unit-testing - Grails单元测试服务-如何冲洗？

Question

我将Grails V2.4.3与HibernateTestMixin一起使用。我对服务有一个简单的单元测试，如下所示:

import spock.lang.*
import grails.test.mixin.TestMixin
import grails.test.mixin.gorm.Domain
import grails.test.mixin.hibernate.HibernateTestMixin
import grails.buildtestdata.mixin.Build

@TestFor(FieldSavingService)
@Domain([Field, SubField])
@TestMixin(HibernateTestMixin)
class FieldSavingServiceSpec extends Specification {

void "Should save Field"() {
    given:
    Field field = new Field(label: "Name").save(flush: true)
    def first = new SubField(caption: "first", sortOrder: 0, field: field).save(flush: true)
    def second = new SubField(caption: "second", sortOrder: 1, field: field).save(flush: true)
    field.addToSubFields(second).addToSubFields(first).save(flush: true, failOnError: true) 

    when:
    service.deleteField()

    then:       
    SubField.findAllByField(field).size() == 0  //test fails
    }
}

该服务如下:

class FieldSavingService {
        void deleteField() {
        Field field = Field.findByLabel("Name")
        def  subFields = SubField.findAllByField(field)
        subFields.each{ it.delete()}
        field.delete() //unit test passes if field.delete(flush: true) is called
    }
}

仅当我在服务中调用带有flush:true的delete时，单元测试才会通过。鉴于Grails中的服务是事务性的(即，当域从服务返回时应刷新域)，如何在不调用生产代码中刷新的情况下通过测试？谢谢 :)

Answer 1

您可以尝试在删除后显式刷新当前 session 。请注意，您可以使用hibernateSession(source code)提供的HibernateTestMixin属性访问当前 session 。

void "Should save Field"() {
    given:
    Field field = new Field(label: "Name").save(flush: true)
    def first = new SubField(caption: "first", sortOrder: 0, field: field).save(flush: true)
    def second = new SubField(caption: "second", sortOrder: 1, field: field).save(flush: true)
    field.addToSubFields(second).addToSubFields(first).save(flush: true, failOnError: true) 

    when:
    service.deleteField()
    hibernateSession.flush() // explicitly flush current session

    then:       
    SubField.findAllByField(field).size() == 0  //test fails
}