module RSpec

def self.clear_remaining_example_groups
  world.example_groups.clear
end

def self.configuration
  if block_given?
    RSpec.warn_deprecation <<-WARNING
***************************************************************
PRECATION WARNING
RSpec.configuration with a block is deprecated and has no effect.
please use RSpec.configure with a block instead.
lled from #{caller(0)[1]}
***************************************************************
RNING
  end
  @configuration ||= RSpec::Core::Configuration.new
end

def self.configure
  yield configuration if block_given?
end

def self.const_missing(name)
  case name
    when :Matchers
      # Load rspec-expectations when RSpec::Matchers is referenced. This allows
      # people to define custom matchers (using `RSpec::Matchers.define`) before
      # rspec-core has loaded rspec-expectations (since it delays the loading of
      # it to allow users to configure a different assertion/expectation
      # framework). `autoload` can't be used since it works with ruby's built-in
      # require (e.g. for files that are available relative to a load path dir),
      # but not with rubygems' extended require.
      require 'rspec/expectations'
      ::RSpec::Matchers
    else super
  end
end

def self.reset
  @world = nil
  @configuration = nil
end

def self.wants_to_quit
# Used internally to determine what to do when a SIGINT is received
  world.wants_to_quit
end

def self.wants_to_quit=(maybe)
  world.wants_to_quit=(maybe)
end

def self.windows_os?
  /mswin|mingw/ === ::RbConfig::CONFIG['host_os']
end

def self.world
  @world ||= RSpec::Core::World.new
end

def deprecate(method, alternate_method=nil, version=nil)
  version_string = version ? "rspec-#{version}" : "a future version of RSpec"
  message = <<-NOTICE
*************************************************************
ECATION WARNING: you are using deprecated behaviour that will
emoved from #{version_string}.
ller(0)[2]}
method} is deprecated.
CE
  if alternate_method
    message << <<-ADDITIONAL
ease use #{alternate_method} instead.
TIONAL
  end
  message << "*****************************************************************"
  warn_deprecation(message)
end

def warn_deprecation(message)
  warn message
end