView.java:16)
    at android.view.LayoutInflater.createView(LayoutInflater.java:587)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
    at org.robolectric.tester.android.view.RoboWindow.setContentView(RoboWindow.java:82)
    at org.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:273)
    at android.app.Activity.setContentView(Activity.java)
    at com.example.testrobocustomfont.MainActivity.onCreate(MainActivity.java:12)
    at com.example.testrobocustomfont.MainActivityTest.setUp(MainActivityTest.java:28)
    ... 22 more
Caused by: java.lang.RuntimeException: no value found for RobotoMedium.ttf
    at org.robolectric.shadows.Converter$EnumOrFlagConverter.findValueFor(Converter.java:375)
    at org.robolectric.shadows.Converter$EnumConverter.fillTypedValue(Converter.java:343)
    at org.robolectric.shadows.Converter$EnumConverter.fillTypedValue(Converter.java:336)
    at org.robolectric.shadows.Converter.convertAndFill(Converter.java:148)
    at org.robolectric.shadows.Converter.convertAndFill(Converter.java:50)
    at org.robolectric.shadows.ShadowResources.createTypedArray(ShadowResources.java:228)
    at org.robolectric.shadows.ShadowResources.attrsToTypedArray(ShadowResources.java:203)
    at org.robolectric.shadows.ShadowResources.access$000(ShadowResources.java:51)
    at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:460)
    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:601)
    at org.robolectric.bytecode.ShadowWrangler$ShadowMethodPlan.run(ShadowWrangler.java:455)
    at android.content.res.Resources$Theme.obtainStyledAttributes(Resources.java)
    at android.widget.TextView.$$robo$$TextView_347d___constructor__(TextView.java:561)
    at android.widget.TextView.<init>(TextView.java:447)
    at android.widget.TextView.<init>(TextView.java:442)
    at com.test.custom.RobotoTextView.<init>(RobotoTextView.java:16)
    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:525)
    at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createView(LayoutInflater.java:587)
    at android.view.LayoutInflater.createView(LayoutInflater.java)
    at android.view.LayoutInflater.$$robo$$LayoutInflater_1d1f_createViewFromTag(LayoutInflater.java:687)
    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 org.robolectric.tester.android.view.RoboWindow.setContentView(RoboWindow.java:82)
    at org.robolectric.shadows.ShadowActivity.setContentView(ShadowActivity.java:273)
    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:601)
    at org.robolectric.bytecode.ShadowWrangler$ShadowMethodPlan.run(ShadowWrangler.java:455)
    at android.app.Activity.setContentView(Activity.java)
    at com.example.testrobocustomfont.MainActivity.onCreate(MainActivity.java:12)
    at com.example.testrobocustomfont.MainActivityTest.setUp(MainActivityTest.java:28)
    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:601)
    ... 22 more

请问你们，请点我在正确的方向？我的想法。谢谢你。

Could you guys please point me in the right direction? I'm out of ideas.Thanks.

推荐答案

mTestRoboActivityView = LayoutInflater.from（新的活动（））膨胀（R.layout.test，NULL）;

在这行code您使用新的活动（）是指新的活动实例，那不是你当前活动。你可以通过实例上的当前活动解决此问题。使用这样的 -

In this line of code you used 'new Activity()' means instance of new Activity, that not for your current Activity.You can resolve this issue by passing instance on current Activity.Use like this-

public class TestRoboActivityTest {
private View mTestRoboActivityView;
private Context mContext;

public TestRoboActivityTest(Context mContext){
    this.mContext=mContext;
}

@Before
public void setUp() throws Exception {
    mTestRoboActivityView = (LayoutInflater.from(mContext)).inflate(R.layout.test, null);
}

@After
public void tearDown() throws Exception {
    mTestRoboActivityView = null;
}

@Test
public void testSanity() throws Exception {
    Assert.assertNotNull(mTestRoboActivityView);
}}

我不知道上面code工作正常，但借鉴当前活动的，实例。请参阅它可以帮助你。

I am not sure that above code working fine but use for reference, instance of current Activity.Refer it may be help you.

这篇关于测试自定义视图与Robolectric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！

07-29 20:50
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