Specs2和@前/ @之后，类似的方法

Question

鉴于类似的代码：

class RESTAcceptanceTest extends Specification { 

    override def is = anonymous^signinOAuth 

    def anonymous = "Something"  ^givenSomething^
        "must happen" ^mustHappen 
    end 

    def signinOAuth = "Signin"    ^givenSignin^
        "works as expected" ^userExistsInDatabase 
    end 

    // rest of object definitions 

} 

我怎么保证之前，执行代码之后同前/ 后“匿名” 和“signinOAuth” ，即使测试本身失败，“after”方法应该执行 ？

Answer 1

如果您正在使用鉴于/时/然后步骤，你可以使用一个Context控制什么获取之前执行和每个示例后：

import org.specs2._ 
import specification._ 

class MySpec extends Specification { def is = 
    "anonymous"^
    "something"^something^
    "must happen"^mustHappen^endp^ 
    "OAuth"^ 
    "signing"^signing^
    "works ok"^worksOk 

    lazy val something: Given[Int] = (s: String) => { s.pp; 1 } 
    lazy val mustHappen: Then[Int] = (i: Int) => (s: String) => 
    context { s.pp; i must_== 1  } 

    lazy val signing: Given[Int] = (s: String) => { s.pp; 2 } 
    lazy val worksOk: Then[Int] = (i: Int) => (s: String) => 
    context { s.pp; i must_== 2 } 

    lazy val context = new BeforeAfter { 
    def before = "before".pp 
    def after = "after".pp 
    } 
} 

在上面的代码中，使用context对象的apply方法将代码包装为使用before和after执行。另外，如果您向其中一个示例添加错误，您将看到“after”代码始终执行。

PS：pp是一种实用方法，如println在执行期间在终端中显示某些内容。优于println的是它返回它的参数，所以你可以写1.pp must_== 1

Answer 2

看一看文档：http://etorreborre.github.com/specs2/guide/org.specs2.guide.Structure.html#Before/After