Java androidx.sqlite.db.framework.FrameworkSQLiteDatabase.inTransaction处的NullPointerException-Android Room
在单元测试项目中,我试图查询实体Java androidx.sqlite.db.framework.FrameworkSQLiteDatabase.inTransaction处的NullPointerException-Android Room,java,android,sqlite,android-room,Java,Android,Sqlite,Android Room,在单元测试项目中,我试图查询实体端点,但我遇到了以下错误: java.lang.NullPointerException at androidx.sqlite.db.framework.FrameworkSQLiteDatabase.inTransaction(FrameworkSQLiteDatabase.java:100) at androidx.room.InvalidationTracker.syncTriggers(InvalidationTracker.java:48
端点
,但我遇到了以下错误:
java.lang.NullPointerException
at androidx.sqlite.db.framework.FrameworkSQLiteDatabase.inTransaction(FrameworkSQLiteDatabase.java:100)
at androidx.room.InvalidationTracker.syncTriggers(InvalidationTracker.java:480)
at androidx.room.RoomDatabase.beginTransaction(RoomDatabase.java:353)
at com.mypackged.data.dao.ConfigurationDao_Impl.setUpdateEndPointConfig(ConfigurationDao_Impl.java:120)
at com.mypackged.business.server.ServicioGeneralTests.test_just_run_please(ServicioGeneralTests.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.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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)
at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
下面是我试图使用MockitoJUnitRunner
测试的代码:
@Test
public void test_just_run_please() throws InterruptedException {
assertNotNull(context);
CIDatabase db = Room.databaseBuilder(context, CIDatabase.class, CIDatabase.DB_NAME)
.allowMainThreadQueries()
.build();
assertNotNull(db);
ConfigurationDao configdao = db.getConfiguracionDao();
assertNotNull(configdao);
EndPointConfig endPointConfig1 = new EndPointConfig();
endPointConfig1.setUrl("url");
configdao.setUpdateEndPointConfig(endPointConfig1); // <--- NullPointerException here
EndPointConfig endPointConfig = configdao.getEndpointConfig();
assertNull(endPointConfig);
}
道:
数据库:
@Database(entities = {TitularCuenta.class, Familiar.class, Parentesco.class, AppConfiguration.class, EndPointConfig.class} , version = 2)
public abstract class CIDatabase extends RoomDatabase {
public static final String DB_NAME = "please_work_database";
public abstract ConfigurationDao getConfiguracionDao();
// more dao methods...
}
这里是gradle依赖项:
implementation "android.arch.persistence.room:runtime:2.2.4"
implementation "android.arch.persistence.room:compiler:2.2.4"
implementation "androidx.room:room-runtime:$room_version"
kapt "android.arch.persistence.room:compiler:1.0.0"
如果导航到androidx.sqlite.db.framework.FrameworkSQLiteDatabase.inTransaction
方法,下面是引发错误的行:
@Override
public boolean inTransaction() {
return mDelegate.inTransaction();
}
implementation "android.arch.persistence.room:runtime:2.2.4"
implementation "android.arch.persistence.room:compiler:2.2.4"
implementation "androidx.room:room-runtime:$room_version"
kapt "android.arch.persistence.room:compiler:1.0.0"
@Override
public boolean inTransaction() {
return mDelegate.inTransaction();
}