devtools/_apptest.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Fri, 22 May 2009 00:06:20 +0200
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"""Hidden internals for the devtools.apptest module
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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"""
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__docformat__ = "restructuredtext en"
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import sys, traceback
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from logilab.common.pytest import pause_tracing, resume_tracing
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import yams.schema
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from cubicweb.dbapi import repo_connect, ConnectionProperties, ProgrammingError
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from cubicweb.cwvreg import CubicWebRegistry
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from cubicweb.web.application import CubicWebPublisher
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from cubicweb.web import Redirect
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from cubicweb.devtools import ApptestConfiguration, init_test_database
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from cubicweb.devtools.fake import FakeRequest
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SYSTEM_ENTITIES = ('CWGroup', 'CWUser',
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                   'CWAttribute', 'CWRelation',
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                   'CWConstraint', 'CWConstraintType', 'CWProperty',
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                   'CWEType', 'CWRType',
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                   'State', 'Transition', 'TrInfo',
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                   'RQLExpression',
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                   )
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SYSTEM_RELATIONS = (
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    # virtual relation
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    'identity',
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    # metadata
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    'is', 'is_instance_of', 'owned_by', 'created_by', 'specializes',
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    # workflow related
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    'state_of', 'transition_of', 'initial_state', 'allowed_transition',
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    'destination_state', 'in_state', 'wf_info_for', 'from_state', 'to_state',
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    'condition',
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    # permission
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    'in_group', 'require_group', 'require_permission',
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    'read_permission', 'update_permission', 'delete_permission', 'add_permission',
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    # eproperty
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    'for_user',
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    # schema definition
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    'relation_type', 'from_entity', 'to_entity',
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    'constrained_by', 'cstrtype', 'widget',
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    # deducted from other relations
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    'primary_email',
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                    )
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def unprotected_entities(app_schema, strict=False):
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    """returned a Set of each non final entity type, excluding CWGroup, and CWUser...
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    """
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    if strict:
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        protected_entities = yams.schema.BASE_TYPES
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    else:
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        protected_entities = yams.schema.BASE_TYPES.union(set(SYSTEM_ENTITIES))
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    entities = set(app_schema.entities())
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    return entities - protected_entities
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def ignore_relations(*relations):
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    global SYSTEM_RELATIONS
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    SYSTEM_RELATIONS += relations
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class TestEnvironment(object):
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    """TestEnvironment defines a context (e.g. a config + a given connection) in
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    which the tests are executed
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    """
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    def __init__(self, appid, reporter=None, verbose=False,
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                 configcls=ApptestConfiguration, requestcls=FakeRequest):
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        config = configcls(appid)
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        self.requestcls = requestcls
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        self.cnx = None
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        config.db_perms = False
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        source = config.sources()['system']
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        if verbose:
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            print "init test database ..."
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        self.vreg = vreg = CubicWebRegistry(config)
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        self.admlogin = source['db-user']
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        # restore database <=> init database
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        self.restore_database()
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        if verbose:
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            print "init done"
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        config.repository = lambda x=None: self.repo
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        self.app = CubicWebPublisher(config, vreg=vreg)
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        self.verbose = verbose
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        schema = self.vreg.schema
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        # else we may run into problems since email address are ususally share in app tests
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        # XXX should not be necessary anymore
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        schema.rschema('primary_email').set_rproperty('CWUser', 'EmailAddress', 'composite', False)
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        self.deletable_entities = unprotected_entities(schema)
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    def restore_database(self):
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        """called by unittests' tearDown to restore the original database
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        """
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        try:
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            pause_tracing()
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            if self.cnx:
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                self.cnx.close()
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            source = self.vreg.config.sources()['system']
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            self.repo, self.cnx = init_test_database(driver=source['db-driver'],
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                                                     vreg=self.vreg)
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            self._orig_cnx = self.cnx
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            resume_tracing()
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        except:
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            resume_tracing()
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            traceback.print_exc()
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            sys.exit(1)
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        # XXX cnx decoration is usually done by the repository authentication manager,
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        # necessary in authentication tests
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        self.cnx.vreg = self.vreg
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        self.cnx.login = source['db-user']
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        self.cnx.password = source['db-password']
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    def create_user(self, login, groups=('users',), req=None):
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        req = req or self.create_request()
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        cursor = self._orig_cnx.cursor(req)
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        rset = cursor.execute('INSERT CWUser X: X login %(login)s, X upassword %(passwd)s,'
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                              'X in_state S WHERE S name "activated"',
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                              {'login': unicode(login), 'passwd': login.encode('utf8')})
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        user = rset.get_entity(0, 0)
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        cursor.execute('SET X in_group G WHERE X eid %%(x)s, G name IN(%s)'
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                       % ','.join(repr(g) for g in groups),
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                       {'x': user.eid}, 'x')
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        user.clear_related_cache('in_group', 'subject')
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        self._orig_cnx.commit()
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        return user
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    def login(self, login, password=None):
0
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        if login == self.admlogin:
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            self.restore_connection()
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        else:
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            self.cnx = repo_connect(self.repo, unicode(login),
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   138
                                    password or str(login),
0
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   139
                                    ConnectionProperties('inmemory'))
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        if login == self.vreg.config.anonymous_user()[0]:
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            self.cnx.anonymous_connection = True
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        return self.cnx
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0
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    def restore_connection(self):
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        if not self.cnx is self._orig_cnx:
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            try:
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                self.cnx.close()
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            except ProgrammingError:
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                pass # already closed
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        self.cnx = self._orig_cnx
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    ############################################################################
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    def execute(self, rql, args=None, eidkey=None, req=None):
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        """executes <rql>, builds a resultset, and returns a couple (rset, req)
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        where req is a FakeRequest
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        """
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        req = req or self.create_request(rql=rql)
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   159
        return self.cnx.cursor(req).execute(unicode(rql), args, eidkey)
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0
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    def create_request(self, rql=None, **kwargs):
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        """executes <rql>, builds a resultset, and returns a
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        couple (rset, req) where req is a FakeRequest
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   164
        """
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        if rql:
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            kwargs['rql'] = rql
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        req = self.requestcls(self.vreg, form=kwargs)
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        req.set_connection(self.cnx)
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        return req
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0
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   171
    def get_rset_and_req(self, rql, optional_args=None, args=None, eidkey=None):
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        """executes <rql>, builds a resultset, and returns a
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        couple (rset, req) where req is a FakeRequest
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   174
        """
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        return (self.execute(rql, args, eidkey),
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                self.create_request(rql=rql, **optional_args or {}))
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   177
0
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   178
    def check_view(self, rql, vid, optional_args, template='main'):
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   179
        """checks if vreg.view() raises an exception in this environment
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   180
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   181
        If any exception is raised in this method, it will be considered
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   182
        as a TestFailure
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   183
        """
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   184
        return self.call_view(vid, rql,
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   185
                              template=template, optional_args=optional_args)
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   186
0
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   187
    def call_view(self, vid, rql, template='main', optional_args=None):
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   188
        """shortcut for self.vreg.view()"""
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   189
        assert template
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   190
        if optional_args is None:
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   191
            optional_args = {}
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   192
        optional_args['vid'] = vid
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   193
        req = self.create_request(rql=rql, **optional_args)
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diff changeset
   194
        return self.vreg.main_template(req, template)
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diff changeset
   195
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   196
    def call_edit(self, req):
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   197
        """shortcut for self.app.edit()"""
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   198
        controller = self.app.select_controller('edit', req)
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   199
        try:
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   200
            controller.publish()
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   201
        except Redirect:
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   202
            result = 'success'
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   203
        else:
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   204
            raise Exception('edit should raise Redirect on success')
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   205
        req.cnx.commit()
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   206
        return result
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   207
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   208
    def iter_possible_views(self, req, rset):
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        """returns a list of possible vids for <rql>"""
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   210
        for view in self.vreg.possible_views(req, rset):
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   211
            if view.category == 'startupview':
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   212
                continue
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   213
            yield view.id
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   214
        if rset.rowcount == 1:
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   215
            yield 'edition'
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diff changeset
   216
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   217
    def iter_startup_views(self, req):
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   218
        """returns the list of startup views"""
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   219
        for view in self.vreg.possible_views(req, None):
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   220
            if view.category != 'startupview':
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   221
                continue
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   222
            yield view.id
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   223
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   224
    def iter_possible_actions(self, req, rset):
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   225
        """returns a list of possible vids for <rql>"""
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   226
        for action in self.vreg.possible_vobjects('actions', req, rset):
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   227
            yield action
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   228
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   229
class ExistingTestEnvironment(TestEnvironment):
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0
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   231
    def __init__(self, appid, sourcefile, verbose=False):
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   232
        config = ApptestConfiguration(appid, sourcefile=sourcefile)
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diff changeset
   233
        if verbose:
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   234
            print "init test database ..."
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   235
        source = config.sources()['system']
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   236
        self.vreg = CubicWebRegistry(config)
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diff changeset
   237
        self.cnx = init_test_database(driver=source['db-driver'],
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diff changeset
   238
                                      vreg=self.vreg)[1]
0
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diff changeset
   239
        if verbose:
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   240
            print "init done"
0
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   241
        self.app = CubicWebPublisher(config, vreg=self.vreg)
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   242
        self.verbose = verbose
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   243
        # this is done when the publisher is opening a connection
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   244
        self.cnx.vreg = self.vreg
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   245
0
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   246
    def setup(self, config=None):
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diff changeset
   247
        """config is passed by TestSuite but is ignored in this environment"""
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diff changeset
   248
        cursor = self.cnx.cursor()
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diff changeset
   249
        self.last_eid = cursor.execute('Any X WHERE X creation_date D ORDERBY D DESC LIMIT 1').rows[0][0]
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   250
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   251
    def cleanup(self):
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   252
        """cancel inserted elements during tests"""
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diff changeset
   253
        cursor = self.cnx.cursor()
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diff changeset
   254
        cursor.execute('DELETE Any X WHERE X eid > %(x)s', {'x' : self.last_eid}, eid_key='x')
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diff changeset
   255
        print "cleaning done"
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diff changeset
   256
        self.cnx.commit()