fix whitespace and styling

tests/test_full.py

@@ -14,6 +14,7 @@ import logging
 logging.basicConfig(level=logging.DEBUG,
                     format='%(asctime)s %(levelname)-12s %(message)s')
 
+
 class Args(object):
     def __init__(self, **kwargs):
         self.__dict__.update(kwargs)
@@ -37,19 +38,24 @@ def run(size, chan):
 
     assert rx_data == tx_data
 
+
 def test_small():
     run(1024, lambda x: x)
 
+
 def test_large():
     run(54321, lambda x: x)
 
+
 def test_attenuation():
     run(5120, lambda x: x * 0.1)
 
+
 def test_low_noise():
     r = np.random.RandomState(seed=0)
     run(5120, lambda x: x + r.normal(size=len(x), scale=0.0001))
 
+
 def test_medium_noise():
     r = np.random.RandomState(seed=0)
     run(5120, lambda x: x + r.normal(size=len(x), scale=0.001))