[Checkins] SVN: zope.testbrowser/tags/3.10.3/ reverting revisions which went accidently to the tag instead of the trunk

Michael Howitz mh at gocept.com
Mon Jan 24 10:03:58 EST 2011


Log message for revision 119886:
  reverting revisions which went accidently to the tag instead of the trunk
  

Changed:
  U   zope.testbrowser/tags/3.10.3/CHANGES.txt
  U   zope.testbrowser/tags/3.10.3/buildout.cfg
  U   zope.testbrowser/tags/3.10.3/setup.py
  U   zope.testbrowser/tags/3.10.3/src/zope/testbrowser/README.txt
  D   zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests/
  A   zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests.py
  D   zope.testbrowser/tags/3.10.3/src/zope/testbrowser/wsgi.py

-=-
Modified: zope.testbrowser/tags/3.10.3/CHANGES.txt
===================================================================
--- zope.testbrowser/tags/3.10.3/CHANGES.txt	2011-01-24 14:58:37 UTC (rev 119885)
+++ zope.testbrowser/tags/3.10.3/CHANGES.txt	2011-01-24 15:03:58 UTC (rev 119886)
@@ -2,28 +2,16 @@
 CHANGES
 =======
 
-3.11.0-1 (2011-01-24)
----------------------
-
-- Nothing changed yet.
-
-
-3.11.0 (2011-01-24)
--------------------
-
-- Added `wsgi_intercept` support (came from ``zope.app.wsgi.testlayer``).
-
-
 3.10.3 (2010-10-15)
 -------------------
 
-- Fixed backwards compatibility with ``zope.app.wsgi.testlayer``.
+- Fixed backwards compatibility with zope.app.wsgi.testlayer.
 
 
 3.10.2 (2010-10-15)
 -------------------
 
-- Fixed Python 2.7 compatibility in Browser.handleErrors.
+- Fixed Python2.7 compatibility in Browser.handleErrors.
 
 
 3.10.1 (2010-09-21)

Modified: zope.testbrowser/tags/3.10.3/buildout.cfg
===================================================================
--- zope.testbrowser/tags/3.10.3/buildout.cfg	2011-01-24 14:58:37 UTC (rev 119885)
+++ zope.testbrowser/tags/3.10.3/buildout.cfg	2011-01-24 15:03:58 UTC (rev 119886)
@@ -1,19 +1,13 @@
 [buildout]
 develop = .
-parts = test interpreter console-scripts
+parts = test interpreter
 
 [test]
 recipe = zc.recipe.testrunner
 defaults = ['--tests-pattern', '^f?tests$']
-eggs = zope.testbrowser [test, wsgi]
+eggs = zope.testbrowser [test]
 
 [interpreter]
 recipe = zc.recipe.egg
 eggs = zope.testbrowser
 interpreter = py
-
-[console-scripts]
-recipe = zc.recipe.egg
-eggs =
-     importchecker
-     pep8

Modified: zope.testbrowser/tags/3.10.3/setup.py
===================================================================
--- zope.testbrowser/tags/3.10.3/setup.py	2011-01-24 14:58:37 UTC (rev 119885)
+++ zope.testbrowser/tags/3.10.3/setup.py	2011-01-24 15:03:58 UTC (rev 119886)
@@ -27,7 +27,7 @@
 
 setup(
     name = 'zope.testbrowser',
-    version='3.11.0-1',
+    version='3.10.3',
     url = 'http://pypi.python.org/pypi/zope.testbrowser',
     license = 'ZPL 2.1',
     description = 'Programmable browser for functional black-box tests',
@@ -74,9 +74,6 @@
         'zope-functional-testing': [
             'zope.app.testing',
             ],
-        'wsgi': [
-            'wsgi_intercept',
-            ]
         },
     include_package_data = True,
     zip_safe = False,

Modified: zope.testbrowser/tags/3.10.3/src/zope/testbrowser/README.txt
===================================================================
--- zope.testbrowser/tags/3.10.3/src/zope/testbrowser/README.txt	2011-01-24 14:58:37 UTC (rev 119885)
+++ zope.testbrowser/tags/3.10.3/src/zope/testbrowser/README.txt	2011-01-24 15:03:58 UTC (rev 119886)
@@ -2,12 +2,6 @@
 Detailed Documentation
 ======================
 
-Different Browsers
-------------------
-
-HTTP Browser
-~~~~~~~~~~~~
-
 The ``zope.testbrowser.browser`` module exposes a ``Browser`` class that
 simulates a web browser similar to Mozilla Firefox or IE.
 
@@ -17,39 +11,6 @@
 This version of the browser object can be used to access any web site just as
 you would do using a normal web browser.
 
-WSGI Test Browser
-~~~~~~~~~~~~~~~~~
-
-There is also a special version of the ``Browser`` class which uses
-`wsgi_intercept`_ and can be used to do functional testing of WSGI
-applications, it can be imported from ``zope.testbrowser.wsgi``:
-
-    >>> from zope.testbrowser.wsgi import Browser
-    >>> browser = Browser()
-
-.. _`wsgi_intercept`: http://pypi.python.org/pypi/wsgi_intercept
-
-To use this browser you have to:
-
-  * use the `wsgi` extra of the ``zope.testbrowser`` egg,
-
-  * write a subclass of ``zope.testbrowser.wsgi.Layer`` and override the
-    ``make_wsgi_app`` method,
-
-  * use an instance of the class as the test layer of your test.
-
-Example:
-
-    >>> import zope.testbrowser.wsgi
-    >>> class SimpleLayer(zope.testbrowser.wsgi.Layer):
-    ...     def make_wsgi_app(self):
-    ...         return simple_app
-
-Where ``simple_app`` is the callable of your WSGI application.
-
-Zope 3 Test Browser
-~~~~~~~~~~~~~~~~~~~
-
 There is also a special version of the ``Browser`` class used to do functional
 testing of Zope 3 applications, it can be imported from
 ``zope.testbrowser.testing``:
@@ -57,12 +18,8 @@
     >>> from zope.testbrowser.testing import Browser
     >>> browser = Browser()
 
-Bowser Usage
-------------
+An initial page to load can be passed to the ``Browser`` constructor:
 
-All browsers are used the same way.  An initial page to load can be passed
-to the ``Browser`` constructor:
-
     >>> browser = Browser('http://localhost/@@/testbrowser/simple.html')
     >>> browser.url
     'http://localhost/@@/testbrowser/simple.html'

Copied: zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests.py (from rev 119868, zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests.py)
===================================================================
--- zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests.py	                        (rev 0)
+++ zope.testbrowser/tags/3.10.3/src/zope/testbrowser/tests.py	2011-01-24 15:03:58 UTC (rev 119886)
@@ -0,0 +1,504 @@
+##############################################################################
+#
+# Copyright (c) 2004 Zope Foundation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+"""Real test for file-upload and beginning of a better internal test framework
+"""
+import unittest
+
+import cStringIO
+import doctest
+import httplib
+import mechanize
+import os
+import re
+import socket
+import sys
+
+from zope.app.testing.functional import FunctionalDocFileSuite
+import zope.app.testing.functional
+import zope.testbrowser.browser
+import zope.testing.renormalizing
+
+
+def set_next_response(body, headers=None, status='200', reason='OK'):
+    global next_response_body
+    global next_response_headers
+    global next_response_status
+    global next_response_reason
+    if headers is None:
+        headers = (
+            'Content-Type: text/html\r\n'
+            'Content-Length: %s\r\n'
+            % len(body))
+    next_response_body = body
+    next_response_headers = headers
+    next_response_status = status
+    next_response_reason = reason
+
+
+class FauxConnection(object):
+    """A ``mechanize`` compatible connection object."""
+
+    def __init__(self, host, timeout=None):
+        pass
+
+    def set_debuglevel(self, level):
+        pass
+
+    def _quote(self, url):
+        # the publisher expects to be able to split on whitespace, so we have
+        # to make sure there is none in the URL
+        return url.replace(' ', '%20')
+
+    def request(self, method, url, body=None, headers=None):
+        if body is None:
+            body = ''
+
+        if url == '':
+            url = '/'
+
+        url = self._quote(url)
+
+        # Construct the headers.
+        header_chunks = []
+        if headers is not None:
+            for header in headers.items():
+                header_chunks.append('%s: %s' % header)
+            headers = '\n'.join(header_chunks) + '\n'
+        else:
+            headers = ''
+
+        # Construct the full HTTP request string, since that is what the
+        # ``HTTPCaller`` wants.
+        request_string = (method + ' ' + url + ' HTTP/1.1\n'
+                          + headers + '\n' + body)
+
+        print request_string.replace('\r', '')
+
+    def getresponse(self):
+        """Return a ``mechanize`` compatible response.
+
+        The goal of this method is to convert the Zope Publisher's response to
+        a ``mechanize`` compatible response, which is also understood by
+        mechanize.
+        """
+        return FauxResponse(next_response_body,
+                            next_response_headers,
+                            next_response_status,
+                            next_response_reason,
+                            )
+
+
+class FauxResponse(object):
+
+    def __init__(self, content, headers, status, reason):
+        self.content = content
+        self.status = status
+        self.reason = reason
+        self.msg = httplib.HTTPMessage(cStringIO.StringIO(headers), 0)
+        self.content_as_file = cStringIO.StringIO(self.content)
+
+    def read(self, amt=None):
+        return self.content_as_file.read(amt)
+
+    def close(self):
+        """To overcome changes in mechanize and socket in python2.5"""
+        pass
+
+
+class FauxHTTPHandler(mechanize.HTTPHandler):
+
+    http_request = mechanize.HTTPHandler.do_request_
+
+    def http_open(self, req):
+        """Open an HTTP connection having a ``mechanize`` request."""
+        # Here we connect to the publisher.
+
+        if sys.version_info > (2, 6) and not hasattr(req, 'timeout'):
+            # Workaround mechanize incompatibility with Python
+            # 2.6. See: LP #280334
+            req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+        return self.do_open(FauxConnection, req)
+
+
+class FauxMechanizeBrowser(mechanize.Browser):
+
+    handler_classes = {
+        # scheme handlers
+        "http": FauxHTTPHandler,
+
+        "_http_error": mechanize.HTTPErrorProcessor,
+        "_http_default_error": mechanize.HTTPDefaultErrorHandler,
+
+        # feature handlers
+        "_authen": mechanize.HTTPBasicAuthHandler,
+        "_redirect": mechanize.HTTPRedirectHandler,
+        "_cookies": mechanize.HTTPCookieProcessor,
+        "_refresh": mechanize.HTTPRefreshProcessor,
+        "_referer": mechanize.Browser.handler_classes['_referer'],
+        "_equiv": mechanize.HTTPEquivProcessor,
+        }
+
+    default_schemes = ["http"]
+    default_others = ["_http_error", "_http_default_error"]
+    default_features = ["_authen", "_redirect", "_cookies"]
+
+
+class Browser(zope.testbrowser.browser.Browser):
+
+    def __init__(self, url=None):
+        mech_browser = FauxMechanizeBrowser()
+        super(Browser, self).__init__(url=url, mech_browser=mech_browser)
+
+    def open(self, body, headers=None, status=200, reason='OK',
+             url='http://localhost/'):
+        set_next_response(body, headers, status, reason)
+        zope.testbrowser.browser.Browser.open(self, url)
+
+
+def test_submit_duplicate_name():
+    """
+    This test was inspired by bug #723 as testbrowser would pick up the wrong
+    button when having the same name twice in a form.
+
+    >>> browser = Browser()
+
+
+    When given a form with two submit buttons that have the same name:
+
+    >>> browser.open('''\
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <input type="submit" name="submit_me" value="GOOD" />
+    ...      <input type="submit" name="submit_me" value="BAD" />
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+
+    We can specify the second button through it's label/value:
+
+    >>> browser.getControl('BAD')
+    <SubmitControl name='submit_me' type='submit'>
+    >>> browser.getControl('BAD').value
+    'BAD'
+    >>> browser.getControl('BAD').click() # doctest: +REPORT_NDIFF +ELLIPSIS
+    POST / HTTP/1.1
+    ...
+    Content-type: multipart/form-data; ...
+    Content-disposition: form-data; name="submit_me"
+    <BLANKLINE>
+    BAD
+    ...
+
+
+    This also works if the labels have whitespace around them (this tests a
+    regression caused by the original fix for the above):
+
+    >>> browser.open('''\
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <input type="submit" name="submit_me" value=" GOOD " />
+    ...      <input type="submit" name="submit_me" value=" BAD " />
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+    >>> browser.getControl('BAD')
+    <SubmitControl name='submit_me' type='submit'>
+    >>> browser.getControl('BAD').value
+    ' BAD '
+    >>> browser.getControl('BAD').click() # doctest: +REPORT_NDIFF +ELLIPSIS
+    POST / HTTP/1.1
+    ...
+    Content-type: multipart/form-data; ...
+    Content-disposition: form-data; name="submit_me"
+    <BLANKLINE>
+     BAD 
+    ...
+"""
+
+
+def test_file_upload():
+    """
+
+    >>> browser = Browser()
+
+
+    When given a form with a file-upload
+
+    >>> browser.open('''\
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <input name="foo" type="file" />
+    ...      <input type="submit" value="OK" />
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+
+    Fill in the form value using add_file:
+
+    >>> browser.getControl(name='foo').add_file(
+    ...     cStringIO.StringIO('sample_data'), 'text/foo', 'x.foo')
+    >>> browser.getControl('OK').click() # doctest: +REPORT_NDIFF +ELLIPSIS
+    POST / HTTP/1.1
+    ...
+    Content-type: multipart/form-data; ...
+    Content-disposition: form-data; name="foo"; filename="x.foo"
+    Content-type: text/foo
+    <BLANKLINE>
+    sample_data
+    ...
+
+
+    You can pass a string to add_file:
+
+    >>> browser.getControl(name='foo').add_file(
+    ...     'blah blah blah', 'text/blah', 'x.blah')
+    >>> browser.getControl('OK').click() # doctest: +REPORT_NDIFF +ELLIPSIS
+    POST / HTTP/1.1
+    ...
+    Content-type: multipart/form-data; ...
+    Content-disposition: form-data; name="foo"; filename="x.blah"
+    Content-type: text/blah
+    <BLANKLINE>
+    blah blah blah
+    ...
+    """
+
+def test_submit_gets_referrer():
+    """
+    Test for bug #98437: No HTTP_REFERER was sent when submitting a form.
+
+    >>> browser = Browser()
+
+
+    A simple form for testing, like abobe.
+
+    >>> browser.open('''\
+    ... <html><body>
+    ...   <form id="form" action="." method="post"
+    ...                   enctype="multipart/form-data">
+    ...      <input type="submit" name="submit_me" value="GOOD" />
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+
+    Now submit the form, and see that we get an referrer along:
+
+    >>> form = browser.getForm(id='form')
+    >>> form.submit(name='submit_me') # doctest: +ELLIPSIS
+    POST / HTTP/1.1
+    ...
+    Referer: http://localhost/
+    ...
+"""
+
+
+def test_new_instance_no_contents_should_not_fail(self):
+    """
+    When first instantiated, the browser has no contents.
+    (Regression test for <http://bugs.launchpad.net/zope3/+bug/419119>)
+
+    >>> browser = Browser()
+    >>> print browser.contents
+    None
+    """
+
+
+def test_strip_linebreaks_from_textarea(self):
+    """
+    >>> browser = Browser()
+
+    According to http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.1 line
+    break immediately after start tags or immediately before end tags must be
+    ignored, but real browsers only ignore a line break after a start tag.
+    So if we give the following form:
+
+    >>> browser.open('''
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <textarea name="textarea">
+    ... Foo
+    ... </textarea>
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+
+    The value of the textarea won't contain the first line break:
+
+    >>> browser.getControl(name='textarea').value
+    'Foo\\n'
+
+
+    Of course, if we add line breaks, so that there are now two line breaks
+    after the start tag, the textarea value will start and end with a line
+    break.
+
+    >>> browser.open('''
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <textarea name="textarea">
+    ...
+    ... Foo
+    ... </textarea>
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+    >>> browser.getControl(name='textarea').value
+    '\\nFoo\\n'
+
+
+    Also, if there is some other whitespace after the start tag, it will be
+    preserved.
+
+    >>> browser.open('''
+    ... <html><body>
+    ...   <form action="." method="post" enctype="multipart/form-data">
+    ...      <textarea name="textarea">  Foo  </textarea>
+    ...   </form></body></html>
+    ... ''') # doctest: +ELLIPSIS
+    GET / HTTP/1.1
+    ...
+
+    >>> browser.getControl(name='textarea').value
+    '  Foo  '
+    """
+
+
+def test_relative_link():
+    """
+    RFC 1808 specifies how relative URLs should be resolved, let's see
+    that we conform to it. Let's start with a simple example.
+
+    >>> browser = Browser()
+    >>> browser.open('''\
+    ... <html><body>
+    ...     <a href="foo">link</a>
+    ... </body></html>
+    ... ''', url='http://localhost/bar') # doctest: +ELLIPSIS
+    GET /bar HTTP/1.1
+    ...
+
+    >>> link = browser.getLink('link')
+    >>> link.url
+    'http://localhost/foo'
+
+
+    It's possible to have a relative URL consisting of only a query part. In
+    that case it should simply be appended to the base URL.
+
+    >>> browser.open('''\
+    ... <html><body>
+    ...     <a href="?key=value">link</a>
+    ... </body></html>
+    ... ''', url='http://localhost/bar') # doctest: +ELLIPSIS
+    GET /bar HTTP/1.1
+    ...
+
+    >>> link = browser.getLink('link')
+    >>> link.url
+    'http://localhost/bar?key=value'
+
+
+    In the example above, the base URL was the page URL, but we can also
+    specify a base URL using a <base> tag.
+
+    >>> browser.open('''\
+    ... <html><head><base href="http://localhost/base" /></head><body>
+    ...     <a href="?key=value">link</a>
+    ... </body></html>
+    ... ''', url='http://localhost/base/bar') # doctest: +ELLIPSIS
+    GET /base/bar HTTP/1.1
+    ...
+
+    >>> link = browser.getLink('link')
+    >>> link.url
+    'http://localhost/base?key=value'
+    """
+
+
+class win32CRLFtransformer(object):
+    def sub(self, replacement, text):
+        return text.replace(r'\r', '')
+
+checker = zope.testing.renormalizing.RENormalizing([
+    (re.compile(r'^--\S+\.\S+\.\S+', re.M), '-' * 30),
+    (re.compile(r'boundary=\S+\.\S+\.\S+'), 'boundary=' + '-' * 30),
+    (re.compile(r'^---{10}.*', re.M), '-' * 30),
+    (re.compile(r'boundary=-{10}.*'), 'boundary=' + '-' * 30),
+    (re.compile(r'User-agent:\s+\S+'), 'User-agent: Python-urllib/2.4'),
+    (re.compile(r'HTTP_USER_AGENT:\s+\S+'),
+     'HTTP_USER_AGENT: Python-urllib/2.4'),
+    (re.compile(r'Content-[Ll]ength:.*'), 'Content-Length: 123'),
+    (re.compile(r'Status: 200.*'), 'Status: 200 OK'),
+    (win32CRLFtransformer(), None),
+    (re.compile(r'User-Agent: Python-urllib/2.5'),
+     'User-agent: Python-urllib/2.4'),
+    (re.compile(r'User-Agent: Python-urllib/2.6'),
+     'User-agent: Python-urllib/2.4'),
+    (re.compile(r'Host: localhost'), 'Connection: close'),
+    (re.compile(r'Content-Type: '), 'Content-type: '),
+    (re.compile(r'Content-Disposition: '), 'Content-disposition: '),
+    ])
+
+TestBrowserLayer = zope.app.testing.functional.ZCMLLayer(
+    os.path.join(os.path.split(__file__)[0], 'ftests/ftesting.zcml'),
+    __name__, 'TestBrowserLayer', allow_teardown=True)
+
+
+def test_suite():
+    flags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
+
+    readme = FunctionalDocFileSuite('README.txt', optionflags=flags,
+        checker=checker)
+    readme.layer = TestBrowserLayer
+
+    cookies = FunctionalDocFileSuite('cookies.txt', optionflags=flags,
+        checker=checker)
+    cookies.layer = TestBrowserLayer
+
+    fixed_bugs = FunctionalDocFileSuite('fixed-bugs.txt', optionflags=flags)
+    fixed_bugs.layer = TestBrowserLayer
+
+    wire = FunctionalDocFileSuite('over_the_wire.txt', optionflags=flags)
+    wire.level = 2
+    wire.layer = TestBrowserLayer
+
+    this_file = doctest.DocTestSuite(checker=checker)
+
+    return unittest.TestSuite((this_file, readme, fixed_bugs, wire, cookies))
+
+def run_suite(suite):
+    runner = unittest.TextTestRunner(sys.stdout, verbosity=1)
+    result = runner.run(suite)
+    if not result.wasSuccessful():
+        if len(result.errors) == 1 and not result.failures:
+            err = result.errors[0][1]
+        elif len(result.failures) == 1 and not result.errors:
+            err = result.failures[0][1]
+        else:
+            err = "errors occurred; run in verbose mode for details"
+        print err
+
+if __name__ == "__main__":
+    run_suite(test_suite())

Deleted: zope.testbrowser/tags/3.10.3/src/zope/testbrowser/wsgi.py
===================================================================
--- zope.testbrowser/tags/3.10.3/src/zope/testbrowser/wsgi.py	2011-01-24 14:58:37 UTC (rev 119885)
+++ zope.testbrowser/tags/3.10.3/src/zope/testbrowser/wsgi.py	2011-01-24 15:03:58 UTC (rev 119886)
@@ -1,129 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2010-2011 Zope Foundation and Contributors.
-# All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE.
-#
-##############################################################################
-import base64
-import re
-import wsgi_intercept
-import wsgi_intercept.mechanize_intercept
-import zope.testbrowser.browser
-
-
-# List of hostname where the test browser/http function replies to
-TEST_HOSTS = ['localhost', '127.0.0.1']
-
-
-class InterceptBrowser(wsgi_intercept.mechanize_intercept.Browser):
-
-    default_schemes = ['http']
-    default_others = ['_http_error',
-                      '_http_default_error']
-    default_features = ['_redirect', '_cookies', '_referer', '_refresh',
-                        '_equiv', '_basicauth', '_digestauth']
-
-
-class Browser(zope.testbrowser.browser.Browser):
-    """Override the zope.testbrowser.browser.Browser interface so that it
-    uses InterceptBrowser.
-    """
-
-    def __init__(self, *args, **kw):
-        kw['mech_browser'] = InterceptBrowser()
-        super(Browser, self).__init__(*args, **kw)
-
-
-# Compatibility helpers to behave like zope.app.testing
-
-basicre = re.compile('Basic (.+)?:(.+)?$')
-
-
-def auth_header(header):
-    """This function takes an authorization HTTP header and encode the
-    couple user, password into base 64 like the HTTP protocol wants
-    it.
-    """
-    match = basicre.match(header)
-    if match:
-        u, p = match.group(1, 2)
-        if u is None:
-            u = ''
-        if p is None:
-            p = ''
-        auth = base64.encodestring('%s:%s' % (u, p))
-        return 'Basic %s' % auth[:-1]
-    return header
-
-
-def is_wanted_header(header):
-    """Return True if the given HTTP header key is wanted.
-    """
-    key, value = header
-    return key.lower() not in ('x-content-type-warning', 'x-powered-by')
-
-
-class AuthorizationMiddleware(object):
-    """This middleware makes the WSGI application compatible with the
-    HTTPCaller behavior defined in zope.app.testing.functional:
-    - It modifies the HTTP Authorization header to encode user and
-      password into base64 if it is Basic authentication.
-    """
-
-    def __init__(self, wsgi_stack):
-        self.wsgi_stack = wsgi_stack
-
-    def __call__(self, environ, start_response):
-        # Handle authorization
-        auth_key = 'HTTP_AUTHORIZATION'
-        if auth_key in environ:
-            environ[auth_key] = auth_header(environ[auth_key])
-
-        # Remove unwanted headers
-        def application_start_response(status, headers, exc_info=None):
-            headers = filter(is_wanted_header, headers)
-            start_response(status, headers)
-
-        for entry in self.wsgi_stack(environ, application_start_response):
-            yield entry
-
-
-class Layer(object):
-    """Test layer which sets up WSGI application for use with
-    wsgi_intercept/testbrowser.
-
-    """
-
-    __bases__ = ()
-    __name__ = 'Layer'
-
-    def make_wsgi_app(self):
-        # Override this method in subclasses of this layer in order to set up
-        # the WSGI application.
-        raise NotImplementedError
-
-    def cooperative_super(self, method_name):
-        # Calling `super` for multiple inheritance:
-        method = getattr(super(Layer, self), method_name, None)
-        if method is not None:
-            method()
-
-    def setUp(self):
-        self.cooperative_super('setUp')
-        self.app = self.make_wsgi_app()
-        factory = lambda: AuthorizationMiddleware(self.app)
-
-        for host in TEST_HOSTS:
-            wsgi_intercept.add_wsgi_intercept(host, 80, factory)
-
-    def tearDown(self):
-        for host in TEST_HOSTS:
-            wsgi_intercept.remove_wsgi_intercept(host, 80)
-        self.cooperative_super('tearDown')



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