Setup logging during testing.

tests/test_arduino.py

@@ -1,6 +1,10 @@
+import logging
 import unittest
 
 
+logging.basicConfig(level=logging.DEBUG)
+
+
 class MockSerial(object):
 
     def __init__(self, baud, port, timeout=None):

tests/test_main.py

@@ -1,3 +1,4 @@
+import logging
 import unittest
 import time
 
@@ -11,6 +12,9 @@ should at least be maintained here.
 """
 
 
+logging.basicConfig(level=logging.DEBUG)
+
+
 class TestBasics(unittest.TestCase):
 
     def test_find(self):