为什么在测试我的控制器时,我无法投射对象'空'错误? [英] Why I get a cannot cast object 'null' error, when testing my controller?

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问题描述

  def unCompletedTasks(){
def user = User.get( springSecurityService.principal.id)
def choice = params.managersProject
params.max = Math.min(params.max?params.int('max'):10,100)
def search = Tasks.createCriteria()。列表(最大值:params.max为整数,偏移量:params.offset为整数,顺序:params.order为String,排序:params.sort){
和{
项目{'b $ b like('name',$ {choice})
}
eq('completed',false)
lt('endDate',new Date()。 clearTime())
}
}

[tasksInstanceList:search,tasksInstanceTotal:search.getTotalCount()]
}

我想测试这个。我在Spock中写了一个测试规范,如下所示:

  def'user should be displayed unCompletedTasks'(){

setup:设置所需的对象
def tasksController = new TasksController()
tasksController.springSecurityService = [principal:[id:tasksInstance.id]]
tasksController.params.managersProject =testing
//其他编码转到这里

当:
def model = tasksController.unCompletedTasks()

then:
model.tasksInstanceTotal == 1

其中:
//必填字段
}

当我运行时,出现如下错误:

 用户应显示unCompletedTasks(mnm .schedule.TasksSpec)
| org.codehaus.groovy.runtime.typehandling.GroovyCastException:无法使用类'org.codehaus.groovy.runtime.NullObject'将对象'null'强制转换为类java.lang.Integer'
at mnm.schedule.TasksController .unCompletedTasks(TasksController.groovy:39)应显示mnm.schedule.TasksSpec.user中的
unCompletedTasks(TasksSpec.groovy:59)

我不知道我错在哪里。

预先感谢。 问题 - 铸造一个null对象与Spock>用Spock投射一个空对象的问题。解决方案是升级到Grails 2.0.2。


I have a controller like this :

 def unCompletedTasks() { 
      def user = User.get(springSecurityService.principal.id) 
      def choice = params.managersProject 
      params.max = Math.min(params.max ? params.int('max') : 10,100) 
      def search = Tasks.createCriteria().list(max: params.max as Integer, offset: params.offset as Integer, order: params.order as String, sort : params.sort) { 
            and { 
                  project { 
                     like('name',"${choice}") 
                  } 
                  eq('completed',false) 
                  lt('endDate',new Date().clearTime()) 
            } 
      } 

      [tasksInstanceList : search, tasksInstanceTotal: search.getTotalCount() ] 
    } 

I want to test this. I wrote a test specification in Spock like this:

    def 'user should be displayed unCompletedTasks' () { 

            setup: "set the required objects" 
            def tasksController = new TasksController() 
            tasksController.springSecurityService = [principal: [id:tasksInstance.id]] 
            tasksController.params.managersProject = "testing" 
           //other codings goes here 

            when: 
            def model = tasksController.unCompletedTasks() 

            then: 
            model.tasksInstanceTotal == 1 

            where: 
            //required fields 
    } 

When I run, I get a error like this :

 user should be displayed unCompletedTasks(mnm.schedule.TasksSpec) 
|  org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'null' with class 'org.codehaus.groovy.runtime.NullObject' to class 'java.lang.Integer' 
        at mnm.schedule.TasksController.unCompletedTasks(TasksController.groovy:39) 
        at mnm.schedule.TasksSpec.user should be displayed unCompletedTasks(TasksSpec.groovy:59) 

I don't know where I went wrong.

Thanks in advance.

解决方案

Sounds like the same problem as discussed in Problems casting a null object with Spock. The solution is to upgrade to Grails 2.0.2.

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