tests: don't run text pages tests with backoffice open (#6726)

tests/test_texts.py

@@ -13,6 +13,10 @@ def setup_module(module):
     pub = create_temporary_pub()
     req = HTTPRequest(None, {})
     pub._set_request(req)
+    # create an user otherwise the backoffice is open and a button to edit the
+    # text gets automatically added.
+    user = pub.user_class(name='foo')
+    user.store()
 
 def teardown_module(module):
     shutil.rmtree(pub.APP_DIR)