[Python-checkins] IDLE - fix module browser test (#100647)

[terryjreedy]

https://github.com/python/cpython/commit/1f6c87ca7b9351b2e5c5363504796fce0554c9b8
commit: 1f6c87ca7b9351b2e5c5363504796fce0554c9b8
branch: main
author: Terry Jan Reedy <tjreedy at udel.edu>
committer: terryjreedy <tjreedy at udel.edu>
date: 2022-12-31T19:01:44-05:00
summary:

IDLE - fix module browser test (#100647)

files:
M Lib/idlelib/idle_test/test_browser.py

diff --git a/Lib/idlelib/idle_test/test_browser.py b/Lib/idlelib/idle_test/test_browser.py
index 343d50a6e37b..6cfea3888cd6 100644
--- a/Lib/idlelib/idle_test/test_browser.py
+++ b/Lib/idlelib/idle_test/test_browser.py
@@ -170,8 +170,7 @@ def test_ondoubleclick(self, fopen):
 
         with mock.patch('os.path.exists', return_value=True):
             mbt.OnDoubleClick()
-            fopen.assert_called()
-            fopen.called_with(fname)
+            fopen.assert_called_once_with(fname)
 
 
 class ChildBrowserTreeItemTest(unittest.TestCase):