运行lagom测试时的注射器错误
问题描述:
我使用Lagom框架并通过mvn测试运行测试。测试失败,出现com.google.inject.CreationException。栈跟踪是运行lagom测试时的注射器错误
com.google.inject.CreationException: Unable to create injector, see
the following errors:
1) No implementation for
com.lightbend.lagom.javadsl.persistence.PersistentEntityRegistry was
bound.
while locating
com.lightbend.lagom.javadsl.persistence.PersistentEntityRegistry
for parameter 0 at com.pv.svc.chat.impl.ChatServiceImpl.<init>
(ChatServiceImpl.java:45)
at
com.lightbend.lagom.javadsl.server.ServiceGuiceSupport.
bindServices(ServiceGuiceSupport.java:74) (via modules:
com.google.inject.util.Modules$OverrideModule ->
com.pv.svc.chat.impl.ChatServiceModule)
2) No implementation for
com.lightbend.lagom.javadsl.persistence.ReadSide was bound.
while locating com.lightbend.lagom.javadsl.persistence.ReadSide
for parameter 1 at com.pv.svc.chat.impl.ChatServiceImpl.<init>
(ChatServiceImpl.java:45)
at
com.lightbend.lagom.javadsl.server.ServiceGuiceSupport.
bindServices(ServiceGuiceSupport.java:74) (via modules:
com.google.inject.util.Modules$OverrideModule ->
com.pv.svc.chat.impl.ChatServiceModule)
3) No implementation for
com.lightbend.lagom.javadsl.persistence.jdbc.JdbcSession was bound.
while locating
com.lightbend.lagom.javadsl.persistence.jdbc.JdbcSession
for parameter 2 at com.pv.svc.chat.impl.ChatServiceImpl.<init>
(ChatServiceImpl.java:45)
at
com.lightbend.lagom.javadsl.server.ServiceGuiceSupport.
bindServices(ServiceGuiceSupport.java:74) (via modules:
com.google.inject.util.Modules$OverrideModule ->
com.pv.svc.chat.impl.ChatServiceModule)
3 errors
at
com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist
(Errors.java:466)
at
com.google.inject.internal.InternalInjectorCreator.
initializeStatically(InternalInjectorCreator.java:155)
at
com.google.inject.internal.InternalInjectorCreator.build
(InternalInjectorCreator.java:107)
at com.google.inject.Guice.createInjector(Guice.java:96)
at com.google.inject.Guice.createInjector(Guice.java:84)
at play.api.inject.guice.GuiceBuilder.injector
(GuiceInjectorBuilder.scala:181)
at play.inject.guice.GuiceBuilder.injector
(GuiceBuilder.java:208)
at play.inject.guice.GuiceApplicationBuilder.build
(GuiceApplicationBuilder.java:127)
at com.lightbend.lagom.javadsl.testkit.ServiceTest$.startServer
(ServiceTest.scala:282)
at com.lightbend.lagom.javadsl.testkit.ServiceTest.startServer
(ServiceTest.scala)
at com.pv.svc.chat.impl.ChatServiceTest.setUp
(ChatServiceTest.java:28)
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:47)
at org.junit.internal.runners.model.ReflectiveCallable.run
(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively
(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.RunBefores.evaluate
(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate
(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute
(JUnit4Provider.java:252)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet
(JUnit4Provider.java:141)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke
(JUnit4Provider.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0
(Native Method)
.....
据我所知,Lagom没有在运行测试时注入依赖项。我正在使用JDBC持久实体和读取端。有什么办法可以解决这个问题吗?我的服务器设置为测试
private static TestServer server;
@BeforeClass
public static void setUp() {
server = ServiceTest.startServer(defaultSetup());
}
@AfterClass
public static void tearDown() {
if (server != null) {
server.stop();
server = null;
}
}
我知道卡桑德拉,我们必须使用defaultSetup()。withCassandra(真),但对于JDBC?我也使用Kakfa来接收消息。请帮忙。
答
您需要卡桑德拉添加到您的设置
@BeforeClass
public static void setUp() {
server = ServiceTest.startServer(defaultSetup().withCassandra(true));
}
嗨shik9,Lagom的testkit只支持在目前(不JDBC)卡桑德拉后端。有关更新,请参阅https://github.com/lagom/lagom/issues/304。 – ignasi35
Hi @ ignasi35,我认为这是不可能的,但有没有什么办法来模拟整个数据库的事情。我需要三件事PersistentEntityRegistry,ReadSide和JdbcSession。 – konghoho