对于dagger2模块@ModulepublicclassMyModule{@Provides@SingletonpublicRestServiceprovideRestService(){returnnewRestService();}@Provides@SingletonpublicMyPrinterprovideMyPrinter(){returnnewMyPrinter();}}我们可以将测试模块作为测试publicclassTestModuleextendsMyModule{@OverridepublicMyPrinterprovideMyPrinter(){returnMo