如何在使用 PlaySpecification 编写的控制器测试之前和之后执行一组代码？答案

【问题标题】：How to execute a set of code before and after controller tests written using PlaySpecification?如何在使用 PlaySpecification 编写的控制器测试之前和之后执行一组代码？
【发布时间】：2016-04-15 19:20:36
【问题描述】：

class UserControllerSpec extends PlaySpecification {
      "User Controller" should {
        "successfully register a new user." in {
          implicit val app = FakeApplication()

          running(app) {
            val response = route(FakeRequest(
              Helpers.POST,
              com.qburst.omnia.api.controllers.routes.UserController.signUp().url,
              FakeHeaders(Seq(CONTENT_TYPE -> Seq("application/json"))),
              Json.obj("email" -> "user@test.com",
                "password" -> "testpassword"))).get
            status(response) must equalTo(OK)
            contentType(response) must beSome("application/json")
            charset(response) must beSome("utf-8")
            val responseNode = Json.parse(contentAsString(response))
            (responseNode \ "status").as[Int] must equalTo(1)
          }
        }
      }
}

我想在执行一组此类测试之前创建 Cassandra 键空间，并在执行测试后删除 Cassandra 键空间。如何做到这一点？

【问题讨论】：

标签： scala playframework cassandra

【解决方案1】：

我刚刚注意到 specs2 库已经具有 'BeforeAfterAll' 特性，可以让你做到这一点。试试下面的方法：

import org.specs2.specification.BeforeAfterAll

class UserControllerSpec extends PlaySpecification with BeforeAfterAll{

      override def beforeAll(): Unit = //Initialize Cassandra here

      override def afterAll(): Unit = //Release Cassandra here

      "User Controller" should {
        "successfully register a new user." in {
          implicit val app = FakeApplication()

          running(app) {
            val response = route(FakeRequest(
              Helpers.POST,
              com.qburst.omnia.api.controllers.routes.UserController.signUp().url,
              FakeHeaders(Seq(CONTENT_TYPE -> Seq("application/json"))),
              Json.obj("email" -> "user@test.com",
                "password" -> "testpassword"))).get
            status(response) must equalTo(OK)
            contentType(response) must beSome("application/json")
            charset(response) must beSome("utf-8")
            val responseNode = Json.parse(contentAsString(response))
            (responseNode \ "status").as[Int] must equalTo(1)
          }
        }
      }
}

您可以在最新版本的 specs2 库中找到它。我不确定它是在哪个版本中添加的。

【讨论】：

【解决方案2】：

快速更新：

如果您需要在 playframework 2.6.x 上运行它你可以使用

import org.scalatestplus.play.PlaySpec
import org.scalatest.BeforeAndAfterAll
class UserControllerSpec extends PlaySpec with BeforeAndAfterAll{

override def beforeAll(): Unit = //code to run before all tests starts
override def afterAll(): Unit = //code to run after all tests finishes

"User Controller" should {
        "successfully register a new user." in {
         //blabla
        }
 }

}

我希望这对某人有所帮助；）

【讨论】：