import importlib
import unittest


class ExampleImportTests(unittest.TestCase):
    def test_example_scripts_import_without_ml_dependencies(self):
        infer = importlib.import_module("examples.infer_transformers")
        endpoint = importlib.import_module("examples.call_local_endpoint")
        server = importlib.import_module("examples.serve_local_endpoint")

        self.assertEqual(infer.DEFAULT_BASE_MODEL, "Qwen/Qwen2.5-3B-Instruct")
        self.assertEqual(server.DEFAULT_ADAPTER_PATH, ".")
        payload = endpoint.build_payload("Explain delayed neutrons.", model="local", max_tokens=128)
        self.assertEqual(payload["messages"][1]["role"], "user")
        self.assertIn("civil-nuclear", payload["messages"][0]["content"])


if __name__ == "__main__":
    unittest.main()