ScalaMock

Native Scala mocking.

Official website: http://scalamock.org/

Examples

Expectations-First Style

test("drawline interaction with turtle") {
  // Create mock Turtle object
  val m = mock[Turtle]
  
  // Set expectations
  (m.setPosition _).expects(10.0, 10.0)
  (m.forward _).expects(5.0)
  (m.getPosition _).expects().returning(15.0, 10.0)

  // Exercise System Under Test
  drawLine(m, (10.0, 10.0), (15.0, 10.0))
}

Record-then-Verify (Mockito) Style

test("drawline interaction with turtle") {
  // Create stub Turtle
  val m = stub[Turtle]
  
  // Setup return values
  (m.getPosition _).when().returns(15.0, 10.0)

  // Exercise System Under Test
  drawLine(m, (10.0, 10.0), (15.0, 10.0))

  // Verify expectations met
  (m.setPosition _).verify(10.0, 10.0)
  (m.forward _).verify(5.0)
}

A more complete example is on our Quickstart page.

Features

• Fully typesafe
• Full support for Scala features such as:
  • Polymorphic (type parameterised) methods
  • Operators (methods with symbolic names)
  • Overloaded methods
  • Type constraints
• ScalaTest and Specs2 integration
• Mock and Stub support
• Macro Mocks and Proxy Mocks
• Scala.js support
• built for Scala 2.10, 2.11, 2.12

Using ScalaMock

Artefacts are published to Maven Central and JCenter.

For ScalaTest, to use ScalaMock in your Tests, add the following to your build.sbt:

libraryDependencies += "org.scalamock" %% "scalamock" % "4.1.0" % Test

Documentation

For usage in Maven or Gradle, integration with Specs2, and more example examples see the User Guide

Donations

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Acknowledgements

YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: YourKit Java Profiler and YourKit .NET Profiler.