在使用Grails 2.5.1的Spock單元測試中，控制器始終為null

Question

我是使用Grails 2.5.1的新手。 我需要運行一些單元和集成測試，但無法使其正常運行。

我的域類是：

class Role {

String roleName

Role(String _roleName) {
    roleName = _roleName
}

static constraints = {
    roleName(blank: false, nullable: false)
}
String toString(){
    "$roleName"
}

}

我的控制器類是：

class RoleController {

static allowedMethods = [save: "POST", update: "PUT", delete: "DELETE"]

def index(Integer max) {
    params.max = Math.min(max ?: 10, 100)
    respond Role.list(params), model:[roleInstanceCount: Role.count()]
}

def show(Role roleInstance) {
    respond roleInstance
}

def create() {
    respond new Role(params)
}

...
}

在測試/單元下，我具有RoleControllerSpec類：

import grails.test.mixin.*
import spock.lang.*

@TestFor(RoleController)
@Mock(Role)
class RoleControllerSpec extends Specification {

def 'index action: 1 role'() {
    setup:
    roleInstance.save()

    expect:
    controller.index() == [roleInstanceList: [roleInstance], roleInstanceTotal: 1]

    where:
    roleInstance = new Role(roleName: "Role1")
}



def "create action"() {
    setup:
    controller.params.roleName = roleName

    when:

    def model = controller.create()

    then:
    model.roleInstance != null
    model.roleInstance.roleName == roleName


    where:
    roleName = "Role1"

}
}

當我使用test-app -unit RoleController運行測試時，出現以下異常：

|Configuring classpath
.
|Environment set to test
....................................
|Running without daemon...
..........................................
|Compiling 1 source files
.
|Running 2 unit tests...

|Running 2 unit tests... 1 of 2
Failure:  |
index action: 1 role(accessmanagement.RoleControllerSpec)
 |
Condition not satisfied:
controller.index() == [roleInstanceList: [roleInstance], roleInstanceTotal: 1]
|          |       |                      |
|          null    false                  Role1
 role(RoleControllerSpec.groovy:17)

|Running 2 unit tests... 2 of 2
Failure:  |
create action(accessmanagement.RoleControllerSpec)
 |
java.lang.NullPointerException: Cannot get property 'roleInstance' on null object
at accessmanagement.RoleControllerSpec.create action(RoleControllerSpec.groovy:34)

|Completed 2 unit tests, 2 failed in 0m 6s
.Tests FAILED 
|
Error |
Forked Grails VM exited with error

在我的測試中，控制器似乎為空。 在第一個測試中controller.index（）為null。 在第二個測試中，def model = controller.create（）未創建對象，然后當我嘗試訪問model.roleInstance時無法獲取該屬性。

任何想法將不勝感激。 謝謝！

Answer 1

由於您使用的是響應而不是簡單地從控制器返回映射，因此您需要檢查model屬性

def 'index action: 1 role'() {
    setup:
    Role roleInstance = new Role(roleName: "Role1").save()

    when:
    controller.index()

    then:
    model == [roleInstanceList: [roleInstance], roleInstanceTotal: 1]
}

我建議您閱讀有關測試控制器的文檔https://grails.github.io/grails-doc/2.5.x/guide/testing.html#unitTestingControllers