define_wrapped_matcher.feature

Feature: define wrapped matcher

In order to reuse existing matchers
As an RSpec user
I want to define matchers that wrap other matchers

Scenario: one additional method
  Given a file named "new_model_spec.rb" with:
    """
    Spec::Matchers.define :have_tag do |tag|
      match do |markup|
        markup =~ /<#{tag}>.*<\/#{tag}>/
      end
    end

    Spec::Matchers.define :have_button do
      match do |markup|
        markup.should have_tag('button')
      end
    end

    describe "some markup" do
      it "has a button" do
        "<button>Label</button>".should have_button
      end
    end
    """
  When I run "spec new_model_spec.rb --format specdoc"
  Then the stdout should include "1 example, 0 failures"