Objectify事務在單元測試中失敗

非常簡單的Objectify事務的單元測試總是失敗：「僅在高複製應用程序中允許多個實體組的事務」。每當只有一個實體在案件中使用。這樣的事務在dev服務器和Google實例上都能很好地執行。所以我可能需要一些LocalServiceTestHelper調整。任何人都可以幫忙嗎？Objectify事務在單元測試中失敗

這裏是我的單元測試：

@Test 
public void transactionTest() { 
    // setup 
    final LocalServiceTestHelper helper = new LocalServiceTestHelper(
      new LocalDatastoreServiceTestConfig(), 
      new LocalMemcacheServiceTestConfig());  
    helper.setUp(); 
    Closeable session = ObjectifyService.begin(); 

    // test 
    ofy().transactNew(new VoidWork() { 
     @Override 
     public void vrun() { 
      User user = new User(); 
      ofy().save().entity(user).now(); 
     } 
    }); 

    // teardown 
    helper.tearDown(); 
    session.close(); 
    session = null; 
}

這裏是例外，我得到：

Mar 17, 2016 8:52:12 AM com.google.appengine.api.datastore.dev.LocalDatastoreService init 
INFO: Local Datastore initialized: 
Type: Master/Slave 
Storage: In-memory 
Mar 17, 2016 8:52:13 AM com.googlecode.objectify.impl.TransactorNo transactOnce 
SEVERE: Rollback failed, suppressing error 
java.lang.IllegalArgumentException: transactions on multiple entity groups only allowed in High Replication applications 
at com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:54) 
at com.google.appengine.api.datastore.DatastoreApiHelper$1.convertException(DatastoreApiHelper.java:129) 
at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:96) 
at com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:76) 
at com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:36) 
at com.google.appengine.api.datastore.InternalTransactionV3.getHandle(InternalTransactionV3.java:43) 
at com.google.appengine.api.datastore.InternalTransactionV3.getId(InternalTransactionV3.java:81) 
at com.google.appengine.api.datastore.TransactionImpl.getId(TransactionImpl.java:111) 
at com.google.appengine.api.datastore.TransactionStackImpl.getTransactionData(TransactionStackImpl.java:107) 
at com.google.appengine.api.datastore.TransactionStackImpl.getFutures(TransactionStackImpl.java:117) 
at com.google.appengine.api.datastore.TransactionImpl.rollbackAsync(TransactionImpl.java:188) 
at com.google.appengine.api.datastore.TransactionImpl.rollback(TransactionImpl.java:181) 
at com.googlecode.objectify.util.cmd.TransactionWrapper.rollback(TransactionWrapper.java:42) 
at com.googlecode.objectify.impl.TransactorNo.transactOnce(TransactorNo.java:131) 
at com.googlecode.objectify.impl.TransactorNo.transactNew(TransactorNo.java:97) 
at com.googlecode.objectify.impl.ObjectifyImpl.transactNew(ObjectifyImpl.java:206) 
at com.googlecode.objectify.impl.ObjectifyImpl.transactNew(ObjectifyImpl.java:198) 
at cz.inited.ofy.controllers.TransactionTest.transactionTest(TransactionTest.java:33) 
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:497) 
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.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:86) 
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

來源

2016-03-17 Jarda Pavlíček

是否'LocalDatastoreServiceTestConfig（）setDefaultHighRepJobPolicyUnappliedJobPercentage（100）'幫助？我記得在JUnit測試中有一個Objectify事務出現問題，但不記得確切的錯誤。 – tx802

你必須明確地啓用HRD - 這是一個有點奇怪，因爲當前的主/從數據存儲不再存在：

private final LocalServiceTestHelper helper = 
     new LocalServiceTestHelper(
       new LocalDatastoreServiceTestConfig().setApplyAllHighRepJobPolicy());

來源

2016-03-17 15:57:14 stickfigure

非常感謝，它幫助。 –

Objectify事務在單元測試中失敗

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