RSpec

DESCRIPTION:

RSpec is a Behaviour Driven Development framework for writing executable code examples.

FEATURES:

Spec::Example provides a framework for organizing executable code examples
Spec::Expectations adds #should and #should_not to every object
Spec::Matchers provides Expression Matchers for use with #should and #should_not
Spec::Mocks is a full featured mock object/stubbing library

SYNOPSIS:

describe Account do
  context "transfering money" do
    it "deposits transfer amount to the other account" do
      source = Account.new(50, :USD)
      target = mock('target account')
      target.should_receive(:deposit).with(Money.new(5, :USD))
      source.transfer(5, :USD).to(target)
    end

    it "reduces its balance by the transfer amount" do
      source = Account.new(50, :USD)
      target = stub('target account')
      source.transfer(5, :USD).to(target)
      source.balance.should == Money.new(45, :USD)
    end
  end
end

$ spec spec/account_spec.rb --format nested
Account
  transfering money
    deposits transfer amount to the other account
    reduces its balance by the transfer amount

2 examples, 0 failures

INSTALL:

 [sudo] gem install rspec

or

clone, build, install - See http://wiki.github.com/dchelimsky/rspec