added basic test structure

tests/test_main.py

@@ -0,0 +1,13 @@
+import unittest
+from Arduino import Arduino
+
+
+class TestConnect(unittest.TestCase):
+
+    def test_find(self):
+        board = Arduino('9600')
+        self.assertIsNotNone(board.port)
+
+
+if __name__ == '__main__':
+    unittest.main()