bpo-33975: Avoid small type when running IDLE's htests. (GH-7944)

Import pyshell first in htest to call SetProcessDpiAwareness on Windows
before tkinter.Tk() is called for the htest. Apparently, 'root.destroy()'
undoes a previous 'root = Tk()'. Since IDLE unittests always destroy roots,
a unittest before an htest does not require anything more to work right.
Since part of the purpose of human-viewed tests is to determine that
widgets look right, it is important that they look the same for testing
as when running IDLE.
(cherry picked from commit 3c8043d8fac4c0d05c0ba9e4e555e2f3165f2fe0)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

diff --git a/Lib/idlelib/idle_test/htest.py b/Lib/idlelib/idle_test/htest.py
index 68eae67aff3ec5d8b9941d44c5a13beacc6e1de6..95f627439297cc635235a875151024f3d23d8b8a 100644 (file)
--- a/Lib/idlelib/idle_test/htest.py
+++ b/Lib/idlelib/idle_test/htest.py
@@ -65,6 +65,7 @@ autocomplete_w.AutoCompleteWindow
 outwin.OutputWindow (indirectly being tested with grep test)
 '''
 
+import idlelib.pyshell  # Set Windows DPI awareness before Tk().
 from importlib import import_module
 import tkinter as tk
 from tkinter.ttk import Scrollbar

diff --git a/Misc/NEWS.d/next/IDLE/2018-06-26-22-53-14.bpo-33975.Ow7alv.rst b/Misc/NEWS.d/next/IDLE/2018-06-26-22-53-14.bpo-33975.Ow7alv.rst
new file mode 100644 (file)
index 0000000..fd975bb
--- /dev/null
+++ b/Misc/NEWS.d/next/IDLE/2018-06-26-22-53-14.bpo-33975.Ow7alv.rst
@@ -0,0 +1,3 @@
+Avoid small type when running htests. Since part of the purpose of human-
+viewed tests is to determine that widgets look right, it is important that
+they look the same for testing as when running IDLE.