rake task to convert jsunit tests to jasmine

convert.rake

  task :convert do
    require 'nokogiri'
    
    Dir.glob("public/javascripts/test-pages/**/*_test.html").each do |file|
      doc = Nokogiri::HTML(File.read(file))
      name = File.basename(file, "_test.html")
      script = doc.css("script").find { |tag| tag[:src].blank? }
      
      if body = doc.at("body")
        File.open("spec/javascripts/fixtures/#{name}.html", "w") do |out|
          out << body.children
        end
      end
      
      File.open("spec/javascripts/#{name}_spec.js", "w") do |out|
        filtered = script.children.to_s
        indent = filtered[/( *)function test/, 1]
        
        filtered.gsub! "function setUp() {", "beforeEach(function() {"
        filtered.gsub! "function tearDown() {", "afterEach(function() {"
        filtered.gsub! /function test(.+)\(\) \{/, "it(\"\\1\", function() {"
        filtered.gsub! /^#{indent}\}$/, "#{indent}});"
        
        out << <<END
describe("#{name}", function() {
  beforeEach(function() {
    Fixtures.load("#{name}");
  });
  
  #{filtered}
});
END
      end
    end
  end