将 scalacheck 添加到 specs2+spray-testkit 示例

Question

尝试将 scalacheck 添加到 spray-testkit + specs2 示例中：服务路线如下：

def myRoute = get(
  path("add" / IntNumber / IntNumber) ((a, b) =>
    complete((a+b).toString)
  )
)

及其测试规范：

  "MyService" should {
    "do calculation" in {
      Get("/add/30/58") ~> myRoute ~> check {
        responseAs[String] === "88"
      }
    }
    "do calculation with scalacheck" in {
      check { (a: Int, b: Int) ⇒
        Get(s"/add/$a/$b") ~> myRoute ~> check {
          responseAs[String] === s"${a+b}"
        }
      }
    }
  }

应该很简单，但是我的脑子不允许制定第二个测试用例。我收到类似

的错误

...MyService.Spec.scala:44: not found: value a"
 check { (a:Int, b:Int)
          ^
...MyService.Spec.scala:44: value ? is not a member of (Int, Int)
 check { (a:Int, b:Int) ?
                        ^

这是怎么回事以及如何解决？

Answer 1

替换箭头的 => 而不是 unicode 字符 ⇒。

那么你应该使用 prop 而不是 check 并写成：

"do calculation with scalacheck" in {
  prop { (a: Int, b: Int) =>
    Get(s"/add/$a/$b") ~> myRoute ~> check {
      responseAs[String] === s"${a+b}"
    }
  }
}

将 scalacheck 添加到 specs2+spray-testkit 示例

Adding scalacheck to specs2+spray-testkit example

scalacheck

spray

specs2