如何在Mockito中模拟Scala呼叫者名称 [英] How do you mock scala call-by name in Mockito
问题描述
我正在尝试在Mockito中模拟Scala呼叫者名称方法.但是遇到了这个错误.
Im trying to mock scala call-by name method in mockito. But running into this error.
如果匹配器与原始值组合,则可能发生此异常: //不正确: someMethod(anyObject(),原始字符串");使用匹配器时,所有参数都必须由匹配器提供.例如: //正确的: someMethod(anyObject(),eq(匹配者的字符串"));
This exception may occur if matchers are combined with raw values: //incorrect: someMethod(anyObject(), "raw String"); When using matchers, all arguments have to be provided by matchers. For example: //correct: someMethod(anyObject(), eq("String by matcher"));
任何建议将不胜感激.谢谢!
Any suggestion would be appreciated. Thanks!
这是示例代码和测试文件:在这里,我试图模拟 createCommand 函数.并进行模拟,这样我就可以验证是否调用了 execute .
Here is the sample code and test file: Here Im trying to mock createCommand function. and give a mock so I can verify that execute is called or not.
package com.example
class Command(key: String, func: => Long) {
def execute(): Long = {
println("Command.execute")
println("key = " + key)
println("func = " + func)
func
}
}
class CacheHelper {
def createCommand(cacheKey: String, func: => Long): Command = {
println("cacheKey = " + cacheKey)
println("func = " + func)
new Command(cacheKey, func)
// Mock this method
}
def getOrElse(cacheKey: String)(func: => Long): Long = {
println("circuitBreakerEnabled = " + isCircuitBreakerEnabled)
if (isCircuitBreakerEnabled) {
val createCommand1: Command = createCommand(cacheKey, func)
println("createCommand1 = " + createCommand1)
createCommand1.execute()
}
else {
util.Random.nextInt()
}
}
def isCircuitBreakerEnabled: Boolean = {
println("CacheHelper.isCircuitBreakerEnabled")
false
}
}
import com.example.{CacheHelper, Command}
import org.mockito.Matchers._
import org.mockito.Mockito._
import org.scalatest.{Matchers, _}
import org.scalatest.mock.MockitoSugar
class ExampleSpec extends FlatSpec with Matchers with BeforeAndAfter with MockitoSugar {
"it" should "call commands execute" in {
val cacheHelper: CacheHelper = new CacheHelper
val commandMock: Command = mock[Command]
val spyCacheHelper = spy(cacheHelper)
when(spyCacheHelper.isCircuitBreakerEnabled).thenReturn(true)
when(spyCacheHelper.createCommand(any(), anyLong())).thenReturn(commandMock)
val result: Long = spyCacheHelper.getOrElse("key")(1L)
println("result = " + result)
verify(commandMock).execute()
}
}
推荐答案
Can't do it with Mockito: Verifying by-name parameters in Mockito
应该可以用scalamock做到这一点: 如何模拟呼叫-使用ScalaMock命名参数(例如getOrElse)?
Should be able to do it with scalamock: How to mock a call-by-name argument (like getOrElse) using ScalaMock?
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