Contexts for Test::Unit.

Write declarative tests using nested contexts without performance penalties. Contest is less than 100 lines of code and gets the job done.

Declare your tests as you would in RSpec or Shoulda:

require 'contest'
class SomeTest < Test::Unit::TestCase
  setup do
    @value = 1
  end
  teardown do
    @value = nil
  end
  test "sample test" do
    assert_equal 1, @value
  end
  context "a context" do
    setup do
      @value += 1
    end
    test "more tests" do
      assert_equal 2, @value
    end
    context "a nested context" do
      setup do
        @value += 1
      end
      test "yet more tests" do
        assert_equal 3, @value
      end
    end
  end
end

For your convenience, context is aliased as describe and test is aliased as should, so this is valid:

class SomeTest < Test::Unit::TestCase
  setup do
    @value = 1
  end
  describe "something" do
    setup do
      @value += 1
    end
    should "equal 2" do
      assert_equal 2, @value
    end
  end
end

You can run it normally, it's Test::Unit after all. If you want to run a particular test, say "yet more tests", try this:

$ testrb my_test.rb -n test_yet_more_tests

Or with a regular expression:

$ testrb my_test.rb -n /yet_more_tests/

$ sudo gem install contest

If you want to use it with Rails, add this to config/environment.rb:

config.gem "contest"

Then you can vendor the gem:

rake gems:install
rake gems:unpack

Copyright (c) 2009 Damian Janowski and Michel Martens for Citrusbyte

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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