Check models used for common tests are small (#24824)

* First models

* Conditional DETR

* Treat DETR models, skip others

* Skip LayoutLMv2 as well

* Fix last tests

tests/test_modeling_common.py

@@ -2705,6 +2705,18 @@ class ModelTesterMixin:
                     else:
                         new_model_without_prefix(input_ids)
 
+    def test_model_is_small(self):
+        # Just a consistency check to make sure we are not running tests on 80M parameter models.
+        config, _ = self.model_tester.prepare_config_and_inputs_for_common()
+        # print(config)
+
+        for model_class in self.all_model_classes:
+            model = model_class(config)
+            num_params = model.num_parameters()
+            assert (
+                num_params < 1000000
+            ), f"{model_class} is too big for the common tests ({num_params})! It should have 200k max."
+
 
 global_rng = random.Random()