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# -*- coding: utf-8 -*-
"""
werkzeug.testsuite.wsgi
~~~~~~~~~~~~~~~~~~~~~~~
Tests the WSGI utilities.
:copyright: (c) 2011 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
"""
from __future__ import with_statement
import unittest
from os import path
from cStringIO import StringIO
from werkzeug.testsuite import WerkzeugTestCase
from werkzeug.wrappers import BaseResponse
from werkzeug.exceptions import BadRequest, ClientDisconnected
from werkzeug.test import Client, create_environ, run_wsgi_app
from werkzeug import wsgi
class WSGIUtilsTestCase(WerkzeugTestCase):
def test_shareddatamiddleware_get_file_loader(self):
app = wsgi.SharedDataMiddleware(None, {})
assert callable(app.get_file_loader('foo'))
def test_shared_data_middleware(self):
def null_application(environ, start_response):
start_response('404 NOT FOUND', [('Content-Type', 'text/plain')])
yield 'NOT FOUND'
app = wsgi.SharedDataMiddleware(null_application, {
'/': path.join(path.dirname(__file__), 'res'),
'/sources': path.join(path.dirname(__file__), 'res'),
'/pkg': ('werkzeug.debug', 'shared')
})
for p in '/test.txt', '/sources/test.txt':
app_iter, status, headers = run_wsgi_app(app, create_environ(p))
assert status == '200 OK'
assert ''.join(app_iter).strip() == 'FOUND'
app_iter, status, headers = run_wsgi_app(app, create_environ('/pkg/debugger.js'))
contents = ''.join(app_iter)
assert '$(function() {' in contents
app_iter, status, headers = run_wsgi_app(app, create_environ('/missing'))
assert status == '404 NOT FOUND'
assert ''.join(app_iter).strip() == 'NOT FOUND'
def test_get_host(self):
env = {'HTTP_X_FORWARDED_HOST': 'example.org',
'SERVER_NAME': 'bullshit', 'HOST_NAME': 'ignore me dammit'}
assert wsgi.get_host(env) == 'example.org'
assert wsgi.get_host(create_environ('/', 'http://example.org')) \
== 'example.org'
def test_responder(self):
def foo(environ, start_response):
return BaseResponse('Test')
client = Client(wsgi.responder(foo), BaseResponse)
response = client.get('/')
assert response.status_code == 200
assert response.data == 'Test'
def test_pop_path_info(self):
original_env = {'SCRIPT_NAME': '/foo', 'PATH_INFO': '/a/b///c'}
# regular path info popping
def assert_tuple(script_name, path_info):
assert env.get('SCRIPT_NAME') == script_name
assert env.get('PATH_INFO') == path_info
env = original_env.copy()
pop = lambda: wsgi.pop_path_info(env)
assert_tuple('/foo', '/a/b///c')
assert pop() == 'a'
assert_tuple('/foo/a', '/b///c')
assert pop() == 'b'
assert_tuple('/foo/a/b', '///c')
assert pop() == 'c'
assert_tuple('/foo/a/b///c', '')
assert pop() is None
def test_peek_path_info(self):
env = {'SCRIPT_NAME': '/foo', 'PATH_INFO': '/aaa/b///c'}
assert wsgi.peek_path_info(env) == 'aaa'
assert wsgi.peek_path_info(env) == 'aaa'
def test_limited_stream(self):
class RaisingLimitedStream(wsgi.LimitedStream):
def on_exhausted(self):
raise BadRequest('input stream exhausted')
io = StringIO('123456')
stream = RaisingLimitedStream(io, 3)
assert stream.read() == '123'
self.assert_raises(BadRequest, stream.read)
io = StringIO('123456')
stream = RaisingLimitedStream(io, 3)
assert stream.read(1) == '1'
assert stream.read(1) == '2'
assert stream.read(1) == '3'
self.assert_raises(BadRequest, stream.read)
io = StringIO('123456\nabcdefg')
stream = wsgi.LimitedStream(io, 9)
assert stream.readline() == '123456\n'
assert stream.readline() == 'ab'
io = StringIO('123456\nabcdefg')
stream = wsgi.LimitedStream(io, 9)
assert stream.readlines() == ['123456\n', 'ab']
io = StringIO('123456\nabcdefg')
stream = wsgi.LimitedStream(io, 9)
assert stream.readlines(2) == ['12']
assert stream.readlines(2) == ['34']
assert stream.readlines() == ['56\n', 'ab']
io = StringIO('123456\nabcdefg')
stream = wsgi.LimitedStream(io, 9)
assert stream.readline(100) == '123456\n'
io = StringIO('123456\nabcdefg')
stream = wsgi.LimitedStream(io, 9)
assert stream.readlines(100) == ['123456\n', 'ab']
io = StringIO('123456')
stream = wsgi.LimitedStream(io, 3)
assert stream.read(1) == '1'
assert stream.read(1) == '2'
assert stream.read() == '3'
assert stream.read() == ''
io = StringIO('123456')
stream = wsgi.LimitedStream(io, 3)
assert stream.read(-1) == '123'
def test_limited_stream_disconnection(self):
io = StringIO('A bit of content')
# disconnect detection on out of bytes
stream = wsgi.LimitedStream(io, 255)
with self.assert_raises(ClientDisconnected):
stream.read()
# disconnect detection because file close
io = StringIO('x' * 255)
io.close()
stream = wsgi.LimitedStream(io, 255)
with self.assert_raises(ClientDisconnected):
stream.read()
def test_path_info_extraction(self):
x = wsgi.extract_path_info('http://example.com/app', '/app/hello')
assert x == u'/hello'
x = wsgi.extract_path_info('http://example.com/app',
'https://example.com/app/hello')
assert x == u'/hello'
x = wsgi.extract_path_info('http://example.com/app/',
'https://example.com/app/hello')
assert x == u'/hello'
x = wsgi.extract_path_info('http://example.com/app/',
'https://example.com/app')
assert x == u'/'
x = wsgi.extract_path_info(u'http://☃.net/', u'/fööbär')
assert x == u'/fööbär'
x = wsgi.extract_path_info(u'http://☃.net/x', u'http://☃.net/x/fööbär')
assert x == u'/fööbär'
env = create_environ(u'/fööbär', u'http://☃.net/x/')
x = wsgi.extract_path_info(env, u'http://☃.net/x/fööbär')
assert x == u'/fööbär'
x = wsgi.extract_path_info('http://example.com/app/',
'https://example.com/a/hello')
assert x is None
x = wsgi.extract_path_info('http://example.com/app/',
'https://example.com/app/hello',
collapse_http_schemes=False)
assert x is None
def test_get_host_fallback(self):
assert wsgi.get_host({
'SERVER_NAME': 'foobar.example.com',
'wsgi.url_scheme': 'http',
'SERVER_PORT': '80'
}) == 'foobar.example.com'
assert wsgi.get_host({
'SERVER_NAME': 'foobar.example.com',
'wsgi.url_scheme': 'http',
'SERVER_PORT': '81'
}) == 'foobar.example.com:81'
def test_multi_part_line_breaks(self):
data = 'abcdef\r\nghijkl\r\nmnopqrstuvwxyz\r\nABCDEFGHIJK'
test_stream = StringIO(data)
lines = list(wsgi.make_line_iter(test_stream, limit=len(data), buffer_size=16))
assert lines == ['abcdef\r\n', 'ghijkl\r\n', 'mnopqrstuvwxyz\r\n', 'ABCDEFGHIJK']
data = 'abc\r\nThis line is broken by the buffer length.\r\nFoo bar baz'
test_stream = StringIO(data)
lines = list(wsgi.make_line_iter(test_stream, limit=len(data), buffer_size=24))
assert lines == ['abc\r\n', 'This line is broken by the buffer length.\r\n', 'Foo bar baz']
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(WSGIUtilsTestCase))
return suite
|
