Refactor test class to re-use.

Author: ianjosephwilson

tests/test_arduino.py

@@ -54,7 +54,15 @@ def push_line(self, line, term='\r\n'):
 LSBFIRST = "LSBFIRST"
 
 
-class TestArduino(unittest.TestCase):
+class ArduinoTestCase(unittest.TestCase):
+
+    def setUp(self):
+        from Arduino.arduino import Arduino
+        self.mock_serial = MockSerial(9600, '/dev/ttyACM0')
+        self.board = Arduino(sr=self.mock_serial)
+
+
+class TestArduino(ArduinoTestCase):
 
     def parse_cmd_sr(self, cmd_str):
         assert cmd_str[0] == '@'
@@ -68,11 +76,6 @@ def parse_cmd_sr(self, cmd_str):
         args = args_str.split('%')
         return cmd, args
 
-    def setUp(self):
-        from Arduino.arduino import Arduino
-        self.mock_serial = MockSerial(9600, '/dev/ttyACM0')
-        self.board = Arduino(sr=self.mock_serial)
-
     def test_close(self):
         self.board.close()
         # Call again, should skip calling close.