from cubicweb.view import View

from cubicweb.web import Redirect

from cubicweb import ValidationError

class Redirector(View):

    __regid__ = 'redirector'

    def call(self, rset=None):

        self._cw.set_header('Cache-Control', 'no-cache')

        raise Redirect('http://example.org')

def put_in_uncommitable_state(request):

    try:

        request.cw_cnx.execute('SET U login NULL WHERE U login "anon"')

    except ValidationError:

        pass

    request.response.body = b'OK'

    return request.response

class CoreTest(PyramidCWTest):

    anonymous_allowed = True

    def includeme(self, config):

        config.add_route('uncommitable', '/uncommitable')

        config.add_view(put_in_uncommitable_state, route_name='uncommitable')

    def test_cw_to_pyramid_copy_headers_on_redirect(self):

        self.vreg.register(Redirector)

        try:

            res = self.webapp.get('/?vid=redirector', expect_errors=True)

            self.assertEqual(res.status_int, 303)

            self.assertEqual(res.headers['Cache-Control'], 'no-cache')

        finally:

            self.vreg.unregister(Redirector)

    def test_uncommitable_cnx(self):

        res = self.webapp.get('/uncommitable')

        self.assertEqual(res.text, 'OK')

        self.assertEqual(res.status_int, 200)

if __name__ == '__main__':

    from unittest import main

    main()