[3.6] bpo-30495: IDLE: improve textview with docstrings, PEP8 names, more tests. (GH-2283) (#2496)

Split TextViewer class into ViewWindow, ViewFrame, and TextFrame classes so that instances
of the latter two can be placed with other widgets within a multiframe window.
Patch by Cheryl Sabella.
(cherry picked from commit 42bc8be)

1 files changed, 9 insertions, 14 deletions

diff --git a/Lib/idlelib/idle_test/test_help_about.py b/Lib/idlelib/idle_test/test_help_about.py
index 08c38a5..1f67aad 100644
--- a/Lib/idlelib/idle_test/test_help_about.py
+++ b/Lib/idlelib/idle_test/test_help_about.py
@@ -50,19 +50,17 @@ class LiveDialogTest(unittest.TestCase):
     def test_printer_buttons(self):
         """Test buttons whose commands use printer function."""
         dialog = self.dialog
-        button_sources = [(self.dialog.py_license, license),
-                          (self.dialog.py_copyright, copyright),
-                          (self.dialog.py_credits, credits)]
+        button_sources = [(dialog.py_license, license),
+                          (dialog.py_copyright, copyright),
+                          (dialog.py_credits, credits)]
 
         for button, printer in button_sources:
             printer._Printer__setup()
             button.invoke()
+            get = dialog._current_textview.viewframe.textframe.text.get
+            self.assertEqual(printer._Printer__lines[0], get('1.0', '1.end'))
             self.assertEqual(
-                    printer._Printer__lines[0],
-                    dialog._current_textview.text.get('1.0', '1.end'))
-            self.assertEqual(
-                    printer._Printer__lines[1],
-                    dialog._current_textview.text.get('2.0', '2.end'))
+                    printer._Printer__lines[1], get('2.0', '2.end'))
             dialog._current_textview.destroy()
 
     def test_file_buttons(self):
@@ -75,14 +73,11 @@ class LiveDialogTest(unittest.TestCase):
         for button, filename in button_sources:
             button.invoke()
             fn = findfile(filename, subdir='idlelib')
+            get = dialog._current_textview.viewframe.textframe.text.get
             with open(fn) as f:
-                self.assertEqual(
-                        f.readline().strip(),
-                        dialog._current_textview.text.get('1.0', '1.end'))
+                self.assertEqual(f.readline().strip(), get('1.0', '1.end'))
                 f.readline()
-                self.assertEqual(
-                    f.readline().strip(),
-                    dialog._current_textview.text.get('3.0', '3.end'))
+                self.assertEqual(f.readline().strip(), get('3.0', '3.end'))
             dialog._current_textview.destroy()