improve bad int message

Author: djay

src/plone/restapi/deserializer/__init__.py

@@ -44,4 +44,4 @@ def parse_int(data, prop, default):
     try:
         return int(data.get(prop, default))
     except (ValueError, TypeError):
-        raise BadRequest("Invalid %s" % prop)
+        raise BadRequest(f"Invalid {prop}: Not an integer")

src/plone/restapi/tests/test_batching.py

@@ -188,7 +188,11 @@ def test_batching_links_omitted_if_resulset_fits_in_single_batch(self):
     def test_batching_badrequests(self):
         response = self.api_session.get("/collection?b_size=php")
         self.assertEqual(response.status_code, 400)
-        self.assertIn("invalid literal for int()", response.json()["message"])
+        self.assertIn("Invalid b_size", response.json()["message"])
+
+        response = self.api_session.get("/collection?b_size:list=1")
+        self.assertEqual(response.status_code, 400)
+        self.assertIn("Invalid b_size", response.json()["message"])
 
 
 class TestBatchingDXFolders(TestBatchingDXBase):

src/plone/restapi/tests/test_services_navigation.py

@@ -246,4 +246,4 @@ def test_navigation_badrequests(self):
         )
 
         self.assertEqual(response.status_code, 400)
-        self.assertIn("invalid literal for int()", response.json()["message"])
+        self.assertIn("Invalid expand.navigation.depth", response.json()["message"])