#!/usr/bin/env ruby

BEGIN {

	require 'pathname'

	basedir = Pathname.new( __FILE__ ).dirname.parent

	libdir = basedir + "lib"

	$LOAD_PATH.unshift( libdir ) unless $LOAD_PATH.include?( libdir )

}

require 'chunker'

require 'rubygems'

require 'spec'

ENDSTUFF = <<ENDSTUFF

Stuff within the end block.

Content of the END block

Content of the END block

Content of the END block

Content of the END block

ENDSTUFF

HURGADURGA = <<HURGADURGA

Content of the HURGADURGA block

Content of the HURGADURGA block

Content of the HURGADURGA block

Content of the HURGADURGA block

HURGADURGA

HURRRRG = <<HURRRRG

	123123123 123123123 123123123

	123123123 123123123 123123123

	123123123 123123123 123123123

HURRRRG

POOP = <<POOP

Content of the POOP block

POOP

FILE_TEXT = <<EO_FILE_TEXT

This is stuff we shouldn't see or care about.

You know, stuff like code, presumably.

__END__

#{ENDSTUFF}

EO_FILE_TEXT

FILE_TEXT_MULTIPLE = <<EO_FILE_TEXT

This is stuff we shouldn't see or care about.

You know, stuff like code, presumably.

__END__

#{ENDSTUFF}

__POOP__

#{POOP}

__HURRRRG__

#{HURRRRG}

__HURGADURGA__

#{HURGADURGA}

EO_FILE_TEXT

describe Chunker::DataParser do

	it "doesn't include content above the __END__ marker" do

		klass = Class.new

		dp = Chunker::DataParser.new( klass, StringIO.new( FILE_TEXT_MULTIPLE ))

		dp.instance_variable_get( :@scanner ).string.

			should_not =~ /This is stuff we shouldn't see/

	end

	it "doesn't contain the __END__ marker itself" do

		klass = Class.new

		dp = Chunker::DataParser.new( klass, StringIO.new( FILE_TEXT ))

		dp.instance_variable_get( :@scanner ).string.should_not =~ /^__END__/

	end

end

describe 'A class that includes Chunker' do

	it "has all content in DATA_END if there are no sub blocks" do

		File.stub!( :open ).and_return( StringIO.new( FILE_TEXT ))

		klass = Class.new { include Chunker }

		klass.constants.should_not include( 'DATA_POOP' )

		klass.constants.should_not include( 'DATA_HURRRRG' )

		klass.constants.should_not include( 'DATA_HURGADURGA' )

		klass.constants.should include( 'DATA_END' )

	end

	it "separates data sub blocks into individual constants" do

		File.stub!( :open ).and_return( StringIO.new( FILE_TEXT_MULTIPLE ))

		klass = Class.new { include Chunker }

		klass.constants.should include( 'DATA_END' )

		klass.constants.should include( 'DATA_POOP' )

		klass.constants.should include( 'DATA_HURRRRG' )

		klass.constants.should include( 'DATA_HURGADURGA' )

	end

	it "has IO constants that contain the data block contents" do

		File.stub!( :open ).and_return( StringIO.new( FILE_TEXT_MULTIPLE ))

		klass = Class.new { include Chunker }

		klass.const_get( :DATA_END ).read.chomp.should        == ENDSTUFF

		klass.const_get( :DATA_POOP ).read.chomp.should       == POOP

		klass.const_get( :DATA_HURRRRG ).read.chomp.should    == HURRRRG

		klass.const_get( :DATA_HURGADURGA ).read.chomp.should == HURGADURGA

	end

end