能否让带装饰器的MapStruct Mapper同时成为@Component并支持单元测试？

现有配置说明 #

单元测试场景配置 #

要对带装饰器的Mapper进行单元测试，需使用以下配置：

@Mapper(componentModel = "default")
@DecoratedWith(CardMapperDecorator.class)
public interface CardMapper {

public abstract class CardMapperDecorator implements CardMapper {

    private CardMapper delegate;

    public CardMapperDecorator(CardMapper delegate) {
        this.delegate = delegate;
    }

Spring组件场景配置 #

要让带装饰器的Mapper成为@Component供Spring容器管理并注入，需使用以下配置（注：MapStruct无法在生成的实现类中创建包含super调用的构造方法，因此需采用Setter注入方式）：

@Mapper(componentModel = "spring")
@DecoratedWith(CardMapperDecorator.class)
public interface CardMapper {

@Component
public abstract class CardMapperDecorator implements CardMapper {

    private CardMapper delegate;

    @Autowired // 也可直接对字段添加@Autowired注解
    public void setDelegate(CardMapper delegate) {
        this.delegate = delegate;
    }

核心需求 #

能否实现同时满足单元测试（无需启动Spring上下文）和作为Spring组件供其他Bean注入的场景？

尝试方案及问题 #

根据M. Deinum的建议，尝试为装饰器类添加额外构造方法，但该方案未生效，运行时触发SonarQube报错：

尝试的配置代码 #

装饰器类：

@Component
@NoArgsConstructor
public abstract class CardMapperDecorator implements CardMapper {
    @Autowired
    private CardMapper delegate; // 用于Spring注入

    public CardMapperDecorator(CardMapper delegate) { // 用于单元测试的默认注入
        this.delegate = delegate;
    }
// 装饰器逻辑

Mapper接口：

@Mapper(componentModel = "default") // 此配置是单元测试不启动Spring上下文的关键
@DecoratedWith(CardMapperDecorator.class)
public interface CardMapper {

// 映射方法定义

报错信息 #

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'by.afinny.credit.mapper.CardMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations:

内容的提问来源于stack exchange，提问作者Sergey Zolotarev