我正在尝试使用JavaEE做简单的应用程序,目前我仍然坚持使用arquillian测试。我有一个像这样的BookRepository类:
package com.pluralsight.bookstore.repository;
import javax.transaction.Transactional;
import static javax.transaction.Transactional.TxType.SUPPORTS;
@Transactional(SUPPORTS)
public class BookRepository {
}
测试类BookRepositoryTest:
package com.pluralsight.bookstore.repository;
@RunWith(Arquillian.class)
public class BookRepositoryTest {
@Inject
private BookRepository bookRepository;
@Deployment
public static JavaArchive createDeployment() {
return ShrinkWrap.create(JavaArchive.class)
.addClass(BookRepository.class)
.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml")
.addAsManifestResource("META-INF/test-persistence.xml", "persistence.xml");
}
@Test
public void create() {
assertNotNull(bookRepository);
}
}
运行测试结果:
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 9.864 sec <<< FAILURE!
create(com.pluralsight.bookstore.repository.BookRepositoryTest) Time elapsed: 0.287 sec <<< ERROR!
java.lang.NullPointerException
at com.pluralsight.bookstore.repository.BookRepositoryTest.create(BookRepositoryTest.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
...
没有任何解释。当我用assertNotNull检查时,bookRepository总是为null所以我想这里注入不起作用。项目结构如下所示:
我试着寻找答案已经有一段时间了,我还在同一个地方。对于容器,我使用wildfly远程运行测试,并让WildFly在后台运行。 在此先感谢您的帮助!
答案 0 :(得分:2)
好的,所以我终于成功了。显然我使用了错误的'@Inject'注释。我使用的是arquillian,而不是javax。我改变了
import org.jboss.arquillian.core.api.annotation.Inject;
在我的测试用例类中
import javax.inject.Inject;
它就像一个魅力。真的很烦人追踪,实际上我发现它是运气不好所以我希望这将有助于将来的人。
答案 1 :(得分:0)
Wildfly是符合Java EE 7标准的AS,在JavaEE 7中,默认情况下会发现CDI bean,如果注释,请查看Default CDI Enablement in Java EE 7,这可能是您的bean.xml空。
因此要注入BookRepository
,您必须添加范围注释(请参阅CDI scopes),以获得等级@ApplicationScoped
:
@ApplicationScoped
@Transactional(SUPPORTS)
public class BookRepository {
}
或者您必须使用发现模式all
包含beans.xml,如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
bean-discovery-mode="all">
</beans>
将它放在src / test / resources下,将其包含在您的测试修改中,如下所示:
package com.pluralsight.bookstore.repository;
@RunWith(Arquillian.class)
public class BookRepositoryTest {
@Inject
private BookRepository bookRepository;
@Deployment
public static JavaArchive createDeployment() {
return ShrinkWrap.create(JavaArchive.class)
.addClass(BookRepository.class)
.addAsManifestResource("META-INF/beans.xml", "beans.xml")
.addAsManifestResource("META-INF/test-persistence.xml", "persistence.xml");
}
//...
}