Skip tests properly (#31308)

* Skip tests properly

* [test_all]

* Add 'reason' as kwarg for skipTest

* [test_all] Fix up

* [test_all]

tests/models/llama/test_modeling_llama.py

@@ -393,7 +393,7 @@ class LlamaModelTest(ModelTesterMixin, GenerationTesterMixin, PipelineTesterMixi
             (self.model_tester.batch_size, self.model_tester.seq_length, self.model_tester.num_labels),
         )
 
-    @unittest.skip("Llama buffers include complex numbers, which breaks this test")
+    @unittest.skip(reason="Llama buffers include complex numbers, which breaks this test")
     def test_save_load_fast_init_from_base(self):
         pass
 
@@ -710,7 +710,7 @@ class LlamaIntegrationTest(unittest.TestCase):
         # `torch==2.2` will throw an error on this test (as in other compilation tests), but torch==2.1.2 and torch>2.2
         # work as intended. See https://github.com/pytorch/pytorch/issues/121943
         if version.parse(torch.__version__) < version.parse("2.3.0"):
-            self.skipTest("This test requires torch >= 2.3 to run.")
+            self.skipTest(reason="This test requires torch >= 2.3 to run.")
 
         NUM_TOKENS_TO_GENERATE = 40
         # Note on `EXPECTED_TEXT_COMPLETION`'s diff: the current value matches the original test if the original test