tests: improve detection of empty flash messages during the tests

rhodecode/tests/__init__.py

@@ -1,259 +1,261 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2016  RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 import os
 import time
 import logging
 import datetime
 import hashlib
 import tempfile
 from os.path import join as jn
 
 from tempfile import _RandomNameSequence
 
 from paste.deploy import loadapp
 from paste.script.appinstall import SetupCommand
 
 import pylons
 import pylons.test
 from pylons import config, url
 from pylons.i18n.translation import _get_translator
 from pylons.util import ContextObj
 
 from routes.util import URLGenerator
 from webtest import TestApp
 from nose.plugins.skip import SkipTest
 import pytest
 
 from rhodecode import is_windows
 from rhodecode.config.routing import ADMIN_PREFIX
 from rhodecode.model.meta import Session
 from rhodecode.model.db import User
 from rhodecode.lib import auth
 from rhodecode.lib.helpers import flash, link_to
 from rhodecode.lib.utils2 import safe_unicode, safe_str
 from rhodecode.tests.utils import get_session_from_response
 
 # TODO: johbo: Solve time zone related issues and remove this tweak
 os.environ['TZ'] = 'UTC'
 if not is_windows:
     time.tzset()
 
 log = logging.getLogger(__name__)
 
 __all__ = [
     'get_new_dir', 'TestController', 'SkipTest',
     'url', 'link_to', 'ldap_lib_installed', 'clear_all_caches',
     'assert_session_flash', 'login_user',
     'TESTS_TMP_PATH', 'HG_REPO', 'GIT_REPO', 'SVN_REPO',
     'NEW_HG_REPO', 'NEW_GIT_REPO',
     'HG_FORK', 'GIT_FORK', 'TEST_USER_ADMIN_LOGIN', 'TEST_USER_ADMIN_PASS',
     'TEST_USER_REGULAR_LOGIN', 'TEST_USER_REGULAR_PASS',
     'TEST_USER_REGULAR_EMAIL', 'TEST_USER_REGULAR2_LOGIN',
     'TEST_USER_REGULAR2_PASS', 'TEST_USER_REGULAR2_EMAIL', 'TEST_HG_REPO',
     'TEST_HG_REPO_CLONE', 'TEST_HG_REPO_PULL', 'TEST_GIT_REPO',
     'TEST_GIT_REPO_CLONE', 'TEST_GIT_REPO_PULL', 'SCM_TESTS',
 ]
 
 # Invoke websetup with the current config file
 # SetupCommand('setup-app').run([config_file])
 
 # SOME GLOBALS FOR TESTS
 TEST_DIR = tempfile.gettempdir()
 
 TESTS_TMP_PATH = jn(TEST_DIR, 'rc_test_%s' % _RandomNameSequence().next())
 TEST_USER_ADMIN_LOGIN = 'test_admin'
 TEST_USER_ADMIN_PASS = 'test12'
 TEST_USER_ADMIN_EMAIL = '[e-mail]'
 
 TEST_USER_REGULAR_LOGIN = 'test_regular'
 TEST_USER_REGULAR_PASS = 'test12'
 TEST_USER_REGULAR_EMAIL = '[e-mail]'
 
 TEST_USER_REGULAR2_LOGIN = 'test_regular2'
 TEST_USER_REGULAR2_PASS = 'test12'
 TEST_USER_REGULAR2_EMAIL = '[e-mail]'
 
 HG_REPO = 'vcs_test_hg'
 GIT_REPO = 'vcs_test_git'
 SVN_REPO = 'vcs_test_svn'
 
 NEW_HG_REPO = 'vcs_test_hg_new'
 NEW_GIT_REPO = 'vcs_test_git_new'
 
 HG_FORK = 'vcs_test_hg_fork'
 GIT_FORK = 'vcs_test_git_fork'
 
 ## VCS
 SCM_TESTS = ['hg', 'git']
 uniq_suffix = str(int(time.mktime(datetime.datetime.now().timetuple())))
 
 TEST_GIT_REPO = jn(TESTS_TMP_PATH, GIT_REPO)
 TEST_GIT_REPO_CLONE = jn(TESTS_TMP_PATH, 'vcsgitclone%s' % uniq_suffix)
 TEST_GIT_REPO_PULL = jn(TESTS_TMP_PATH, 'vcsgitpull%s' % uniq_suffix)
 
 TEST_HG_REPO = jn(TESTS_TMP_PATH, HG_REPO)
 TEST_HG_REPO_CLONE = jn(TESTS_TMP_PATH, 'vcshgclone%s' % uniq_suffix)
 TEST_HG_REPO_PULL = jn(TESTS_TMP_PATH, 'vcshgpull%s' % uniq_suffix)
 
 TEST_REPO_PREFIX = 'vcs-test'
 
 
 # skip ldap tests if LDAP lib is not installed
 ldap_lib_installed = False
 try:
     import ldap
     ldap_lib_installed = True
 except ImportError:
     # means that python-ldap is not installed
     pass
 
 
 def clear_all_caches():
     from beaker.cache import cache_managers
     for _cache in cache_managers.values():
         _cache.clear()
 
 
 def get_new_dir(title):
     """
     Returns always new directory path.
     """
     from rhodecode.tests.vcs.utils import get_normalized_path
     name_parts = [TEST_REPO_PREFIX]
     if title:
         name_parts.append(title)
     hex_str = hashlib.sha1('%s %s' % (os.getpid(), time.time())).hexdigest()
     name_parts.append(hex_str)
     name = '-'.join(name_parts)
     path = os.path.join(TEST_DIR, name)
     return get_normalized_path(path)
 
 
 @pytest.mark.usefixtures('app', 'index_location')
 class TestController(object):
 
     maxDiff = None
 
     def log_user(self, username=TEST_USER_ADMIN_LOGIN,
                  password=TEST_USER_ADMIN_PASS):
         self._logged_username = username
         self._session = login_user_session(self.app, username, password)
         self.csrf_token = auth.get_csrf_token(self._session)
 
         return self._session['rhodecode_user']
 
     def logout_user(self):
         logout_user_session(self.app, auth.get_csrf_token(self._session))
         self.csrf_token = None
         self._logged_username = None
         self._session = None
 
     def _get_logged_user(self):
         return User.get_by_username(self._logged_username)
 
     # TODO: remove, use plain assert in tests
     def assertEqual(self, a, b, msg=None):
         if msg:
             assert a == b, msg
         else:
             assert a == b
 
 
 def login_user_session(
         app, username=TEST_USER_ADMIN_LOGIN, password=TEST_USER_ADMIN_PASS):
     from rhodecode.tests.functional.test_login import login_url
     response = app.post(
         login_url,
         {'username': username, 'password': password})
     if 'invalid user name' in response.body:
         pytest.fail('could not login using %s %s' % (username, password))
 
     assert response.status == '302 Found'
     response = response.follow()
     assert response.status == '200 OK'
 
     session = get_session_from_response(response)
     assert 'rhodecode_user' in session
     rc_user = session['rhodecode_user']
     assert rc_user.get('username') == username
     assert rc_user.get('is_authenticated')
 
     return session
 
 
 def logout_user_session(app, csrf_token):
     from rhodecode.tests.functional.test_login import logut_url
     app.post(logut_url, {'csrf_token': csrf_token}, status=302)
 
 
 def login_user(app, username=TEST_USER_ADMIN_LOGIN,
                password=TEST_USER_ADMIN_PASS):
     return login_user_session(app, username, password)['rhodecode_user']
 
 
 def assert_session_flash(response=None, msg=None, category=None):
     """
     Assert on a flash message in the current session.
 
     :param msg: Required. The expected message. Will be evaluated if a
         :class:`LazyString` is passed in.
     :param response: Optional. For functional testing, pass in the response
         object. Otherwise don't pass in any value.
     :param category: Optional. If passed, the message category will be
         checked as well.
     """
     if msg is None:
         raise ValueError("Parameter msg is required.")
 
     messages = flash.pop_messages()
+    msg = _eval_if_lazy(msg)
+
+    assert messages, 'unable to find message `%s` in empty flash list' % msg
     message = messages[0]
 
-    msg = _eval_if_lazy(msg)
     message_text = _eval_if_lazy(message.message)
 
     if msg not in message_text:
         msg = u'msg `%s` not found in session flash: got `%s` instead' % (
             msg, message_text)
         pytest.fail(safe_str(msg))
     if category:
         assert category == message.category
 
 
 def _eval_if_lazy(value):
     return value.eval() if hasattr(value, 'eval') else value
 
 
 def assert_not_in_session_flash(response, msg, category=None):
     assert 'flash' in response.session, 'Response session has no flash key'
     message_category, message_text = response.session['flash'][0]
     if msg in message_text:
         msg = u'msg `%s` found in session flash: got `%s` instead' % (
             msg, message_text)
         pytest.fail(safe_str(msg))
     if category:
         assert category == message_category
 
 
 def assert_session_flash_is_empty(response):
     if 'flash' in response.session:
         msg = 'flash messages are present in session:%s' % \
               response.session['flash'][0]
         pytest.fail(safe_str(msg))