ScalaMock

Native Scala mocking.

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-scalatest-support" % "3.6.0" % Test

Documentation

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

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.

jsw/ScalaMock