模拟OSGi上下文中的服务激活异常

时间:2018-01-31 20:37:25

标签: unit-testing osgi aem sling

在我的Maven项目中,我创建了一个简单的OSGi服务,它只接受一个引用:

import org.apache.sling.api.resource.ResourceResolverFactory;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

@Component
public class MyFoo {
    @Reference
    private ResourceResolverFactory factory;
}

然后,使用osgi-mock教程,我创建了以下测试类:

import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.testing.mock.osgi.junit.OsgiContext;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(PowerMockRunner.class)
public class MyFooTest {
    @Rule
    public OsgiContext mockContext = new OsgiContext();

    @Test
    public void test() {
        ResourceResolverFactory mockFactory = Mockito.mock(ResourceResolverFactory.class);

        mockContext.registerService(ResourceResolverFactory.class, mockFactory);
        mockContext.registerInjectActivateService(new MyFoo());
    }

}

测试在最后一行崩溃,但有以下异常:

org.apache.sling.testing.mock.osgi.NoScrMetadataException: No OSGi SCR metadata found for class MyFoo

    at org.apache.sling.testing.mock.osgi.OsgiServiceUtil.injectServices(OsgiServiceUtil.java:381)
    at org.apache.sling.testing.mock.osgi.MockOsgi.injectServices(MockOsgi.java:148)
    at org.apache.sling.testing.mock.osgi.context.OsgiContextImpl.registerInjectActivateService(OsgiContextImpl.java:153)
    at org.apache.sling.testing.mock.osgi.context.OsgiContextImpl.registerInjectActivateService(OsgiContextImpl.java:141)
    at MyFooTest.testGetResolver(MyFooTest.java:22)
//snippet

根据互联网上的建议,我已达到this configuration guide并确保我的pom.xml具有maven-bundle-plugin的完全配置 - 但这并未解决问题。

知道我哪里弄错了吗?

2 个答案:

答案 0 :(得分:4)

我尝试复制你的问题,最初遇到同样的异常并立即开始工作。由于maven-scr-pluginmaven-bundle-plugin之间的传递依赖性,问题可能是由于被破坏的类路径。

确保您具备以下条件:

  • 使用与OSGI R6兼容的osgi-mock 2.x模拟依赖项。这是我用的。

        <dependency>
            <groupId>org.apache.sling</groupId>
            <artifactId>org.apache.sling.testing.osgi-mock</artifactId>
            <version>2.3.6</version>
            <scope>test</scope>
        </dependency>
    
  • 删除scr maven插件和依赖项(maven-scr-pluginorg.apache.felix.scr),因为当与OSGi R6注释结合使用时会导致类路径冲突。这是我使用过的maven-bundle-plugin版本。我从here获取了所有必需的依赖项。

            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <version>3.2.0</version>
            </plugin>
    
  • 确保您的插件构建部分包含生成所需DS元数据所需的配置。您可以参考您已链接的felix文档以获取更多相关信息。

        <plugin>
            <groupId>org.apache.felix</groupId>
            <artifactId>maven-bundle-plugin</artifactId>
            <extensions>true</extensions>
            <executions>
                <execution>
                    <id>scr-metadata</id>
                    <goals>
                        <goal>manifest</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <exportScr>true</exportScr>
                <instructions>
                    <Bundle-SymbolicName>com.aem.chula.chula</Bundle-SymbolicName>
    
                    <Sling-Model-Packages>
                      com.aem.models
                    </Sling-Model-Packages>
    
                    <_dsannotations>*</_dsannotations>
                    <_metatypeannotations>*</_metatypeannotations>
                </instructions>
            </configuration>
        </plugin>
    
  • 执行mvn clean install/OSG-INF生成DS输出。

  • 运行测试。我已使用MockitoJunitRunner,也可以使用PowerMock

enter image description here

答案 1 :(得分:1)

在我的情况下,我必须添加ds-annotations依赖项

<dependency>
    <groupId>org.apache.felix</groupId>
    <artifactId>org.apache.felix.scr.ds-annotations</artifactId>
    <version>1.2.10</version>
    <scope>provided</scope>
</dependency>

http://felix.apache.org/documentation/subprojects/apache-felix-maven-scr-plugin/apache-felix-maven-scr-plugin-use.html

中所述