diff --git a/docs/versions.md b/docs/versions.md
index 2a2cbd0..3c0d756 100644
--- a/docs/versions.md
+++ b/docs/versions.md
@@ -14,6 +14,7 @@ please report any [issues](https://github.com/zx80/flask-tester/issues).
 
 Slightly improve documentation.
 Add `setHook`.
+Add some tests.
 
 ## 4.3 on 2024-08-10
 
diff --git a/tests/app.py b/tests/app.py
index d2698df..6bf7840 100644
--- a/tests/app.py
+++ b/tests/app.py
@@ -39,7 +39,9 @@ def get_admin(user: fsa.CurrentUser):
 def get_hello(lang: fsa.Cookie = "en"):
     return {"lang": lang, "hello": HELLO.get(lang, "Hi")}, 200
 
-# json, pydantic and dataclasses tests
+#
+# further json, pydantic and dataclasses tests
+#
 import model
 
 # FIXME could we drop fsa.jsonify?
diff --git a/tests/test_app.py b/tests/test_app.py
index 33b43ef..092bf94 100644
--- a/tests/test_app.py
+++ b/tests/test_app.py
@@ -351,6 +351,7 @@ def test_client_fixture():
 def test_classes(api):
 
     def thing_eq(ta, tb):
+        ta = model.Thing1(**ta) if isinstance(ta, dict) else ta
         tb = model.Thing1(**tb) if isinstance(tb, dict) else tb
         return ta.tid == tb.tid and ta.name == tb.name and ta.owner == tb.owner
 
@@ -364,17 +365,15 @@ def thing_eq(ta, tb):
     # check all combinations
     for path in ["/t0", "/t1", "/t2", "/t3"]:
         for param in [t0, t1, t2, t3]:
-            for tclass in [model.Thing1, model.Thing2, model.Thing3]:
+            for tclass in [dict, model.Thing1, model.Thing2, model.Thing3]:
                 for method in ["GET", "POST"]:
                     for mode in ["data", "json"]:
                         n +=1
                         parameter = {mode: {"t": param}}
                         res = api.request(method, path, 200, **parameter)
-                        assert res.is_json
-                        json = res.json
-                        assert isinstance(json, dict)
-                        assert thing_eq(tclass(**json), param)
-    assert n == 192
+                        assert res.is_json and isinstance(res.json, dict)
+                        assert thing_eq(tclass(**res.json), param)
+    assert n == 256
 
     # simple types translation
     assert api.get("/t0", 200, json={"t": None}).json is None