bpo-24813: IDLE: Add default title to help_about (#2366)

Patch by Cheryl Sabella.

1 files changed, 23 insertions, 0 deletions

diff --git a/Lib/idlelib/idle_test/test_help_about.py b/Lib/idlelib/idle_test/test_help_about.py
index f3ca75c..be1fadd 100644
--- a/Lib/idlelib/idle_test/test_help_about.py
+++ b/Lib/idlelib/idle_test/test_help_about.py
@@ -10,6 +10,7 @@ from idlelib.idle_test.mock_tk import Mbox_func
 from idlelib.help_about import AboutDialog as About
 from idlelib import textview
 import os.path
+from platform import python_version
 
 class LiveDialogTest(unittest.TestCase):
     """Simulate user clicking buttons other than [Close].
@@ -79,6 +80,28 @@ class LiveDialogTest(unittest.TestCase):
             dialog._current_textview.destroy()
 
 
+class DefaultTitleTest(unittest.TestCase):
+    "Test default title."
+
+    @classmethod
+    def setUpClass(cls):
+        requires('gui')
+        cls.root = Tk()
+        cls.root.withdraw()
+        cls.dialog = About(cls.root, _utest=True)
+
+    @classmethod
+    def tearDownClass(cls):
+        del cls.dialog
+        cls.root.update_idletasks()
+        cls.root.destroy()
+        del cls.root
+
+    def test_dialog_title(self):
+        """Test about dialog title"""
+        self.assertEqual(self.dialog.title(), f'About IDLE {python_version()}')
+
+
 class CloseTest(unittest.TestCase):
     """Simulate user clicking [Close] button"""