Scala 如何验证“发件人”在Mockito中只发送了“两个整数”？

Scala代码：

class Sender {
  def send(objects: Any): Unit = ()
}

class User(sender: Sender) {
  def hello(): Unit = {
    sender.send("hello")
    sender.send(1)
    sender.send(2)
  }
}

我只想测试它是否发送正确的int，而不关心字符串：

"user" should {
  "send 3 objects, but two ints only" in {
    val sender = mock[Sender]
    val user = new User(sender)
    user.hello()
    there was two(sender).send(any[Int]) // !!! failed
    there was one(sender).send(1)
    there was one(sender).send(2)
  }
}

它失败，并显示以下消息：

The mock was not called as expected: 
sender.send(<any>);
Wanted 2 times:
-> at com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp(UserSpec.scala:50)
But was 3 times. Undesired invocation:
-> at com.mytest.UserSpec$User.hello(UserSpec.scala:63)
java.lang.Exception: The mock was not called as expected: 
sender.send(<any>);
Wanted 2 times:
-> at com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp(UserSpec.scala:50)
But was 3 times. Undesired invocation:
-> at com.mytest.UserSpec$User.hello(UserSpec.scala:63)
    at com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10.apply(UserSpec.scala:50)
    at com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10.apply(UserSpec.scala:46)

未按预期调用模拟：
sender.send（）；
通缉2次：
->在com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp（UserSpec.scala:50）
但是是三次。意外调用：
->在com.mytest.UserSpec$User.hello（UserSpec.scala:63）
java.lang.Exception:未按预期调用模拟：
sender.send（）；
通缉2次：
->在com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp（UserSpec.scala:50）
但是是三次。意外调用：
->在com.mytest.UserSpec$User.hello（UserSpec.scala:63）
在com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10.apply（UserSpec.scala:50）
在com.mytest.UserSpec$$anonfun$13$$anonfun$apply$10.apply（UserSpec.scala:46）

---

如何以正确的方式编写它？

您可以使用

haveClass

获得正确的匹配

there was two(sender).send(haveClass[Integer])

---

你能验证一下答案是否正确吗？谢谢@Eric，很抱歉这么晚才发表评论。我测试了它，从SBT命令行中发现它还可以，但在IDEA中失败了。我还向IDEA报告了一个问题：