如何验证被测 class 内的交互？

Question

// class under specification
public class TeamService {

  // method under specification
  public void deleteTeam(String id) {
     /* some other calls */
     this.moveAssets(team) // calls method within the class under spec. 
  }

  // I would like to stub / mock this method
  public void moveAssets(Team team){
    // logic
  } 
  
}

Spock 规格

def deleteTeam(){
   given: 
   TeamService teamService = new TeamService()

   when: 'I delete the team'
   teamService.deleteTeam()
   
   then: 'I want to check that moveAssets gets called(team resources going to be preserved 
and that deleteTeam (external class that deletes the team) gets called (has no issues here)'

   1 * teamService.moveAssets(id) >> {} //See Q1
/* 
Q1: I want to test that this call is made 
but currently it does not count as interaction for some reason so I get an error. 
From what I read you can't stub the calls unless the class is mocked -
 
but here I do have an important need to check on the method within the class under specification 
(that is not mocked). What are my options?

I know I can in theory move moveAssets to some other class,
which I can then mock and accomplish it but that does not feel right. 
*/
}

因此在 Spock 的规范中 class，TeamService 是规范中的 class，deleteTeam 是规范中的方法。

问题我收到 moveAssets 方法的错误 0 调用。我希望能够对 moveAssets 方法进行存根/测试，但关于如何实现该方法的信息并不多。我不想将 moveAssets 重新定位到另一个类（这样我就可以模拟它）。任何指导表示赞赏。

必须有一些更好的方法来处理这种情况。

总结：

如何测试从 'Method Under Specification (teamServices.deleteTeam())' 调用的 'Class Under Specification' teamServices.moveAssets()) 方法？

https://github.com/spockframework/spock/discussions/1346

Answer 1

正如您已经注意到的那样，您只能检查模拟对象类型（即模拟、存根或间谍）的交互。后者，spy，是您在这种情况下所需要的，例如：

TeamService teamService =
  Spy(constructorArgs: [mockedInjectedService1, mockedInjectedService2])

这是一个MCVE:

package de.scrum_master.Whosebug.q67950174

class Team {
  String id
}

package de.scrum_master.Whosebug.q67950174

class TeamService {
  def dep1, dep2

  TeamService(dep1, dep2) {
    this.dep1 = dep1
    this.dep2 = dep2
  }

  boolean moveAssets(Team team) {
    println "Moving assets for team $team"
    return false
  }

  void deleteTeam(String id) {
    Team team = findTeamById(id)
    moveAssets(team)
    delete(team)
  }

  Team findTeamById(String id) {
    println "Searching for team $team"
    return new Team(id: id)
  }

  void delete(Team team) {
    println "Deleting team $team"
  }
}

package de.scrum_master.Whosebug.q67950174

import spock.lang.Specification

class TeamServiceTest extends Specification {
  def deleteTeam() {
    given:
    Team teamDocument = new Team(id: "dummy")
    String id = "foo"
    def mockedInjectedService1 = "X"
    def mockedInjectedService2 = "Y"
    TeamService teamService = Spy(constructorArgs: [mockedInjectedService1, mockedInjectedService2])

    when: 'I delete the team'
    teamService.deleteTeam(id)

    then: 'I want to check that moveAssets gets called(team resources going to be preserved'
    1 * teamService.findTeamById(id) >> teamDocument
    1 * teamService.moveAssets(teamDocument) >> true
  }
}

如何验证被测 class 内的交互？

How to verify interactions within the class under test?

java

groovy

unit-testing

mocking

spock