Groovy Spock-模拟外部服务
我是spock框架测试的新手,没有找到任何可以找到所需信息的示例。因此,我认为最好的方式是展示一个我需要的例子Groovy Spock-模拟外部服务,groovy,mocking,spock,grails-services,grails-test,Groovy,Mocking,Spock,Grails Services,Grails Test,我是spock框架测试的新手,没有找到任何可以找到所需信息的示例。因此,我认为最好的方式是展示一个我需要的例子 e、 g.斯波克的测试等级: def "getData" (){ // this is test of getData method from ExternalService when: Result result = externalService.getData() then: result.msg = 'SUCCESS' } 服务类别: public
def "getData" (){ // this is test of getData method from ExternalService
when:
Result result = externalService.getData()
then:
result.msg = 'SUCCESS'
}
public class ExternalService(){
private ServiceConnector serviceConnector;
public Result getData(){
Result result = serviceConnector.callAndGet();
prepareInformation(data);
updateStatuses(data);
return result;
}
}
public class Data {
private String msg
private int Id
// +getters/setters
}
getData
测试,并且想模拟唯一的方法callAndGet()
。这意味着每次调用callAndGet
时,我都需要使用msg SUCCESS获得对象数据,但是getData
方法中的所有其他方法都应该正常调用
这完全可以理解吗?问题是我们如何将服务类
ExternalService
注入/模拟到spock测试类中?您需要做的是模拟ServiceConnector
类并通过构造函数传递它(例如)。见下文:
@Grab('org.spockframework:spock-core:1.0-groovy-2.4')
@Grab('cglib:cglib-nodep:3.1')
import spock.lang.*
class Test extends Specification {
def 'some spec'() {
given:
def serviceConnector = Mock(ServiceConnector) {
callAndGet() >> new Result(msg: 'SUCCESS')
}
def externalService = new ExternalService(serviceConnector)
when:
Result result = externalService.getData()
then:
result.msg == 'SUCCESS'
}
}
public class ExternalService {
private ServiceConnector serviceConnector
public ExternalService(ServiceConnector serviceConnector) {
this.serviceConnector = serviceConnector
}
public Result getData() {
Result result = serviceConnector.callAndGet()
prepareInformation(result)
updateStatuses(result)
result
}
private void prepareInformation(Result data) {
}
private void updateStatuses(Result data) {
}
}
public class ServiceConnector {
public Result callAndGet() {
}
}
public class Result {
String msg
}
你不应该试图嘲笑你的服务“只有一种方法”。这只是一个糟糕设计的标志,你的代码是不可测试的。您应该更好地用小型服务隔离类的依赖关系,并在单元测试中模拟这些服务。然后用集成测试和依赖项的完整实现测试上层
在您的示例中,ServiceConnector
应该是一个接口,可以很容易地进行模拟。在这种情况下,测试可以写成:
def "test a mocked service connector"() {
given: "a service connector"
def serviceConnector = Mock(ServiceConnector)
and: "an external service"
def externalService = new ExternalService(serviceConnector:serviceConnector)
when: "Data is loaded"
def result = externalService.data
then: "ServiceConnector is called"
serviceConnector.callAndGet() >> new Result(msg:"SUCCESS")
and: "Data is mocked"
result.msg == "SUCCESS"
}
但是,如果ServiceConnector是一个类,并且您不能更改它,那么您可以在Spock中使用部分模拟。这种测试很难维持,并且会产生很多副作用:
def "test a mocked service connector"() {
given: "a service connector"
def serviceConnector = Spy(ServiceConnector) {
callAndGet() >> new Result(msg:"SUCCESS")
}
and: "an external service"
def externalService = new ExternalService(serviceConnector:serviceConnector)
when: "Data is loaded"
def result = externalService.data
then: "Data is mocked"
result.msg == "SUCCESS"
}