The testrunner I used for the YUI compressor port

yuicssmin-testrunner.py

#!/usr/bin/python2.4
import os, re
import logging
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from cssmin import compressor

class test(webapp.RequestHandler):
	def get(self):
		self.response.headers['content-type'] = 'text/html'
		dirList = os.listdir('tests')
		
		for fname in dirList:
			if re.match( r'^.DS', fname ) or not os.path.isfile( 'tests/' +fname + '.min' ):
				continue
			# read the files, minified and regular 
			concatenate = []
			concatenate.extend( open( 'tests/' + fname,'r' ).readlines() )
			
			result = []
			result.extend( open( 'tests/' + fname + '.min','r' ).readlines() )
			
			concatenate = ''.join( concatenate )
			result = ''.join( result )
			
			logging.error('Starting testcase: %s' % fname )
			
			compressed = compressor().cssmin( concatenate, -1 )
			if compressed == result:
				self.response.out.write( "<p style='color:green'>Passed test %s</p>" % fname )
			else:
				self.response.out.write( "<p style='color:red;font-weight:bold'>Failed test %s</p>" % fname )
				self.response.out.write( "<textarea style='border:1px solid red; width:300px; margin-right:5px'>%s</textarea>" % compressed )
				self.response.out.write( "<textarea style='border:1px solid green; width:300px;'>%s</textarea>" % result )

def main():
	interface = webapp.WSGIApplication(
		[
			('/', test)
		], debug=True)
	util.run_wsgi_app(interface)

if __name__ == '__main__':
	main()