TD-793: Refactor cascade tests (#103)

* Refactor cascade tests

* Fix spec

* Fix tests

apps/hellgate/src/hg_cascade.erl

@@ -41,7 +41,7 @@ handle_trigger_check(negative_trigger) ->
     false.
 
 is_user_interaction_triggered(undefined, _, _) ->
-    not_trigger;
+    not_triggered;
 is_user_interaction_triggered(
     #domain_CascadeWhenNoUI{}, Route, Sessions
 ) ->

apps/hellgate/test/hg_ct_helper.erl

@@ -315,11 +315,11 @@ start_apps(Apps) ->
         Apps
     ).
 
--type config() :: [{atom(), term()}].
+-type config() :: [{term(), term()}].
 -type test_case_name() :: atom().
 -type group_name() :: atom().
 
--spec cfg(atom(), config()) -> term().
+-spec cfg(term(), config()) -> term().
 cfg(Key, Config) ->
     case lists:keyfind(Key, 1, Config) of
         {Key, V} -> V;