Production example where factories are useful vs. a global set of fixtures.

contact_spec.rb

describe Contract do

  describe '.overlapping' do

    it 'should match a contract partially overlapping the given contract' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => Date.today + 10)
      given = Contract.new(:start_date => Date.today + 7, :end_date => Date.today + 12)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should match a contract entirely enclosed by the given contract' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => Date.today + 10)
      given = Contract.new(:start_date => Date.today + 2, :end_date => Date.today + 50)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should match a contract entirely enclosing the given contract' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => Date.today + 10)
      given = Contract.new(:start_date => Date.today + 7, :end_date => Date.today + 8)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should match a contract ending on the same date as the given contract starts (since the dates are inclusive)' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => Date.today + 10)
      given = Contract.new(:start_date => Date.today + 10, :end_date => Date.today + 20)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should match a contract starting on the same date as the given contract ends (since the dates are inclusive)' do
      match = Contract.make(:start_date => Date.today + 10, :end_date => Date.today + 20)
      given = Contract.new(:start_date => Date.today + 5, :end_date => Date.today + 10)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should not match a contract occuring entirely before the given contract' do
      no_match = Contract.make(:start_date => Date.today + 2, :end_date => Date.today + 3)
      given = Contract.new(:start_date => Date.today + 5, :end_date => Date.today + 10)
      Contract.overlapping(given).all.should == []
    end

    it 'should not match a contract occuring entirely after the given contract' do
      no_match = Contract.make(:start_date => Date.today + 100, :end_date => Date.today + 105)
      given = Contract.new(:start_date => Date.today + 5, :end_date => Date.today + 10)
      Contract.overlapping(given).all.should == []
    end

    it 'should recognize overlap if the given contract is open-ended' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => Date.today + 10)
      given = Contract.new(:start_date => Date.today + 7, :end_date => nil)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should recognize overlap with other open-ended contracts' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => nil)
      given = Contract.new(:start_date => Date.today + 7, :end_date => Date.today + 10)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should recognize overlap when both the given and another contract is open-ended' do
      match = Contract.make(:start_date => Date.today + 5, :end_date => nil)
      given = Contract.new(:start_date => Date.today + 7, :end_date => nil)
      Contract.overlapping(given).all.should == [match]
    end

    it 'should not match the given contract itself' do
      given = Contract.make
      Contract.overlapping(given).all.should == []
    end

  end

end