Robolectric：複数のテストを実行すると失敗します

Robolectric 3.0 + GradleSQLite（OpenHelper）をデータベースとして複数のテストを実行しようとしています。各単体テストの実行はうまくいきますが、テストスイート全体を開始すると、2番目のテストで常にRuntimeExceptionが発生します。Robolectric：複数のテストを実行すると失敗します

これは動作しないテストダミーです。

java.lang.RuntimeException: java.lang.IllegalStateException: Illegal connection pointer 1. Current pointers for thread Thread[pool-4-thread-1,5,main] [] 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.execute(ShadowSQLiteConnection.java:470) 
    at org.robolectric.shadows.ShadowSQLiteConnection.nativeResetStatementAndClearBindings(ShadowSQLiteConnection.java:286) 
    at android.database.sqlite.SQLiteConnection.nativeResetStatementAndClearBindings(SQLiteConnection.java) 
    at android.database.sqlite.SQLiteConnection.releasePreparedStatement(SQLiteConnection.java:915) 
    at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:519) 
    at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
    at android.database.sqlite.SQLiteProgram.__constructor__(SQLiteProgram.java:58) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java) 
    at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java) 
    at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469) 
    at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1341) 
    at de.d360.android.sdk.v2.storage.db.datasource.AbstractDataSource.insert(AbstractDataSource.java:78) 
    at de.d360.android.sdk.v2.storage.db.datasource.QueueMessageDataSource.create(QueueMessageDataSource.java:100) 
    at de.d360.android.sdk.v2.net.Queue.addToHttpQueue(Queue.java:185) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1636) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1612) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1651) 
    at de.d360.android.sdk.v2.D360Events.appInstanceUpdated(D360Events.java:359) 
    at de.d360.android.sdk.v2.crm.AppInstanceUpdater.sendUpdateEvent(AppInstanceUpdater.java:27) 
    at de.android.hotel.HotelApplication.onCreate(HotelApplication.java:281) 
    at org.robolectric.internal.ParallelUniverse.setUpApplicationState(ParallelUniverse.java:140) 
    at org.robolectric.RobolectricTestRunner.setUpApplicationState(RobolectricTestRunner.java:433) 
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:240) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) 
    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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78) 
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212) 
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) 
Caused by: java.lang.IllegalStateException: Illegal connection pointer 1. Current pointers for thread Thread[pool-4-thread-1,5,main] [] 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.getConnection(ShadowSQLiteConnection.java:333) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.getStatement(ShadowSQLiteConnection.java:340) 
    at org.robolectric.shadows.ShadowSQLiteConnection.stmt(ShadowSQLiteConnection.java:52) 
    at org.robolectric.shadows.ShadowSQLiteConnection.access$000(ShadowSQLiteConnection.java:33) 
    at org.robolectric.shadows.ShadowSQLiteConnection$16.call(ShadowSQLiteConnection.java:289) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections$6.call(ShadowSQLiteConnection.java:452) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections$6.call(ShadowSQLiteConnection.java:446) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:722) 

java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IllegalStateException: Illegal connection pointer 1. Current pointers for thread Thread[pool-4-thread-1,5,main] [] 
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:244) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) 
    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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78) 
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212) 
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) 
Caused by: java.lang.RuntimeException: java.lang.IllegalStateException: Illegal connection pointer 1. Current pointers for thread Thread[pool-4-thread-1,5,main] [] 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.execute(ShadowSQLiteConnection.java:470) 
    at org.robolectric.shadows.ShadowSQLiteConnection.nativeResetStatementAndClearBindings(ShadowSQLiteConnection.java:286) 
    at android.database.sqlite.SQLiteConnection.nativeResetStatementAndClearBindings(SQLiteConnection.java) 
    at android.database.sqlite.SQLiteConnection.releasePreparedStatement(SQLiteConnection.java:915) 
    at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:519) 
    at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
    at android.database.sqlite.SQLiteProgram.__constructor__(SQLiteProgram.java:58) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java) 
    at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java) 
    at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469) 
    at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1341) 
    at de.d360.android.sdk.v2.storage.db.datasource.AbstractDataSource.insert(AbstractDataSource.java:78) 
    at de.d360.android.sdk.v2.storage.db.datasource.QueueMessageDataSource.create(QueueMessageDataSource.java:100) 
    at de.d360.android.sdk.v2.net.Queue.addToHttpQueue(Queue.java:185) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1636) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1612) 
    at de.d360.android.sdk.v2.D360Events.sendEvent(D360Events.java:1651) 
    at de.d360.android.sdk.v2.D360Events.appInstanceUpdated(D360Events.java:359) 
    at de.d360.android.sdk.v2.crm.AppInstanceUpdater.sendUpdateEvent(AppInstanceUpdater.java:27) 
    at de.android.hotel.HotelApplication.onCreate(HotelApplication.java:281) 
    at org.robolectric.internal.ParallelUniverse.setUpApplicationState(ParallelUniverse.java:140) 
    at org.robolectric.RobolectricTestRunner.setUpApplicationState(RobolectricTestRunner.java:433) 
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:240) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188) 
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) 
    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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) 
    ... 1 more 
Caused by: java.lang.IllegalStateException: Illegal connection pointer 1. Current pointers for thread Thread[pool-4-thread-1,5,main] [] 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.getConnection(ShadowSQLiteConnection.java:333) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections.getStatement(ShadowSQLiteConnection.java:340) 
    at org.robolectric.shadows.ShadowSQLiteConnection.stmt(ShadowSQLiteConnection.java:52) 
    at org.robolectric.shadows.ShadowSQLiteConnection.access$000(ShadowSQLiteConnection.java:33) 
    at org.robolectric.shadows.ShadowSQLiteConnection$16.call(ShadowSQLiteConnection.java:289) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections$6.call(ShadowSQLiteConnection.java:452) 
    at org.robolectric.shadows.ShadowSQLiteConnection$Connections$6.call(ShadowSQLiteConnection.java:446) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:722)

@RunWith(RobolectricGradleTestRunner.class) 
@Config(constants = BuildConfig.class, sdk = 21) 
public class Dummy { 


    @Before 
    public void setUp() throws Exception { 
     // setup activity ... 
    } 

    @Test 
    public void testA() throws Exception { 
     Assert.assertTrue(true); 
    } 

    @Test 
    public void testB() { 
     Assert.assertTrue(true); 
    } 
}

例外はまだ動作しませんでした、FieldNotfoundExceptionまたはNullPointerExceptionが発生して終了し、次のコードを、とのシングルトンをresetingのようないくつかの解決策を試してみました。

@After 
public void finishComponentTesting() { 
    // sInstance is the static variable name which holds the singleton instance 
    resetSingleton(MySQLiteOpenHelper.class, "sInstance"); 
} 

private void resetSingleton(Class clazz, String fieldName) { 
    Field instance; 
    try { 
     instance = clazz.getDeclaredField(fieldName); 
     instance.setAccessible(true); 
     instance.set(null, null); 
    } catch (Exception e) { 
     throw new RuntimeException(); 
    } 
}

編集：D360SdkのAppInstanceUpdaterのsendUpdateEvent（）を削除して修正しました。

AppInstanceUpdater updater = D360Sdk.getCrmAppInstanceUpdater(); 
updater.setCustomId(Util.installId()); 
// updater.sendUpdateEvent();

出典

2016-01-12 user2504611

さらに、アプリケーションクラスのライブラリの初期化もあります。このソリューションを見てみましょうhttp://stackoverflow.com/questions/34695552/robolectric-with-activeandroid-setup-nullpointerexception-on-activeandroidrefle –

+1あなたの解決策です！失敗の2日後、あなたは私の人生をセーブする！リセットされたインスタンスは、まさに私が探していたものでした！ –

これは古い質問ですが、私が似たような問題（まったく同じエラー）に直面していたため、この解決策が役立つかもしれません。

問題は、データベースに複数回アクセスしている複数のテストケースを実行中に、最初のテストケースがデータベースへの接続を開き、それを閉じないということです。 2番目のテストケースがデータベース接続を再度開こうとすると失敗します。

私はいくつかの解決策を読んで、最後にデータベースを複数回開いて問題が発生していることを知りました。だから、成功裡のテストを実行します（あなたのテストケースを書かれている）あなたのTestCase.javaファイルに次の設定を行うには：

@Before 
public void setUp() throws Exception { 
    //Get an instance of your implementation of SQLiteOpenHelper class. 
    //Let's assume the class name is MySQLiteHelper which extends SQLiteOpenHelper and has a function called getInstance 
    //which returns the instance of the SQLiteOpenHelper. 
    //Store this instance in a global variable in your TestCase.java file. 
    databaseHelper = MySQLiteHelper.getInstance(); 
} 

@After 
public void tearDown() throws Exception { 
    //use the instance created in setUp() function to close the database 
    databaseHelper.close(); 
}

の前と後に実行「@Before」と「@After」と注釈を付け上記の二つの機能すべてのテストケース。したがって、各テストケースの後に、データベース接続を閉じる必要があります。

Thisおよびthisリンクが役立ちました。

解決策に問題がある場合、またはこのエラーに関する私の理解が間違っている場合は、ご意見ください。

出典

2016-04-16 13:18:51

@Downvoterここでは何がうまくいかなかったのかご意見ください。 –

Robolectric：複数のテストを実行すると失敗します

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