bpo-33855: Still more edits and minimal tests for IDLE (GH-7784)

Part 3 of 3, continuing PR #7689. This covers 14 idlelib modules and their tests,
rpc to zoomheight except for run (already done) and tooltip (being done separately).

1 files changed, 5 insertions, 5 deletions

diff --git a/Lib/idlelib/idle_test/test_undo.py b/Lib/idlelib/idle_test/test_undo.py
index e872927..beb5b58 100644
--- a/Lib/idlelib/idle_test/test_undo.py
+++ b/Lib/idlelib/idle_test/test_undo.py
@@ -1,14 +1,13 @@
-"""Unittest for UndoDelegator in idlelib.undo.py.
+"Test undo, coverage 77%."
+# Only test UndoDelegator so far.
 
-Coverage about 80% (retest).
-"""
+from idlelib.undo import UndoDelegator
+import unittest
 from test.support import requires
 requires('gui')
 
-import unittest
 from unittest.mock import Mock
 from tkinter import Text, Tk
-from idlelib.undo import UndoDelegator
 from idlelib.percolator import Percolator
 
 
@@ -131,5 +130,6 @@ class UndoDelegatorTest(unittest.TestCase):
             text.insert('insert', 'foo')
             self.assertLessEqual(len(self.delegator.undolist), max_undo)
 
+
 if __name__ == '__main__':
     unittest.main(verbosity=2, exit=False)