fix tests with webdav

backend/tests_configs.ini

 email.notification.smtp.password = just_a_password
 website.base_url = http://localhost:6543
 color.config_file_path = %(here)s/color-test.json
+
+[webdav_test]
+website.base_url = http://localhost:6543
+sqlalchemy.url = sqlite:///:memory:
+user.auth_token.validity = 604800
+depot_storage_dir = /tmp/test/depot
+depot_storage_name = test
+preview_cache_dir = /tmp/test/preview_cache
+color.config_file_path = %(here)s/color-test.json
+wsgidav.config_path = %(here)s/wsgidav-test.conf

backend/tracim_backend/tests/library/test_webdav.py

 
 class TestWebdavFactory(StandardTest):
 
+    config_section = 'webdav_test'
+
     def test_unit__initConfig__ok__nominal_case(self):
         """
         Check if config is correctly modify for wsgidav using mocked
         wsgidav and tracim conf (as dict)
         :return:
         """
-        tracim_settings = {
-            'website.base_url': 'http://localhost:6543',
-            'sqlalchemy.url': 'sqlite:///:memory:',
-            'user.auth_token.validity': '604800',
-            'depot_storage_dir': '/tmp/test/depot',
-            'depot_storage_name': 'test',
-            'preview_cache_dir': '/tmp/test/preview_cache',
-            'wsgidav.config_path': 'development.ini'
-
-        }
+        tracim_settings = self.settings
         wsgidav_setting = DEFAULT_CONFIG.copy()
         wsgidav_setting.update(
             {

backend/wsgidav-test.conf

+host  = "0.0.0.0"
+port = 3030
+show_history = True
+show_deleted = True
+show_archived = True
+manager_locks = True
+root_path = ''
+acceptbasic = True
+acceptdigest = False
+defaultdigest = False