# encoding: utf-8
require 'spec_helper'

shared_examples_for 'an RSpec matcher' do |options|

  let(:valid_value) { options.fetch(:valid_value) }
  let(:invalid_value) { options.fetch(:invalid_value) }

  context 'when using #== so it can be composed' do
    it 'matches a valid value' do
      expect(matcher).to eq(valid_value)
    end

    it 'does not match an invalid value' do
      expect(matcher).not_to eq(invalid_value)
    end
  end

end