Clean up test

src/test/test.ml

@@ -38,8 +38,14 @@ open Core.Std;;
 
 (* A module launching all tests *)
 
+let tests =
+  [
+    Ec_t.alco ; Exec_t.alco ; Edit_t.alco ; Unify_t.alco ; Listrc_t.alco ;
+    Id_parsing_t.alco
+  ]
+;;
+
 let () =
   Alcotest.run "Test suite for the project"
-    (List.concat [ Ec_t.alco ; Exec_t.alco ; Edit_t.alco ; Unify_t.alco ;
-                   Listrc_t.alco ; Id_parsing_t.alco ])
+    (List.concat tests)
 ;;