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✏️ test_dec.txt

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A test of the decorator module::

>>> from doctest import ELLIPSIS
    >>> from webob.dec import wsgify
    >>> from webob import Response, Request
    >>> from webob import exc
    >>> @wsgify
    ... def test_app(req):
    ...     return 'hey, this is a test: %s' % req.url
    >>> def testit(app, req):
    ...     if isinstance(req, basestring):
    ...         req = Request.blank(req)
    ...     resp = req.get_response(app)
    ...     print resp
    >>> testit(test_app, '/a url')
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 45
    <BLANKLINE>
    hey, this is a test: http://localhost/a%20url
    >>> test_app
    wsgify(test_app)

Now some middleware testing::

>>> @wsgify.middleware
    ... def set_urlvar(req, app, **vars):
    ...     req.urlvars.update(vars)
    ...     return app(req)
    >>> @wsgify
    ... def show_vars(req):
    ...     return 'These are the vars: %r' % (sorted(req.urlvars.items()))
    >>> show_vars2 = set_urlvar(show_vars, a=1, b=2)
    >>> show_vars2
    wsgify.middleware(set_urlvar)(wsgify(show_vars), a=1, b=2)
    >>> testit(show_vars2, '/path')
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 40
    <BLANKLINE>
    These are the vars: [('a', 1), ('b', 2)]

Some examples from Sergey::

>>> class HostMap(dict):
    ...     @wsgify
    ...     def __call__(self, req):
    ...         return self[req.host.split(':')[0]]
    >>> app = HostMap()
    >>> app['example.com'] = Response('1')
    >>> app['other.com'] = Response('2')
    >>> print Request.blank('http://example.com/').get_response(wsgify(app))
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 1
    <BLANKLINE>
    1

>>> @wsgify.middleware
    ... def override_https(req, normal_app, secure_app):
    ...     if req.scheme == 'https':
    ...         return secure_app
    ...     else:
    ...         return normal_app
    >>> app = override_https(Response('http'), secure_app=Response('https'))
    >>> print Request.blank('http://x.com/').get_response(app)
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 4
    <BLANKLINE>
    http

A status checking middleware::

>>> @wsgify.middleware
    ... def catch(req, app, catchers):
    ...     resp = req.get_response(app)
    ...     return catchers.get(resp.status_int, resp)
    >>> @wsgify
    ... def simple(req):
    ...     return other_app # Just to mess around
    >>> @wsgify
    ... def other_app(req):
    ...     return Response('hey', status_int=int(req.path_info.strip('/')))
    >>> app = catch(simple, catchers={500: Response('error!'), 404: Response('nothing')})
    >>> print Request.blank('/200').get_response(app)
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 3
    <BLANKLINE>
    hey
    >>> print Request.blank('/500').get_response(app)
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 6
    <BLANKLINE>
    error!
    >>> print Request.blank('/404').get_response(app)
    200 OK
    Content-Type: text/html; charset=UTF-8
    Content-Length: 7
    <BLANKLINE>
    nothing

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✏️ test_dec.txt