如何测试使用条件查询的Grails服务(使用spock)？

dependencies {
    testImplementation 'org.grails:grails-plugin-testing'
    testImplementation 'org.grails.plugins:spock'
    testImplementation 'org.spockframework:spock-core:2.0-groovy-3.0'
}

class UserService {
    List<User> findUsers(Map<String, Object> queryParams) {
        // 根据查询参数构建查询条件，并返回结果
    }
}

import spock.lang.Specification
import grails.testing.services.ServiceUnitTest

class UserServiceSpec extends Specification implements ServiceUnitTest<UserService> {

    void "should find users by condition"() {
        given: "some query parameters"
        Map<String, Object> queryParams = [name: "John", age: 30]

        and: "a mocked User domain class"
        mockDomain(User) {
            User.findAllByNameAndAge(_, _) >> [new User(name: "John", age: 30)]
        }

        when: "calling the findUsers method with the query parameters"
        List<User> users = service.findUsers(queryParams)

        then: "the expected users are returned"
        users.size() == 1
        users[0].name == "John"
        users[0].age == 30
    }
}

./gradlew test