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GMock

GMock is a mocking framework for the Groovy language.

GMock is all about simple syntax and readability of your tests so you spend less time learning the framework and more writing code. To use GMock just drop the gmock jar file in your classpath.

Getting Started

First extend the org.gmock.GMockTestCase. Create mock object using the mock() method. You setup expectation simply by calling method on your mock.

The code you are testing should be executed within the play closure.

In a nutshell

  • Method mocking: mockLoader.load("fruit").returns("apple")
  • Exception mocking: mockLoader.load("unknown").raises(new RuntimeException())
  • Stub mocking: mockLoader.load("fruit").returns("apple").stub()
  • Static method mocking: mockMath.static.random().returns(0.5)
  • Property mocking: mockLoader.name.returns("loader")
  • Constructor mocking: def mockFile = mock(File, constructor('/a/path/file.txt'))
  • Partial mocking: mock(controller).params.returns(id: 3)
  • Times expectation: mockLoader.load("fruit").returns("apple").atLeastOnce()
  • Custom matcher: mockLoader.load(match{ it.startsWith("fru") })
  • Strict ordering: ordered { ... }
  • Optional support for Hamcrest matcher: mockLoader.put("test", is(not(lessThan(5))))
  • GMockController if you can't extend GMockTestCase in your test

Visit the website for a full documentation: GMock

 

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Results of your search request can come from various sources: the Groovy website itself, the JIRA issues, the API documentation, as well as a few other interesting Groovy-related blogs.

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