from __future__ import nested_scopes # Backward compat for 2.1
from unittest import TestSuite, TestCase, makeSuite
from wsgiref.util import setup_testing_defaults
from wsgiref.headers import Headers
from wsgiref.handlers import BaseHandler, BaseCGIHandler
from wsgiref import util
from wsgiref.validate import validator
from wsgiref.simple_server import WSGIServer, WSGIRequestHandler, demo_app
from wsgiref.simple_server import make_server
from StringIO import StringIO
from SocketServer import BaseServer
import re, sys
class MockServer(WSGIServer):
"""Non-socket HTTP server"""
def __init__(self, server_address, RequestHandlerClass):
BaseServer.__init__(self, server_address, RequestHandlerClass)
self.server_bind()
def server_bind(self):
host, port = self.server_address
self.server_name = host
self.server_port = port
self.setup_environ()
class MockHandler(WSGIRequestHandler):
"""Non-socket HTTP handler"""
def setup(self):
self.connection = self.request
self.rfile, self.wfile = self.connection
def finish(self):
pass
def hello_app(environ,start_response):
start_response("200 OK", [
('Content-Type','text/plain'),
('Date','Mon, 05 Jun 2006 18:49:54 GMT')
])
return ["Hello, world!"]
def run_amock(app=hello_app, data="GET / HTTP/1.0\n\n"):
server = make_server("", 80, app, MockServer, MockHandler)
inp, out, err, olderr = StringIO(data), StringIO(), StringIO(), sys.stderr
sys.stderr = err
try:
server.finish_request((inp,out), ("127.0.0.1",8888))
finally:
sys.stderr = olderr
return out.getvalue(), err.getvalue()
def compare_generic_iter(make_it,match):
"""Utility to compare a generic 2.1/2.2+ iterator with an iterable
If running under Python 2.2+, this tests the iterator using iter()/next(),
as well as __getitem__. 'make_it' must be a function returning a fresh
iterator to be tested (since this may test the iterator twice)."""
it = make_it()
n = 0
for item in match:
if not it[n]==item: raise AssertionError
n+=1
try:
it[n]
except IndexError:
pass
else:
raise AssertionError("Too many items from __getitem__",it)
try:
iter, StopIteration
except NameError:
pass
else:
# Only test iter mode under 2.2+
it = make_it()
if not iter(it) is it: raise AssertionError
for item in match:
if not it.next()==item: raise AssertionError
try:
it.next()
except StopIteration:
pass
else:
raise AssertionError("Too many items from .next()",it)
class IntegrationTests(TestCase):
def check_hello(self, out, has_length=True):
self.assertEqual(out,
"HTTP/1.0 200 OK\r\n"
"Server: WSGIServer/0.1 Python/"+sys.version.split()[0]+"\r\n"
"Content-Type: text/plain\r\n"
"Date: Mon, 05 Jun 2006 18:49:54 GMT\r\n" +
(has_length and "Content-Length: 13\r\n" or "") +
"\r\n"
"Hello, world!"
)
def test_plain_hello(self):
out, err = run_amock()
self.check_hello(out)
def test_validated_hello(self):
out, err = run_amock(validator(hello_app))
# the middleware doesn't support len(), so content-length isn't there
self.check_hello(out, has_length=False)
def test_simple_validation_error(self):
def bad_app(environ,start_response):
start_response("200 OK", ('Content-Type','text/plain'))
return ["Hello, world!"]
out, err = run_amock(validator(bad_app))
self.failUnless(out.endswith(
"A server error occurred. Please contact the administrator."
))
self.assertEqual(
err.splitlines()[-2],
"AssertionError: Headers (('Content-Type', 'text/plain')) must"
" be of type list: <type 'tuple'>"
)
class UtilityTests(TestCase):
def checkShift(self,sn_in,pi_in,part,sn_out,pi_out):
env = {'SCRIPT_NAME':sn_in,'PATH_INFO':pi_in}
util.setup_testing_defaults(env)
self.assertEqual(util.shift_path_info(env),part)
self.assertEqual(env['PATH_INFO'],pi_out)
self.assertEqual(env['SCRIPT_NAME'],sn_out)
return env
def checkDefault(self, key, value, alt=None):
# Check defaulting when empty
env = {}
util.setup_testing_defaults(env)
if isinstance(value,StringIO):
self.failUnless(isinstance(env[key],StringIO))
else:
self.assertEqual(env[key],value)
# Check existing value
env = {key:alt}
util.setup_testing_defaults(env)
self.failUnless(env[key] is alt)
def checkCrossDefault(self,key,value,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(kw[key],value)
def checkAppURI(self,uri,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(util.application_uri(kw),uri)
def checkReqURI(self,uri,query=1,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(util.request_uri(kw,query),uri)
def checkFW(self,text,size,match):
def make_it(text=text,size=size):
return util.FileWrapper(StringIO(text),size)
compare_generic_iter(make_it,match)
it = make_it()
self.failIf(it.filelike.closed)
for item in it:
pass
self.failIf(it.filelike.closed)
it.close()
self.failUnless(it.filelike.closed)
def testSimpleShifts(self):
self.checkShift('','/', '', '/', '')
self.checkShift('','/x', 'x', '/x', '')
self.checkShift('/','', None, '/', '')
self.checkShift('/a','/x/y', 'x', '/a/x', '/y')
self.checkShift('/a','/x/', 'x', '/a/x', '/')
def testNormalizedShifts(self):
self.checkShift('/a/b', '/../y', '..', '/a', '/y')
self.checkShift('', '/../y', '..', '', '/y')
self.checkShift('/a/b', '//y', 'y', '/a/b/y', '')
self.checkShift('/a/b', '//y/', 'y', '/a/b/y', '/')
self.checkShift('/a/b', '/./y', 'y', '/a/b/y', '')
self.checkShift('/a/b', '/./y/', 'y', '/a/b/y', '/')
self.checkShift('/a/b', '///./..//y/.//', '..', '/a', '/y/')
self.checkShift('/a/b', '///', '', '/a/b/', '')
self.checkShift('/a/b', '/.//', '', '/a/b/', '')
self.checkShift('/a/b', '/x//', 'x', '/a/b/x', '/')
self.checkShift('/a/b', '/.', None, '/a/b', '')
def testDefaults(self):
for key, value in [
('SERVER_NAME','127.0.0.1'),
('SERVER_PORT', '80'),
('SERVER_PROTOCOL','HTTP/1.0'),
('HTTP_HOST','127.0.0.1'),
('REQUEST_METHOD','GET'),
('SCRIPT_NAME',''),
('PATH_INFO','/'),
('wsgi.version', (1,0)),
('wsgi.run_once', 0),
('wsgi.multithread', 0),
('wsgi.multiprocess', 0),
('wsgi.input', StringIO("")),
('wsgi.errors', StringIO()),
('wsgi.url_scheme','http'),
]:
self.checkDefault(key,value)
def testCrossDefaults(self):
self.checkCrossDefault('HTTP_HOST',"foo.bar",SERVER_NAME="foo.bar")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="on")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="1")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="yes")
self.checkCrossDefault('wsgi.url_scheme',"http",HTTPS="foo")
self.checkCrossDefault('SERVER_PORT',"80",HTTPS="foo")
self.checkCrossDefault('SERVER_PORT',"443",HTTPS="on")
def testGuessScheme(self):
self.assertEqual(util.guess_scheme({}), "http")
self.assertEqual(util.guess_scheme({'HTTPS':"foo"}), "http")
self.assertEqual(util.guess_scheme({'HTTPS':"on"}), "https")
self.assertEqual(util.guess_scheme({'HTTPS':"yes"}), "https")
self.assertEqual(util.guess_scheme({'HTTPS':"1"}), "https")
def testAppURIs(self):
self.checkAppURI("http://127.0.0.1/")
self.checkAppURI("http://127.0.0.1/spam", SCRIPT_NAME="/spam")
self.checkAppURI("http://spam.example.com:2071/",
HTTP_HOST="spam.example.com:2071", SERVER_PORT="2071")
self.checkAppURI("http://spam.example.com/",
SERVER_NAME="spam.example.com")
self.checkAppURI("http://127.0.0.1/",
HTTP_HOST="127.0.0.1", SERVER_NAME="spam.example.com")
self.checkAppURI("https://127.0.0.1/", HTTPS="on")
self.checkAppURI("http://127.0.0.1:8000/", SERVER_PORT="8000",
HTTP_HOST=None)
def testReqURIs(self):
self.checkReqURI("http://127.0.0.1/")
self.checkReqURI("http://127.0.0.1/spam", SCRIPT_NAME="/spam")
self.checkReqURI("http://127.0.0.1/spammity/spam",
SCRIPT_NAME="/spammity", PATH_INFO="/spam")
self.checkReqURI("http://127.0.0.1/spammity/spam?say=ni",
SCRIPT_NAME="/spammity", PATH_INFO="/spam",QUERY_STRING="say=ni")
self.checkReqURI("http://127.0.0.1/spammity/spam", 0,
SCRIPT_NAME="/spammity", PATH_INFO="/spam",QUERY_STRING="say=ni")
def testFileWrapper(self):
self.checkFW("xyz"*50, 120, ["xyz"*40,"xyz"*10])
def testHopByHop(self):
for hop in (
"Connection Keep-Alive Proxy-Authenticate Proxy-Authorization "
"TE Trailers Transfer-Encoding Upgrade"
).split():
for alt in hop, hop.title(), hop.upper(), hop.lower():
self.failUnless(util.is_hop_by_hop(alt))
# Not comprehensive, just a few random header names
for hop in (
"Accept Cache-Control Date Pragma Trailer Via Warning"
).split():
for alt in hop, hop.title(), hop.upper(), hop.lower():
self.failIf(util.is_hop_by_hop(alt))
class HeaderTests(TestCase):
def testMappingInterface(self):
test = [('x','y')]
self.assertEqual(len(Headers([])),0)
self.assertEqual(len(Headers(test[:])),1)
self.assertEqual(Headers(test[:]).keys(), ['x'])
self.assertEqual(Headers(test[:]).values(), ['y'])
self.assertEqual(Headers(test[:]).items(), test)
self.failIf(Headers(test).items() is test) # must be copy!
h=Headers([])
del h['foo'] # should not raise an error
h['Foo'] = 'bar'
for m in h.has_key, h.__contains__, h.get, h.get_all, h.__getitem__:
self.failUnless(m('foo'))
self.failUnless(m('Foo'))
self.failUnless(m('FOO'))
self.failIf(m('bar'))
self.assertEqual(h['foo'],'bar')
h['foo'] = 'baz'
self.assertEqual(h['FOO'],'baz')
self.assertEqual(h.get_all('foo'),['baz'])
self.assertEqual(h.get("foo","whee"), "baz")
self.assertEqual(h.get("zoo","whee"), "whee")
self.assertEqual(h.setdefault("foo","whee"), "baz")
self.assertEqual(h.setdefault("zoo","whee"), "whee")
self.assertEqual(h["foo"],"baz")
self.assertEqual(h["zoo"],"whee")
def testRequireList(self):
self.assertRaises(TypeError, Headers, "foo")
def testExtras(self):
h = Headers([])
self.assertEqual(str(h),'\r\n')
h.add_header('foo','bar',baz="spam")
self.assertEqual(h['foo'], 'bar; baz="spam"')
self.assertEqual(str(h),'foo: bar; baz="spam"\r\n\r\n')
h.add_header('Foo','bar',cheese=None)
self.assertEqual(h.get_all('foo'),
['bar; baz="spam"', 'bar; cheese'])
self.assertEqual(str(h),
'foo: bar; baz="spam"\r\n'
'Foo: bar; cheese\r\n'
'\r\n'
)
class ErrorHandler(BaseCGIHandler):
"""Simple handler subclass for testing BaseHandler"""
def __init__(self,**kw):
setup_testing_defaults(kw)
BaseCGIHandler.__init__(
self, StringIO(''), StringIO(), StringIO(), kw,
multithread=True, multiprocess=True
)
class TestHandler(ErrorHandler):
"""Simple handler subclass for testing BaseHandler, w/error passthru"""
def handle_error(self):
raise # for testing, we want to see what's happening
class HandlerTests(TestCase):
def checkEnvironAttrs(self, handler):
env = handler.environ
for attr in [
'version','multithread','multiprocess','run_once','file_wrapper'
]:
if attr=='file_wrapper' and handler.wsgi_file_wrapper is None:
continue
self.assertEqual(getattr(handler,'wsgi_'+attr),env['wsgi.'+attr])
def checkOSEnviron(self,handler):
empty = {}; setup_testing_defaults(empty)
env = handler.environ
from os import environ
for k,v in environ.items():
if not empty.has_key(k):
self.assertEqual(env[k],v)
for k,v in empty.items():
self.failUnless(env.has_key(k))
def testEnviron(self):
h = TestHandler(X="Y")
h.setup_environ()
self.checkEnvironAttrs(h)
self.checkOSEnviron(h)
self.assertEqual(h.environ["X"],"Y")
def testCGIEnviron(self):
h = BaseCGIHandler(None,None,None,{})
h.setup_environ()
for key in 'wsgi.url_scheme', 'wsgi.input', 'wsgi.errors':
self.assert_(h.environ.has_key(key))
def testScheme(self):
h=TestHandler(HTTPS="on"); h.setup_environ()
self.assertEqual(h.environ['wsgi.url_scheme'],'https')
h=TestHandler(); h.setup_environ()
self.assertEqual(h.environ['wsgi.url_scheme'],'http')
def testAbstractMethods(self):
h = BaseHandler()
for name in [
'_flush','get_stdin','get_stderr','add_cgi_vars'
]:
self.assertRaises(NotImplementedError, getattr(h,name))
self.assertRaises(NotImplementedError, h._write, "test")
def testContentLength(self):
# Demo one reason iteration is better than write()... ;)
def trivial_app1(e,s):
s('200 OK',[])
return [e['wsgi.url_scheme']]
def trivial_app2(e,s):
s('200 OK',[])(e['wsgi.url_scheme'])
return []
h = TestHandler()
h.run(trivial_app1)
self.assertEqual(h.stdout.getvalue(),
"Status: 200 OK\r\n"
"Content-Length: 4\r\n"
"\r\n"
"http")
h = TestHandler()
h.run(trivial_app2)
self.assertEqual(h.stdout.getvalue(),
"Status: 200 OK\r\n"
"\r\n"
"http")
def testBasicErrorOutput(self):
def non_error_app(e,s):
s('200 OK',[])
return []
def error_app(e,s):
raise AssertionError("This should be caught by handler")
h = ErrorHandler()
h.run(non_error_app)
self.assertEqual(h.stdout.getvalue(),
"Status: 200 OK\r\n"
"Content-Length: 0\r\n"
"\r\n")
self.assertEqual(h.stderr.getvalue(),"")
h = ErrorHandler()
h.run(error_app)
self.assertEqual(h.stdout.getvalue(),
"Status: %s\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: %d\r\n"
"\r\n%s" % (h.error_status,len(h.error_body),h.error_body))
self.failUnless(h.stderr.getvalue().find("AssertionError")<>-1)
def testErrorAfterOutput(self):
MSG = "Some output has been sent"
def error_app(e,s):
s("200 OK",[])(MSG)
raise AssertionError("This should be caught by handler")
h = ErrorHandler()
h.run(error_app)
self.assertEqual(h.stdout.getvalue(),
"Status: 200 OK\r\n"
"\r\n"+MSG)
self.failUnless(h.stderr.getvalue().find("AssertionError")<>-1)
def testHeaderFormats(self):
def non_error_app(e,s):
s('200 OK',[])
return []
stdpat = (
r"HTTP/%s 200 OK\r\n"
r"Date: \w{3}, [ 0123]\d \w{3} \d{4} \d\d:\d\d:\d\d GMT\r\n"
r"%s" r"Content-Length: 0\r\n" r"\r\n"
)
shortpat = (
"Status: 200 OK\r\n" "Content-Length: 0\r\n" "\r\n"
)
for ssw in "FooBar/1.0", None:
sw = ssw and "Server: %s\r\n" % ssw or ""
for version in "1.0", "1.1":
for proto in "HTTP/0.9", "HTTP/1.0", "HTTP/1.1":
h = TestHandler(SERVER_PROTOCOL=proto)
h.origin_server = False
h.http_version = version
h.server_software = ssw
h.run(non_error_app)
self.assertEqual(shortpat,h.stdout.getvalue())
h = TestHandler(SERVER_PROTOCOL=proto)
h.origin_server = True
h.http_version = version
h.server_software = ssw
h.run(non_error_app)
if proto=="HTTP/0.9":
self.assertEqual(h.stdout.getvalue(),"")
else:
self.failUnless(
re.match(stdpat%(version,sw), h.stdout.getvalue()),
(stdpat%(version,sw), h.stdout.getvalue())
)
# This epilogue is needed for compatibility with the Python 2.5 regrtest module
def test_main():
import unittest
from test.test_support import run_suite
run_suite(
unittest.defaultTestLoader.loadTestsFromModule(sys.modules[__name__])
)
if __name__ == "__main__":
test_main()
# the above lines intentionally left blank
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