Question

Play Framework v 2.1 with scala，我正在尝试使用无效调用测试我的ProductController（缺少参数），我想要获得BadRequest响应..

控制器代码返回 Ok （Json.toJson（某些类..））或 BadRequest （Json.toJson（某些类...））如果出错了。

我定义了测试类：

class ProductApplicationTests extends PlaySpecification
with Mockito 
with ProductServiceComponent
{
  lazy val productService = mock[ProductService]
  ... other things 

def app = FakeApplication(
withoutPlugins = Seq("com.typesafe.plugin.RedisPlugin"),
withGlobal = Some(
  new GlobalSettings {
    override def getControllerInstance[A](clazz: Class[A]) = clazz match {
      case c if c.isAssignableFrom(classOf[ProductController]) => new ProductController(ProductApplicationTests.this).asInstanceOf[A]
      case _ => super.getControllerInstance(clazz)
    }
  }
)
)

def mockStuff = {
productService.addProduct(any[AddProductRequest]) returns
    DTOResponse(product.id.get)

productService.updateProduct(any[UpdateProductRequest]) returns
    DTOResponse(product.id.get)

productService.deleteProduct(any[DeleteProductRequest]) returns
    DTOResponse(product.id.get)  
}
step(mockStuff)

"Application" should {
"Get product with no tenant Id" in {running(FakeApplication()) {
 val req = FakeRequest(method = "POST", uri = routes.ProductController.getProducts("en_US", "1", "1").url,
              headers = FakeHeaders(
                Seq("Content-type"->Seq("application/json"))
              ),
              body =  None
            )
    val Some(result) = route(req)

    status(result) must equalTo(400)

问题：
我收到错误：

Cannot write an instance of None.type to HTTP response. Try to define a Writeable[None.type]

我已经关注过这篇文章：Play 2 - Scala FakeRequest withJsonBody而且我不明白我做错了什么.. 当我发送此代码作为测试时，它可以工作..

"Get product with valid parameters" in new WithApplication(app) {
  val result = route(FakeRequest(GET, "/v1.0/products?lang=en_US&t=1&ids=1,2"))
  result must beSome
   status(result.get) must equalTo(OK)
  contentType(result.get) must beSome.which(_ == "application/json")
  contentAsString(result.get) must contain("products")
  contentAsString(result.get) must contain("notFoundIds")
}

感谢您的任何评论/答案..

顺便说一句，我的global.scala看起来像：

override def onBadRequest(request: RequestHeader, error: String) = {
 var errorResponse:ErrorResponse[String] = ErrorResponse(ErrorCode.GeneralError, "Error processing request", 500)
 errorResponse.addMessage(error)
 Future.successful(BadRequest(Json.toJson(errorResponse)))
}

override def onError(request: RequestHeader, ex: Throwable) = 
{
  var errorResponse:ErrorResponse[String] = ErrorResponse(ErrorCode.GeneralError, "Error processing request", 500)
  errorResponse.addMessage(ex.getMessage)
  Future.successful(BadRequest(Json.toJson(errorResponse)))
}

如果我在RestAPI测试客户端运行Get，我得到：

{"code":100,"message":"Error processing request - Missing parameter: t"}

Answer 1

如果你看一下source for FakeRequest，你会注意到你需要将正文设置为AnyContentAsEmpty。在旁注中，第一种测试方法应该是POST吗？你的其他例子似乎是GET。

至于你在RestAPI tet客户端运行Get的第二个问题，错误信息似乎很清楚，你需要提供参数t，就像你在上一个例子中所做的那样val result = route(FakeRequest(GET, "/v1.0/products?lang=en_US&t=1&ids=1,2"))

在scala和play框架2.1中测试REST API Controller

1 个答案: