Fix lint errors to enable stricter PyLint rules

webrtc/tools/py_event_log_analyzer/misc_test.py

 #!/usr/bin/env python
 #  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 #  Use of this source code is governed by a BSD-style license
 #  that can be found in the LICENSE file in the root of the source
 #  tree. An additional intellectual property rights grant can be found
 #  in the file PATENTS.  All contributing project authors may
 #  be found in the AUTHORS file in the root of the source tree.
 
 """Run the tests with
 
       python misc_test.py
 or
       python3 misc_test.py
 """
 
 from __future__ import division
 import random
 import unittest
 
 import misc
 
 
 class TestMisc(unittest.TestCase):
   def testUnwrapMod3(self):
     data = [0, 1, 2, 0, -1, -2, -3, -4]
-    unwrapped_3 = misc.unwrap(data, 3)
+    unwrapped_3 = misc.Unwrap(data, 3)
     self.assertEqual([0, 1, 2, 3, 2, 1, 0, -1], unwrapped_3)
 
   def testUnwrapMod4(self):
     data = [0, 1, 2, 0, -1, -2, -3, -4]
-    unwrapped_4 = misc.unwrap(data, 4)
+    unwrapped_4 = misc.Unwrap(data, 4)
     self.assertEqual([0, 1, 2, 0, -1, -2, -3, -4], unwrapped_4)
 
   def testDataShouldNotChangeAfterUnwrap(self):
     data = [0, 1, 2, 0, -1, -2, -3, -4]
-    _ = misc.unwrap(data, 4)
+    _ = misc.Unwrap(data, 4)
 
     self.assertEqual([0, 1, 2, 0, -1, -2, -3, -4], data)
 
   def testRandomlyMultiplesOfModAdded(self):
     # `unwrap` definition says only multiples of mod are added.
     random_data = [random.randint(0, 9) for _ in range(100)]
 
     for mod in range(1, 100):
-      random_data_unwrapped_mod = misc.unwrap(random_data, mod)
+      random_data_unwrapped_mod = misc.Unwrap(random_data, mod)
 
       for (old_a, a) in zip(random_data, random_data_unwrapped_mod):
         self.assertEqual((old_a - a) % mod, 0)
 
   def testRandomlyAgainstInequalityDefinition(self):
     # Data has to satisfy -mod/2 <= difference < mod/2 for every
     # difference between consecutive values after unwrap.
     random_data = [random.randint(0, 9) for _ in range(100)]
 
     for mod in range(1, 100):
-      random_data_unwrapped_mod = misc.unwrap(random_data, mod)
+      random_data_unwrapped_mod = misc.Unwrap(random_data, mod)
 
       for (a, b) in zip(random_data_unwrapped_mod,
                         random_data_unwrapped_mod[1:]):
         self.assertTrue(-mod / 2 <= b - a < mod / 2)
 
   def testRandomlyDataShouldNotChangeAfterUnwrap(self):
     random_data = [random.randint(0, 9) for _ in range(100)]
     random_data_copy = random_data[:]
     for mod in range(1, 100):
-      _ = misc.unwrap(random_data, mod)
+      _ = misc.Unwrap(random_data, mod)
 
       self.assertEqual(random_data, random_data_copy)
 
 if __name__ == "__main__":
   unittest.main()