bpo-45436: Fix tkinter tests with Tcl/Tk 8.6.11+ (GH-29077) (GH-29093)

Since v8.6.11, a few configuration options seem to accept an empty value
where they did not previously; particularly the `type` of a `Menu`
widget, and the `compound` of any ttk widget with a label.  Providing an
explicit expected error message to `checkEnumParam` bypasses the check
of an empty value, which no longer raises `TclError`.
(cherry picked from commit 4fe454c6f54b0948af67b53af6c2f35af6377e69)

Co-authored-by: Zachary Ware <zach@python.org>

diff --git a/Lib/tkinter/test/test_tkinter/test_widgets.py b/Lib/tkinter/test/test_tkinter/test_widgets.py
index cbb5d634e3d348b0f631597db894319061dc5e22..e4c155efe77d79e4b974dc40b012dc1bd376f684 100644 (file)
--- a/Lib/tkinter/test/test_tkinter/test_widgets.py
+++ b/Lib/tkinter/test/test_tkinter/test_widgets.py
@@ -1244,8 +1244,11 @@ class MenuTest(AbstractWidgetTest, unittest.TestCase):
 
     def test_configure_type(self):
         widget = self.create()
-        self.checkEnumParam(widget, 'type',
-                'normal', 'tearoff', 'menubar')
+        self.checkEnumParam(
+            widget, 'type',
+            'normal', 'tearoff', 'menubar',
+            errmsg='bad type "{}": must be normal, tearoff, or menubar',
+            )
 
     def test_entryconfigure(self):
         m1 = self.create()

diff --git a/Lib/tkinter/test/test_ttk/test_widgets.py b/Lib/tkinter/test/test_ttk/test_widgets.py
index 1fac83a004a6d0e441c289dcec070120237bb5dd..88a800d05e4cacc8bb3f43797f5ee80c9ecf1fcb 100644 (file)
--- a/Lib/tkinter/test/test_ttk/test_widgets.py
+++ b/Lib/tkinter/test/test_ttk/test_widgets.py
@@ -169,10 +169,13 @@ class AbstractLabelTest(AbstractWidgetTest):
                 errmsg='image "spam" doesn\'t exist')
 
     def test_configure_compound(self):
+        options = 'none text image center top bottom left right'.split()
+        errmsg = (
+            'bad compound "{}": must be'
+            f' {", ".join(options[:-1])}, or {options[-1]}'
+            )
         widget = self.create()
-        self.checkEnumParam(widget, 'compound',
-                'none', 'text', 'image', 'center',
-                'top', 'bottom', 'left', 'right')
+        self.checkEnumParam(widget, 'compound', *options, errmsg=errmsg)
 
     def test_configure_state(self):
         widget = self.create()