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import sys
import cherrypy
from cherrypy._cpcompat import ntob
from cherrypy.test import helper
class WSGIGraftTests(helper.CPWebCase):
@staticmethod
def setup_server():
def test_app(environ, start_response):
status = '200 OK'
response_headers = [('Content-type', 'text/plain')]
start_response(status, response_headers)
output = ['Hello, world!\n',
'This is a wsgi app running within CherryPy!\n\n']
keys = list(environ.keys())
keys.sort()
for k in keys:
output.append('%s: %s\n' % (k, environ[k]))
return [ntob(x, 'utf-8') for x in output]
def test_empty_string_app(environ, start_response):
status = '200 OK'
response_headers = [('Content-type', 'text/plain')]
start_response(status, response_headers)
return [
b'Hello', b'', b' ', b'', b'world',
]
class WSGIResponse(object):
def __init__(self, appresults):
self.appresults = appresults
self.iter = iter(appresults)
def __iter__(self):
return self
if sys.version_info >= (3, 0):
def __next__(self):
return next(self.iter)
else:
def next(self):
return self.iter.next()
def close(self):
if hasattr(self.appresults, 'close'):
self.appresults.close()
class ReversingMiddleware(object):
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
results = app(environ, start_response)
class Reverser(WSGIResponse):
if sys.version_info >= (3, 0):
def __next__(this):
line = list(next(this.iter))
line.reverse()
return bytes(line)
else:
def next(this):
line = list(this.iter.next())
line.reverse()
return ''.join(line)
return Reverser(results)
class Root:
@cherrypy.expose
def index(self):
return ntob("I'm a regular CherryPy page handler!")
cherrypy.tree.mount(Root())
cherrypy.tree.graft(test_app, '/hosted/app1')
cherrypy.tree.graft(test_empty_string_app, '/hosted/app3')
# Set script_name explicitly to None to signal CP that it should
# be pulled from the WSGI environ each time.
app = cherrypy.Application(Root(), script_name=None)
cherrypy.tree.graft(ReversingMiddleware(app), '/hosted/app2')
wsgi_output = '''Hello, world!
This is a wsgi app running within CherryPy!'''
def test_01_standard_app(self):
self.getPage('/')
self.assertBody("I'm a regular CherryPy page handler!")
def test_04_pure_wsgi(self):
if not cherrypy.server.using_wsgi:
return self.skip('skipped (not using WSGI)... ')
self.getPage('/hosted/app1')
self.assertHeader('Content-Type', 'text/plain')
self.assertInBody(self.wsgi_output)
def test_05_wrapped_cp_app(self):
if not cherrypy.server.using_wsgi:
return self.skip('skipped (not using WSGI)... ')
self.getPage('/hosted/app2/')
body = list("I'm a regular CherryPy page handler!")
body.reverse()
body = ''.join(body)
self.assertInBody(body)
def test_06_empty_string_app(self):
if not cherrypy.server.using_wsgi:
return self.skip('skipped (not using WSGI)... ')
self.getPage('/hosted/app3')
self.assertHeader('Content-Type', 'text/plain')
self.assertInBody('Hello world')
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