add unit tests, fix build error

Author: Atabey

can/interfaces/pcan/pcan.py

@@ -56,6 +56,7 @@
     PCAN_CHANNEL_FEATURES,
     FEATURE_FD_CAPABLE,
     PCAN_DICT_STATUS,
+    PCAN_BUSOFF_AUTORESET
 )
 
 

test/test_pcan.py

@@ -363,6 +363,16 @@ def get_value_side_effect(handle, param):
             self.bus = can.Bus(bustype="pcan", device_id=dev_id)
             self.assertEqual(expected_result, self.bus.channel_info)
 
+    def test_bus_creation_auto_reset(self):
+        self.bus = can.Bus(bustype="pcan", auto_reset=True)
+        self.assertIsInstance(self.bus, PcanBus)
+        self.MockPCANBasic.assert_called_once()
+
+    def test_auto_reset_init_fault(self):
+        self.mock_pcan.SetValue = Mock(return_value=PCAN_ERROR_INITIALIZE)
+        with self.assertRaises(CanInitializationError):
+            self.bus = can.Bus(bustype="pcan", auto_reset=True)
+
 
 if __name__ == "__main__":
     unittest.main()