Grails控制器单元测试不会将页面呈现给response.text [英] Grails Controller Unit Test doesn't render page to response.text

问题描述

我的环境配置：Java 1.7u51，Grails 2.3.7

我试图断言 response.text 在Controller Test中，但它总是带。

发生了什么？

这是我的UserController

  class UserController {
 
 def index（）{
 flash.errors =$ params .secret
 render view：index，model：[model：params.toModel，
 text：params.username] 
} 
} 
  

这是/user/index.gsp文件

  $ {text} 
  

这是我的规格

  @TestFor（UserController）$ b $ class UserControllerSpec extends Specification {
 
 def setup（）{
} 
 
 def cleanup（）{
} 
 
 voidtest something（）{
 
给出：
 params.username = USERNAME
 params.password =SECRET
 params.toModel =Model
 
当：
 controller.index（）
 
 then：
 flash.errors 
 view == / user / index
 params.username == response.text 
 model.model == params.toModel 
} 
} 
  
 
 
 
和测试报告是：
 
 
 失败： | 
测试一些东西（teste.UserControllerSpec）
 | 
条件不满足：
 
 params.username == response.text 
 | | | | | 
 | USERNAME | | 
 | | org.codehaus.groovy.grails.plugins.testing.GrailsMockHttpServletResponse@46f29a61 
 |假
 | 8差异（0％相似度）
 | （USERNAME）
 | （-------）
 [用户名：USERNAME，密码：SECRET，toModel：Model] 
  
 
 
解决方案
只有模板呈现的情况下，模板的内容直接呈现为字符串响应。因此 response.text 只能在渲染模板的时候使用，与这种情况下渲染视图不同。  
 
 
为了测试渲染视图，  GroovyPageUnitTestMixin  必须如下使用： 
 
 
  import grails.test.mixin.TestMixin 
 import spock.lang.Specification 
 import grails.test.mixin.web.GroovyPageUnitTestMixin 
 
 @TestMixin（GroovyPageUnitTestMixin）
 class UserControllerSpec extends Specification {
 def controller 
 $ b def setup（）{
 controller = testFor（UserController）
} 
 
 voidtest something（）{
 given：
 params.username =USERNAME
 params.password =SECRET
 params.toModel =模型
 
当：
 controller.index（）
 
 then：
 flash.errors 
 view ==/ user / index
 model.model == params.toModel 
 
 //提供的方法由mixin模仿
 //控制器中的渲染方法。确保模型也传递到地图arg 
 //因为视图使用了model.text 
 
 render（view：/ user / index，model：model）=='USERNAME' 
 
 
  
 注意： 
 
 
 
 
 
  @TestFor 被测试中的Mixin替换。因此，必须使用 testFor（）方法来模拟控制器，如 setup（）中所示。
 
 
  render（）也可用于测试模板呈现，其中键模板类似于在地图参数中使用关键 view 。
 
 
 
My env configs: Java 1.7u51, Grails 2.3.7

I'm trying to assert response.text in Controller Test but it always brings "".

What's happening?

This is my UserController
class UserController {

    def index() {
        flash.errors = "$params.secret"
        render view: "index", model: [model: params.toModel, 
                text: params.username]
    }
}
This is /user/index.gsp file
${text}
This is my Specification
@TestFor(UserController)
class UserControllerSpec extends Specification {

    def setup() {
    }

    def cleanup() {
    }

    void "test something"() {

        given:
            params.username = "USERNAME"
            params.password = "SECRET"
            params.toModel = "Model"

        when: 
            controller.index()

        then: 
            flash.errors
            view == "/user/index"
            params.username == response.text
            model.model == params.toModel
    }
}
And test report is:
Failure:  |
test something(teste.UserControllerSpec)
 |
Condition not satisfied:

params.username  == response.text
|      |         |  |        |
|      USERNAME  |  |        ""
|                |  org.codehaus.groovy.grails.plugins.testing.GrailsMockHttpServletResponse@46f29a61
|               false
|               8 differences (0% similarity)
|               (USERNAME)
|               (-------)
[username:USERNAME, password:SECRET, toModel:Model]

解决方案
It is only the case of a template rendering where the content of the template is directly rendered to response as String. Hence response.text can only be used when a template is rendered unlike in this case where a view is being rendered.

In order to test rendering a view, GroovyPageUnitTestMixin has to be used as below:
import grails.test.mixin.TestMixin
import spock.lang.Specification
import grails.test.mixin.web.GroovyPageUnitTestMixin

@TestMixin(GroovyPageUnitTestMixin)
class UserControllerSpec extends Specification {
    def controller

    def setup(){
        controller = testFor(UserController)
    }

    void "test something"() {
        given:
            params.username = "USERNAME"
            params.password = "SECRET"
            params.toModel = "Model"

        when:
            controller.index()

        then:
            flash.errors
            view == "/user/index"
            model.model == params.toModel

            //method provided by mixin which mimics render method in 
            //controller. Make sure model is also passed in the map arg
            //since view uses model.text

            render(view: "/user/index", model: model) == 'USERNAME'
    }
}
Note:  


@TestFor is replaced with the Mixin in the test. Therefore, controller has to be mocked as seen in setup() using testFor() method.
render() can also be used to test template rendering with the key template similar to the usage of key view in the map argument.


                        
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