java-8 - CDI，cdi 单元。尝试注入接口的异常

Question

我使用 cdi-unit 库测试类。测试类：

@RunWith(CdiRunner.class)
public class IAktResponseMapperTest {
    @Inject
    private ITestCDI testCDI;

    @Test
    public void testCDI(){
        testCDI.testCDI();
    }
}

ITestCDI接口：

public interface ITestCDI {
    void testCDI();
}

测试CDI类：

@ApplicationScoped
public class TestCDI implements ITestCDI {
    public void testCDI() {
        System.out.println("testCDI");
    }
}

所以，运行这个测试我得到错误：

org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type ITestCDI with qualifiers @Default
  at injection point [UnbackedAnnotatedField] @Inject private ru.nwth.pio.personal_area.accounting.mapper.IAktResponseMapperTest.testCDI
  at ru.nwth.pio.personal_area.accounting.mapper.IAktResponseMapperTest.testCDI(IAktResponseMapperTest.java:0)

但是如果我直接注入TestCDI类而不是接口ITestCDI，就可以了。如何使界面正常工作？感谢帮助！

Answer 1

CDI-Unit 不会扫描你包的所有类，所以不知道TestCDI. 您可以ITestCDI使用 CDI-Unit 或注释来控制 CDI@AdditionalClasses环境。@AdditionalPackages@AdditionalClasspath

在您的情况下，添加例如@AdditionalClasses(TestCDI.class)注释：

@RunWith(CdiRunner.class)
@AdditionalClasses(TestCDI.class) 
public class IAktResponseMapperTest {
    @Inject
    private ITestCDI testCDI;

    @Test
    public void testCDI(){
        testCDI.testCDI();
    }
}