Import wsgiref into the stdlib, as of the external version 0.1-r2181.

1 files changed, 615 insertions, 0 deletions

diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
new file mode 100755
index 0000000..f939764
--- /dev/null
+++ b/Lib/test/test_wsgiref.py
@@ -0,0 +1,615 @@
+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:
+        assert it[n]==item
+        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()
+        assert iter(it) is it
+        for item in match:
+            assert it.next()==item
+        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':
+            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