不带setter的模拟类的Set字段

Question

我想用spock 测试这个方法

public class MainService {   
private final DLCRDDLPortType dlcrddlPortType;  
public void startProcess(Application app) {          
Holder<String> status = new Holder<>();     
Holder<String> statusText = new Holder<>();          
dlcrddlPortType.startProcess(app.getApplicationId(), status, statusText);     
if (status.value.equals(FAIL_RESPONSE_STATUS)) {         
throw new FailResponseException(String.format("Failed to get response with status %s and description %s", status.value, statusText.value));     

}}

public final class Holder<T> implements Serializable {
public T value; 
public Holder() {
}    
public Holder(T value) {
this.value = value;
}
}

status.value为null，我不能在没有setter的情况下更改它，也不能用构造函数创建它，因为我需要mock。我该怎么修？

错误：无法调用"String.equals(Object("；因为"；状态值"；为空

我的测试：

private DLCRDDLPortType dlcrddlPortType
private MainService mainService
private Holder status
private Holder statusText
void setup() {
status = GroovyMock()
dlcrddlPortType = Mock()
mainService= new MainService(dlcrddlPortType)
}
def "startProcess success"() {

given:
def appId = 171l     
ReflectionTestUtils.setField(status, "value", "SUCCESS")
def app = Application.builder().applicationId(appId).build()

when:
mainService.startProcess(app)
then:        
1 * dlcrddlPortType.startProcess(appId, status, statusText)
}

Answer 1

我试图从您的部分示例中创建一个MCVE。重要的部分是：

1 * dlcrddlPortType.startProcess(appId, _, _) >> { id, status, statusText ->
status.value = "SUCCESS"
}

这样，您就可以使用响应生成器来访问参数，并将值设置为状态持有者。

这是一个稍微调整过的例子：

public class MainService {   
private DLCRDDLPortType dlcrddlPortType;  
public void startProcess(Application app) {          
Holder<String> status = new Holder<>();     
Holder<String> statusText = new Holder<>();          
dlcrddlPortType.startProcess(app.getApplicationId(), status, statusText);     
if (status.value.equals("FAIL_RESPONSE_STATUS")) {         
throw new IllegalStateException(String.format("Failed to get response with status %s and description %s", status.value, statusText.value));     
}
}
}
class Application {
long applicationId
}
interface DLCRDDLPortType {
void startProcess(long applicationId, Holder<String> status, Holder<String> statusText)
}

public final class Holder<T> implements Serializable {
public T value; 
public Holder() {
}    
public Holder(T value) {
this.value = value;
}

public void setValue(T value) {
this.value = value;
}
}
class ASpec extends Specification {
def "startProcess success"() {
given:
DLCRDDLPortType dlcrddlPortType = Mock()
MainService mainService = new MainService(dlcrddlPortType: dlcrddlPortType)
long appId = 171l     
def app = new Application(applicationId: appId)
when:
mainService.startProcess(app)

then:        
1 * dlcrddlPortType.startProcess(appId, _, _) >> { id, status, statusText ->
status.value = "SUCCESS"
}
}
}

在Groovy控制台中试用