grails单元测试中的grailsApplication访问

Question

我正在尝试为使用grailsApplication.config进行某些设置的服务编写单元测试.似乎在我的单元测试中,服务实例无法访问其设置的配置文件(空指针),而当我运行"run-app"时它可以访问该设置.如何在单元测试中配置服务以访问grailsApplication服务.

class MapCloudMediaServerControllerTests {

    def grailsApplication

    @Before
    public void setUp(){
        grailsApplication.config= 
        '''
   video{
   location="C:\\tmp\\"  // or shared filesystem drive for a cluster

    yamdi{
        path="C:\\FFmpeg\\ffmpeg-20121125-git-26c531c-win64-static\\bin\\yamdi"  
         }

    ffmpeg  {
        fileExtension = "flv"  // use flv or mp4
        conversionArgs = "-b 600k -r 24 -ar 22050 -ab 96k"
        path="C:\\FFmpeg\\ffmpeg-20121125-git-26c531c-win64-static\\bin\\ffmpeg"
        makethumb = "-an -ss 00:00:03 -an -r 2 -vframes 1 -y -f mjpeg"
    }

    ffprobe {
        path="C:\\FFmpeg\\ffmpeg-20121125-git-26c531c-win64-static\\bin\\ffprobe" 
        params=""
    }

    flowplayer {
        version = "3.1.2" 
    }

    swfobject {
        version = "" 

    qtfaststart {
        path= "C:\\FFmpeg\\ffmpeg-20121125-git-26c531c-win64-static\\bin\\qtfaststart" 
    } 
}   '''
    }

@Test
    void testMpegtoFlvConvertor() {

        log.info "In test Mpg to Flv Convertor function!"

        def controller=new MapCloudMediaServerController()
        assert controller!=null

        controller.videoService=new VideoService()  
        assert controller.videoService!=null

        log.info "Is the video service null? ${controller.videoService==null}"

        controller.videoService.grailsApplication=grailsApplication

        log.info "Is grailsApplication null? ${controller.videoService.grailsApplication==null}"

        //Very important part for simulating the HTTP request
        controller.metaClass.request = new MockMultipartHttpServletRequest()
        controller.request.contentType="video/mpg"
        controller.request.content= new File("..\\MapCloudMediaServer\\web-app\\videoclips\\sample3.mpg").getBytes()

        controller.mpegtoFlvConvertor()

        byte[] videoOut=IOUtils.toByteArray(controller.response.getOutputStream())
        def outputFile=new File("..\\MapCloudMediaServer\\web-app\\videoclips\\testsample3.flv")
        outputFile.append(videoOut) 
    }
}

Answer 1

如果您使用@TestForGrails(2.0)已经为您模拟grailsApplication,只需设置您的配置,但不要声明grailsApplication.这样做会覆盖模拟的实例.

@TestFor(MyService)
class MyServiceTests {

  @Before
  public void setUp() {
    grailsApplication.config.something = "something"
  }

  @Test
  void testSomething() {
    MyService service = new MyService()
    service.grailsApplication = grailsApplication
    service.doSomething()
  }


}

编辑:

你声明了一个String,要添加到配置,你必须解析它.看这里的例子.

基本上你使用ConfigSlurper().parse()得到a ConfigObject,并用于grails.config.merge()将内容添加到配置中.

Answer 2

使用DefaultGrailsApplication构造 grailsApp是可行的。

class ZazzercodeUnitTestCase extends GrailsUnitTestCase {
    def grailsApplication = new org.codehaus.groovy.grails.commons.DefaultGrailsApplication()
    def chortIndex= grailsApplication.config.zazzercode.chortIndex
}