Using gametel / mohawk within the same test suite

multiple_page_navigation_example.rb

require 'page_navigation'

module Gametel
  module Navigation
    include PageNavigation
    def on(cls, &block)
      p "Gametel::PageNavigation - #{cls}"
    end
  end
end

# include Mohawk 2nd, to make it the default one in the suite
module Mohawk
  module Navigation
    include PageNavigation
    def on(cls, &block)
      p "Mohawk::PageNavigation - #{cls}"
    end
  end
end

class Foo; end
class Bar; end

# define routes for both
Mohawk::Navigation.routes = { :default => [[Foo, :to_s], [Bar, :to_s]] }
Gametel::Navigation.routes = { :default => [[Bar, :to_s], [Foo, :to_s]] }

# use Mohawk as the default navigation
extend Mohawk::Navigation

class GametelNavigation
  extend Gametel::Navigation

  class << self
    alias :orig_navigate_to :navigate_to

    # use Gametel::Navigation, but restore Mohawk::Navigation when done
    def navigate_to(*args)
      orig_cls = PageNavigation.cls
      PageNavigation.instance_variable_set(:@cls, Gametel::Navigation)
      result = orig_navigate_to(*args)
      PageNavigation.instance_variable_set(:@cls, orig_cls)
      result
    end
  end
end

navigate_to Bar # Mohawk
GametelNavigation.navigate_to Foo # Gametel
navigate_to Bar # restored to Mohawk again

# Example output:
#
#  "Mohawk::PageNavigation - Foo"
#  "Mohawk::PageNavigation - Bar"
#  "Gametel::PageNavigation - Bar"
#  "Gametel::PageNavigation - Foo"
#  "Mohawk::PageNavigation - Foo"
#  "Mohawk::PageNavigation - Bar"