Spock 测试：调用太少

Question

我正在为一个 Service 类编写 Spock 测试，该类的方法调用 Spring Boot 应用程序中 Dao 类中的另一个方法。但是，我得到：

 Too few invocations for:
 1 * dao.getAddressFromSomewhere("me")   (0 invocations)
 Unmatched invocations (ordered by similarity):
 None

下面是源代码和测试代码，有人可以告诉我我做错了什么吗？看来 dao 模拟根本没有被调用并返回“USA”。我在网上做了一些研究，但找不到我做错了什么。

@Service
public class ServiceClass 
{
    @Autowired
    private DaoClass dao;

    public String getAddress(String name) {         
        return dao.getAddressFromSomewhere(name);
    }
}

@Component
public class DaoClass {
     public String getAddressFromSomewhere(String name) {
     // get address from DB
     ......
     }
}

这是我的 Spock 测试代码：

@ContextConfiguration
@Import(ServiceClass.class)
public class Test extends Specification {

@Autowired
private DaoClass dao;
@Autowired
private ServiceClass service;

@TestConfiguration
static class MockConfig {
    def detachedMockFactory = new DetachedMockFactory()
    @Bean
    DaoClass dao() {
        return detachedMockFactory.Mock(DaoClass)
    }
}

def "Test Success Senario"() {                     
    given: "dao"
          dao.getAddressFromSomewhere("me") >> "USA";

    when: "call service "
       def actualResponse = service.getAddress("me");

    then: "dao should be invoked with given response"
       1 * dao.getAddressFromSomewhere("me")
       actualResponse == "USA"
 }
}

Answer 1

通过在块1 * dao.getAddressFromSomewhere("me")中编写，您只需覆盖块中的then:交互即可。通过不声明返回值，您只需告诉模拟返回即可。您可以使用Spock 文档检查交互顺序：dao.getAddressFromSomewhere("me") >> "USA"given:>>null

...then: 块中声明的交互在任何其他交互之前进行匹配。这允许覆盖在 setup 方法中声明的交互，以及在 then: 块中声明的交互。

您可以通过多种方式重写您的示例：

1. given:在块中声明您的交互

def "Test Success Senario"() {
    given: "dao"
    1 * dao.getAddressFromSomewhere("me") >> "USA"

    when: "call service "
    def actualResponse = service.getAddress("me")

    then: "dao should be invoked with given response"
    actualResponse == "USA"
}

2. 在块中声明您的交互then:：

def "Test Success Senario"() {
    when: "call service "
    def actualResponse = service.getAddress("me")

    then: "dao should be invoked with given response"
    1 * dao.getAddressFromSomewhere("me") >> "USA"
    actualResponse == "USA"
}