测试运行失败：由于“进程崩溃”,仪表运行失败.在测试多个Android活动时

我在测试我的android应用程序时遇到了问题.
我有2个testCase类,如果我单独执行它们,没有问题,测试运行到最后.但是,如果我在我的测试项目中“右键单击”并选择“作为Android Junit测试运行”,我会收到一条消息

 Launching instrumentation android.test.InstrumentationTestRunner on device emulator-5554
 [2012-03-27 15:56:27 - matroussedemaquillageTest] Collecting test information
 [2012-03-27 15:56:31 - matroussedemaquillageTest] Test run Failed: Instrumentation run  Failed due to 'Process crashed.'

看到我的两个testClasses吼叫：

第一个测试类

package fr.smardine.matroussedemaquillage.test;

import android.test.ActivityInstrumentationTestCase2;
import android.widget.ImageSwitcher;
import fr.smardine.matroussedemaquillage.EntryPoint;

public class EntryPointTest extends
    ActivityInstrumentationTestCase2<EntryPoint> {

private EntryPoint mActivity;
    private ImageSwitcher mSwitcher;

    public EntryPointtest() {
        super("fr.smardine.matroussedemaquillage",
                fr.smardine.matroussedemaquillage.EntryPoint.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    public void test2() {
        assertEquals(2, 2);
    }
}

第二个：

package fr.smardine.matroussedemaquillage.test;

import android.test.ActivityInstrumentationTestCase2;
import android.widget.ImageView;
import fr.smardine.matroussedemaquillage.Main;

public class MainTest extends ActivityInstrumentationTestCase2<Main> {

    private Main mActivity;
    private ImageView btRemplir;
    private ImageView btPerime;
    private ImageView btNotes;

    public Maintest() {
        super("fr.smardine.matroussedemaquillage",
                fr.smardine.matroussedemaquillage.Main.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }


    public void test1() {
        assertEquals(1, 1);
    }
}

你可以看到我的测试并不那么复杂,即使我在启动我的模拟器时“擦除用户数据”,如果我执行这两个测试也会有相同的信息.
哦,顺便说一句,模拟器在android 2.1下运行,这是我的AndroidManifest.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="fr.smardine.matroussedemaquillage.test"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="7" android:targetSdkVersion="7" />

<instrumentation
    android:name="android.test.InstrumentationTestRunner"
    android:targetPackage="fr.smardine.matroussedemaquillage" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <uses-library android:name="android.test.runner" />
</application>

</manifest>

编辑：
我的原木猫：

I/ActivityManager(64): Start proc fr.smardine.matroussedemaquillage for added application fr.smardine.matroussedemaquillage: pid=510 uid=10029 gids={3003, 1015} 
D/ddm-heap(510): Got feature list request D/dalvikvm(510): GC freed 5427 objects / 420224 bytes in 90ms 
D/dalvikvm(510): GC freed 6498 objects / 506616 bytes in 79ms 
D/dalvikvm(510): GC freed 7048 objects / 567464 bytes in 90ms 
D/dalvikvm(510): GC freed 8628 objects / 503840 bytes in 73ms 
I/System.out(510): Failed to open test.properties 
I/AndroidRuntime(510): AndroidRuntime onExit calling exit(-1) –
D/Zygote(30): Process 510 exited cleanly (255) 
I/ActivityManager(64): Process fr.smardine.matroussedemaquillage (pid 510) has died. 
W/ActivityManager(64): Crash of app fr.smardine.matroussedemaquillage running instrumentation ComponentInfo{fr.smardine.matroussedemaquillage.test/android.test.Instrumentatio‌​nTestRunner} 
D/ActivityManager(64): Uninstalling process fr.smardine.matroussedemaquillage
D/AndroidRuntime(504): Shutting down VM 
D/dalvikvm(504): DestroyJavaVM waiting for non-daemon threads to exit 
D/dalvikvm(504): DestroyJavaVM shutting VM down
D/dalvikvm(504): HeapWorker thread shutting down 
D/dalvikvm(504): HeapWorker thread has shut down 
D/jdwp(504): JDWP shutting down net... 
D/jdwp(504): Got wake-up signal, bailing out of select 
I/dalvikvm(504): Debugger has detached; object registry had 1 entries 
D/dalvikvm(504): VM cleaning up 
D/dalvikvm(504): Linearalloc 0x0 used 643668 of 5242880 (12%) 
I/dalvikvm(504): JNI: AttachCurrentThread (from ???.???) 
E/AndroidRuntime(504): ERROR: thread attach Failed'

解决方法:

当我在我的测试Activity的onFinish上使用System.exit(0)时,我曾经遇到过这个错误,如下所示：

@Override
    public void finish() {
        super.finish();
        System.exit(0);

    }

因此,请检查您的主要活动的onFinish方法.