unit-testing - 如何在单元测试中模拟 springSecurityService

Question

我正在对内部创建用户实例的 Grails Controller 方法进行单元测试。用户域类使用 springSecurityService Spring Security 插件在将密码插入数据库之前对其进行编码。

有没有办法 mock springSecurityService从我的单元测试为了摆脱那个错误？

 Failure:  Create new individual member(MemberControllerSpec)
|  java.lang.NullPointerException: Cannot invoke method encodePassword() on null object

请在下面找到我的单元测试。

@TestMixin(HibernateTestMixin)
@TestFor(MemberController)
@Domain([User, IndividualPerson])
class MemberControllerSpec extends Specification {

void "Create new individual member"() {

    given:
    UserDetailsService userDetailsService = Mock(UserDetailsService)
    controller.userDetailsService = userDetailsService

    def command = new IndividualPersonCommand()
    command.username = 'scott@tiger.org'
    command.password = 'What ever'
    command.firstname = 'Scott'
    command.lastname = 'Tiger'
    command.dob = new Date()
    command.email = command.username
    command.phone = '89348'
    command.street = 'A Street'
    command.housenumber = '2'
    command.postcode = '8888'
    command.city = 'A City'

    when:
    request.method = 'POST'
    controller.updateIndividualInstance(command)

    then:
    view == 'createInstance'

    and:
    1 * userDetailsService.loadUserByUsername(command.username) >> null

    and:
    IndividualPerson.count() == 1

    and:
    User.count() == 1

    cleanup:
    IndividualPerson.findAll()*.delete()
    User.findAll()*.delete()
}
}

Answer 1

模拟服务的一种方法是使用 Groovy 的 MetaClass

import grails.test.mixin.Mock
import grails.plugin.springsecurity.SpringSecurityService

...
@Mock(SpringSecurityService)
class MemberControllerSpec extends Specification {

    def setupSpec() {
        SpringSecurityService.metaClass.encodePassword = { password -> password }
    }

    def cleanupSpec() {
        SpringSecurityService.metaClass = null
    }
....

在本例中，调用 SpringSecurityService.encodePassword()将简单地以纯文本形式返回密码。

讨论了使用 Mocks 的方法 here .