mock-maker-inline导致具有final方法特征的测试用例失败

Question

我们需要使用模拟制作者内联来模拟某些第三方库（例如 Azure SDK）的最终类。

我们使用以下版本的 scalatest 和 mockito：

scalaVersion := "2.12.2"

val ScalaTestVersion              = "3.2.5"
val ScalaCheckVersion             = "1.14.2"
val MockitoVersion                = "3.4.0"
val DockerItVersion               = "0.9.9"
val MockJavaMailVersion           = "1.9"
val MockitoScalaVersion           = "1.1.4"
val ScalaPlusScalaCheckVersion    = "3.2.2.0"
val ScalaPlusMockitoVersion       = "3.2.10.0"


lazy val MockitoIssueSample = (project in file("."))
  .settings(
    name := "MockitoIssueSample",
    libraryDependencies += "org.scalatest" %% "scalatest" % ScalaTestVersion % Test,
    libraryDependencies += "org.scalacheck"                %% "scalacheck"               % ScalaCheckVersion % Test,
    libraryDependencies += "org.mockito"                   %  "mockito-core"             % MockitoVersion  % Test,
    libraryDependencies += "org.mockito"                   %% "mockito-scala"            % MockitoScalaVersion  % Test,
    libraryDependencies += "org.scalatestplus"             %% "scalacheck-1-14"          % ScalaPlusScalaCheckVersion  % Test,
    libraryDependencies += "org.scalatestplus"             %% "mockito-3-4"              % ScalaPlusMockitoVersion  % Test,
  )

在我们的Scala应用程序中启用mock-maker-inline后，其他使用trait具有最终方法的测试用例开始失败并出现以下错误：

[info] - should should invoke area of the appropriate shape *** FAILED ***
[info]   org.mockito.exceptions.misusing.UnnecessaryStubbingException: Unnecessary stubbings detected.
[info] Clean & maintainable test code requires zero unnecessary code.
[info] Following stubbings are unnecessary (click to navigate to relevant line of code):
[info]   1. -> at cortex.mockito.sample.AreaCalculatorSpec$$anon$1.<init>(AreaCalculatorSpec.scala:27)
[info] Please remove unnecessary stubbings or use 'lenient' strictness. More info: javadoc for UnnecessaryStubbingException class.
[info]   at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[info]   at scala.Option.fold(Option.scala:158)
[info]   at cortex.mockito.sample.AreaCalculatorSpec.withFixture(AreaCalculatorSpec.scala:13)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.invokeWithFixture$1(AnyWordSpecLike.scala:1075)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.$anonfun$runTest$1(AnyWordSpecLike.scala:1087)
[info]   at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTest(AnyWordSpecLike.scala:1087)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTest$(AnyWordSpecLike.scala:1069)
[info]   at org.scalatest.wordspec.AnyWordSpec.runTest(AnyWordSpec.scala:1879)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.$anonfun$runTests$1(AnyWordSpecLike.scala:1146)
[info]   ...

我们用测试Scala应用程序模拟了这个问题。如果我们禁用mock-maker-inline，那么这个测试用例可以工作。这里，在这个示例应用程序中，我们只添加了一个有问题的测试用例。

下面是示例代码：

>

Shape.scala

包mockito.sample

特征形状{

final def printArea（）：Unit={println（s“Area is:$getArea（）”）}

def getArea（）：双精度

}

矩形. scala

包mockito.sample

类矩形（l:Long，b:Long）扩展形状{

override def getArea（）： Double = { l * b }

}

AreaCalculator.scala

包mockito.sample

类 面积计算器（形状： 形状） {

def print area():Boolean = { shape . print area()true }

}

AreaCalculatorSpec.scala

包mockito.sample

导入org.mockito.integrations.scalatest.IdiomaticMockitoFixture

import org.scalatest.concurrent.ScalaFutures

import org.scalatest.matchers.must.Matchers.convertToAnyMustWrapper

导入org.scalatest.matchers.should.matcheers

导入org . Scala test . wordspec . anywordspec

org.scalatest.导入

导入org.scalatestplus.scalacheck.scalaccheckPropertyChecks

类AreaCalculatorSpec使用带有ScalaFutures的匹配器扩展AnyWordSpec，带有TryValues的匹配器带有ScalaCheckPropertyChecks {

trait Setup { val rectangle = mock[Rectangle] val areaCalculator = new AreaCalculator（rectangle） }

" AreaCalculator#printArea "应该{ "应该调用适当形状的区域"在新设置中{ rectangle.getArea()应该返回40.0 areaCalculator.printArea()必须为true } }

}

请检查并提出您的宝贵意见。如果需要任何其他细节，请告诉我。

谢谢你，

Rakesh Dhandhukiya

Answer 1

能否将＜code＞mockito？

似乎＜code＞IlimaticMockitoFixture。

但是，在内联添加＜code＞mock maker时，我确实收到了此警告。＜code＞：

OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended

这似乎是一个无害的警告。即使我禁用了我的仪器仪表代理，我仍然得到它。

如果我删除< code>mock-maker-inline，警告消失。

这是代码，有点修改：

trait Shape {
  final def printArea(): Unit = println(s"Area is: $getArea")
  def getArea: Double
}

class Rectangle(l: Long, b: Long) extends Shape {
  override def getArea: Double = l * b
}

class AreaCalculator(shape: Shape) {
  def printArea(): Boolean = {
    shape.printArea()
    true
  }
}

< code > arecalculatorspec 更新了新的依赖关系:

import org.mockito.IdiomaticMockito
import org.scalatest.concurrent.ScalaFutures
import org.scalatest.matchers.must.Matchers.convertToAnyMustWrapper
import org.scalatest.matchers.should.Matchers
import org.scalatest.wordspec.AnyWordSpec
import org.scalatest.{EitherValues, TryValues}
import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks

class AreaCalculatorSpec
    extends AnyWordSpec
    with Matchers
    with ScalaFutures
    with EitherValues
    with TryValues
    with IdiomaticMockito
    with ScalaCheckPropertyChecks {

  trait Setup {
    val rectangle: Rectangle = mock[Rectangle]
    val areaCalculator = new AreaCalculator(rectangle)
  }

  "AreaCalculator#printArea" should {
    "should invoke area of the appropriate shape" in new Setup {
      rectangle.getArea shouldReturn 40.0
      areaCalculator.printArea() mustBe true
    }
  }
}

我的模拟制造商内联设置：

我的build.sbt代码：

libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.12" % Test
libraryDependencies += "org.scalamock" %% "scalamock" % "5.2.0" % Test
libraryDependencies += "org.scalatestplus" %% "scalacheck-1-16" % "3.2.12.0" % Test
libraryDependencies += "org.scalatestplus" %% "mockito-4-5" % "3.2.12.0" % Test
libraryDependencies += "org.mockito" % "mockito-core" % "4.6.1" % Test
libraryDependencies += "org.mockito" %% "mockito-scala" % "1.17.7" % Test