Update api_test.py

Author: yikaiMeta

torchx/runner/test/api_test.py

@@ -105,9 +105,9 @@ def test_validate_invalid_replicas(self, _) -> None:
             with self.assertRaises(ValueError):
                 runner.run(app, scheduler="local_dir")
 
-    @patch("torchx.util.session.uuid")
+    @patch("torchx.util.session.uuid.uuid4")
     def test_session_id(self, uuid_mock: MagicMock, record_mock: MagicMock) -> None:
-        uuid_mock.uuid4.return_value = "test_session_id"
+        uuid_mock.return_value = "test_session_id"
         test_file = self.tmpdir / "test_file"
 
         with self.get_runner() as runner:
@@ -128,15 +128,15 @@ def test_session_id(self, uuid_mock: MagicMock, record_mock: MagicMock) -> None:
             none_throws(runner.wait(app_handle_2, wait_interval=0.1))
 
             self.assertEqual(get_session_id(), "test_session_id")
-            uuid_mock.uuid4.assert_called_once()
+            uuid_mock.assert_called_once()
             record_mock.assert_called()
             for i in range(record_mock.call_count):
                 event = record_mock.call_args_list[i].args[0]
                 self.assertEqual(event.session, "test_session_id")
 
-    @patch("torchx.util.session.uuid")
+    @patch("torchx.util.session.uuid.uuid4")
     def test_run(self, uuid_mock: MagicMock, _) -> None:
-        uuid_mock.uuid4.return_value = "test_session_id"
+        uuid_mock.return_value = "test_session_id"
         test_file = self.tmpdir / "test_file"
 
         with self.get_runner() as runner: