RuntimeException：android.content.Intent中的方法putExtra未被模拟

Question

我正在为应用程序模块编写单元测试。我以某种方式在嘲笑Android调用时遇到问题。我想不要想要为我的测试用例使用InstrumentationTest。

这是我的课程。

package de.mk_xappo.mockitoexample; 

import java.io.Serializable; 

public class SpecialData implements Serializable { 

    int someData_1; 
    int someData_2; 

    public int getSomeData_1() { 
     return someData_1; 
    } 

    public void setSomeData_1(int someData_1) { 
     this.someData_1 = someData_1; 
    } 

    public int getSomeData_2() { 
     return someData_2; 
    } 

    public void setSomeData_2(int someData_2) { 
     this.someData_2 = someData_2; 
    } 
} 

这里是我的发射活动集中经理：

package de.mk_xappo.mockitoexample; 

import android.content.Context; 
import android.content.Intent; 

public class IntentManager { 
    private Context context; 

    public IntentManager(Context context) { 
     this.context = context; 
    } 

    public boolean goToSpecialActivity(SpecialData specialData) { 
     Intent intent = new Intent(context, SpecialActivity.class); 
     intent.putExtra(SpecialActivityManager.INTENT_EXTRA_SPECIAL_DATA, specialData); 
     context.startActivity(intent); 
     return true; 
    } 
} 

这里是我的 “专业” 经理：一个不太重要的模型类开始

包de.mk_xappo.mockitoexample;

import android.app.Activity; 
import android.content.Context; 
import android.content.SharedPreferences; 

public class SpecialActivityManager { 

    private final SharedPreferences sharedPreferences; 
    private final IntentManager intentManager; 
    private boolean specialShouldBeShown = true; 

    public static final String INTENT_EXTRA_SPECIAL_DATA = "INTENT_EXTRA_SPECIAL_DATA"; 

    public SpecialActivityManager(Context context) { 
     sharedPreferences = context.getSharedPreferences(context.getPackageName() + ".special", Activity.MODE_PRIVATE); 
     this.intentManager = new IntentManager(context); 
    } 

    public void showSpecial(SpecialData specialData) { 
     if (specialShouldBeShown) { 
      intentManager.goToSpecialActivity(specialData); 
     } 
    } 
} 

这里是我的单元测试：

包de.mk_xappo.mockitoexample;

import android.content.Context; 
import android.content.Intent; 
import android.content.SharedPreferences; 

import org.junit.Before; 
import org.junit.Test; 

import static org.mockito.Matchers.anyBoolean; 
import static org.mockito.Matchers.anyInt; 
import static org.mockito.Matchers.anyString; 
import static org.mockito.Mockito.mock; 
import static org.mockito.Mockito.verify; 
import static org.mockito.Mockito.when; 

public class SpecialManagerTest { 

    private Context context; 
    private SharedPreferences sharedPreferences; 
    private SharedPreferences.Editor editor; 
    private SpecialActivityManager specialActivityManager; 
    private Intent intent; 

    @Before 
    public void setUp() throws Exception { 
     context = mock(Context.class); 
     intent = mock(Intent.class); 
     sharedPreferences = mock(SharedPreferences.class); 
     editor = mock(SharedPreferences.Editor.class); 

     when(context.getSharedPreferences(anyString(), anyInt())).thenReturn(sharedPreferences); 
     when(sharedPreferences.edit()).thenReturn(editor); 
     when(editor.putBoolean(anyString(), anyBoolean())).thenReturn(editor); 

     specialActivityManager = new SpecialActivityManager(context); 
    } 

    @Test 
    public void testShowSpeciall() throws Exception { 
     SpecialData specialData = mock(SpecialData.class); 
     IntentManager intentManager = mock(IntentManager.class); 

     when(intentManager.goToSpecialActivity(specialData)).thenReturn(true); 

     specialActivityManager.showSpecial(specialData); 

     verify(intent).putExtra(SpecialActivityManager.INTENT_EXTRA_SPECIAL_DATA, specialData); 
     verify(context).startActivity(intent); 
    } 
} 

现在，我得到以下异常：

java.lang.RuntimeException: Method putExtra in android.content.Intent not mocked. See http://g.co/androidstudio/not-mocked for details. 

     at android.content.Intent.putExtra(Intent.java) 
     at de.mk_xappo.mockitoexample.IntentManager.goToSpecialActivity(IntentManager.java:18) 
     at de.mk_xappo.mockitoexample.SpecialActivityManager.showSpecial(SpecialActivityManager.java:23) 
     at de.mk_xappo.mockitoexample.SpecialManagerTest.testShowSpeciall(SpecialManagerTest.java:46) 
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:498) 
     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.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
     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.junit.runners.ParentRunner.run(ParentRunner.java:363) 
     at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
     at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) 
     at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234) 
     at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74) 
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:498) 
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) 

我已经尝试过按照this链接。但我无法验证我的方法调用：

verify(intent).putExtra(SpecialActivityManager.INTENT_EXTRA_SPECIAL_DATA, specialData); 
verify(context).startActivity(intent); 

所以是有可能以某种嘲笑putExtra()方法还是你对我有什么其他的解决办法？

Answer 1

在你的SpecialManagerTest你只需要测试intentManager.goToSpecialActivity(specialData)被调用。

如果新活动开始是IntentManager的责任，那么应该在那里测试。

首先使SpecialManager可测试你需要通过它的属性作为参数（以这种方式，你可以嘲笑他们）：

public class SpecialActivityManager { 

    private final SharedPreferences sharedPreferences; 
    private final IntentManager intentManager; 
    private boolean specialShouldBeShown = true; 

    public static final String INTENT_EXTRA_SPECIAL_DATA = "INTENT_EXTRA_SPECIAL_DATA"; 

    public SpecialActivityManager(Context context, IntentManager intentManager) { 
     sharedPreferences = context.getSharedPreferences(context.getPackageName() + ".special", Activity.MODE_PRIVATE); 
     this.intentManager = intentManager; 
    } 

    public void showSpecial(SpecialData specialData) { 
     if (specialShouldBeShown) { 
      intentManager.goToSpecialActivity(specialData); 
     } 
    } 
} 

那么你的测试应该是：

public class SpecialActivityManagerTest { 

    private IntentManager intentManager; 
    private SpecialActivityManager specialActivityManager; 

    @Before 
    public void setUp() throws Exception { 
     Context context = mock(Context.class); 
     SharedPreferences sharedPreferences = mock(SharedPreferences.class); 
     intentManager = mock(IntentManager.class); 

     when(context.getSharedPreferences(anyString(), anyInt())).thenReturn(sharedPreferences); 

     specialActivityManager = new SpecialActivityManager(context, intentManager); 
    } 

    @Test 
    public void testShowSpeciall() throws Exception { 
     SpecialData specialData = mock(SpecialData.class); 

     specialActivityManager.showSpecial(specialData); 
     verify(intentManager).goToSpecialActivity(specialData); 
    } 
}