Question

我想知道，以下小黄瓜短语是否符合BDD规则：

final class KafkaSpec extends BddSpec {

  feature("Kafka distribution to SAP server via websocket") {

    scenario("Kafka consumer does not receive messages from Kafka server") {
      Given("Kafka server is NOT active")
      When("consumer client get started")
      val ex = SenderActor.run
      Then("print message `Failed to connect to Kafka`")
      ex.failed map { ex =>
        assertThrows[ConnectException](ex)
      }
    }

    scenario("Kafka consumer receives messages from Kafka server") {
      Given("Kafka server is ACTIVE")
      When("consumer client get started")
      Then("print message `Successfully connected to Kafka`")
      succeed
    }

  }
}

我使用正确的时态吗？我可以正确使用Given-When-Then吗？

Answer 1

Givens（上下文）很好；我们通常将连续现在或过去时用于这些情况：

Given the kafka server is active <-- continuous present
Given the kafka server was started <-- past tense

对于Whens（事件），最好使用主动语音。主动语气始于谁。谁启动了服务器？（我也在这里对英语做了一些更正。）

When the consumer client was started <-- passive voice
When our consumer starts their client <-- active voice

对于那么（结果），我真的很喜欢“应该”这个词。它鼓励人们质疑它。它真的应该发生吗？现在？在这个版本中？是否有不应该发生这种情况或应该发生其他事情的环境？应该还是会发生，还是这种情况发生了改变？

Then the consumer interface should print the message, `Successfully connected to Kafka`.

不过，另一件事：最后一步的细节对我来说感觉太过分了。如果消息更改，则必须在任何地方进行更改。相反，我将其保留在代码中（您可以抽象出该步骤），并说类似以下内容：

Then the interface should tell the consumer that the connection was successful.

这通常称为"declarative over imperative"。也可以在此处使用被动语气：

Then the consumer should be told that the connection was successful.

使用“应该”一词还有助于区分一种情况的结果与另一种情况的结果；通常，这些结果与结果重叠在一起，形成了另一种情况的背景：

Given Priscilla has an account
When she enters her username and password correctly
Then she should be on her home page.

Given Priscilla is on her home page...

I wrote more about tenses and language of BDD here，您还可以在the BDD category下找到用于新BDD的大量其他资源。

制定正确的情景短语

1 个答案: