Fun with RSpec series

Exploring Behaviour-Driven Development with Ruby. Testing what should happen rather than what will happen.

describe 'The solar system' do
	
	before(:each) do
		@solarSystem = SolarSystem.new
	end

	it "should have 8 planets" do
		@solarSystem.planets.count.should == 8
	end

	it "farthest planet should be Neptune" do
		@solarSystem.farthest_planet.should == "Neptune"
	end
end

RSpec is a testing tool for the Ruby programming language that is aligned well to the idea of BDD and story driven development. The idea is to take little steps in the development process by writing tests for every feature we introduce.

Please checkout the README files. Each part implements a feature in RSpec with simple examples.

1. [Part 1] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_1.md) Initial introduction

2. [Part 2] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_2.md) More into helper modules, contexts, matchers, expectations and hooks. Uses the observer and singleton pattern in the classes under test.

3. [Part 3] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_3.md) Have(n) matcher and "be_" matcher

4. [Part 4] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_4.md) Implicit and explicit subject.

5. [Part 5] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_5.md) Mocking objects. Stubs, doubles and message expectations

6. [Part 6] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_6.md) Custom argument matchers

7. [Part 7] (https://github.com/mvemjsun/RSpec_fun/blob/master/README_Part_7.md) Expecting consecutive values to be returned from a method

Running the tests

Install gem for RSpec

gem install rspec

To run the tests do rake test:part1 or rake test:part2 and so on. To run all tests do rake test:all

References

1. [RSpec core] (http://rubydoc.info/gems/rspec-core)
2. [RSpec expectations] (http://rubydoc.info/gems/rspec-expectations)
3. [RSpec mocks] (http://rubydoc.info/gems/rspec-mocks)
4. [RSpec book] (http://pragprog.com/book/achbd/the-rspec-book)