# Common matchers for hexx/exceptions specs

RSpec::Matchers.define :inherit do |ancestor|
  match do |subject|
    expect(subject.ancestors).to be_include ancestor
  end
end

RSpec::Matchers.define :have_error_message do |header|
  match do |subject|
    object = double "object"
    errors = double "errors"
    allow(object).to receive(:errors) { errors }
    begin
      fail subject.new(object)
    rescue => error
      expect(error.message).to eq "#{ header }: #{ errors.inspect }"
    end
  end
end