gh-54781: Move Lib/tkinter/test/test_ttk/ to Lib/test/test_ttk/ (#94070)

* Move Lib/tkinter/test/test_tkinter/ to Lib/test/test_tkinter/.
* Move Lib/tkinter/test/test_ttk/ to Lib/test/test_ttk/.
* Add Lib/test/test_ttk/__init__.py based on test_ttk_guionly.py.
* Add Lib/test/test_tkinter/__init__.py
* Remove old Lib/test/test_tk.py.
* Remove old Lib/test/test_ttk_guionly.py.
* Add __main__ sub-modules.
* Update imports and update references to rename files.

Author: vstinner

Lib/test/test_tk.py

@@ -0,0 +1,18 @@
+import os.path
+import unittest
+from test import support
+from test.support import import_helper
+
+
+if support.check_sanitizer(address=True, memory=True):
+    raise unittest.SkipTest("Tests involving libX11 can SEGFAULT on ASAN/MSAN builds")
+
+# Skip test if _tkinter wasn't built.
+import_helper.import_module('_tkinter')
+
+# Skip test if tk cannot be initialized.
+support.requires('gui')
+
+
+def load_tests(*args):
+    return support.load_package_tests(os.path.dirname(__file__), *args)

Lib/tkinter/test/README renamed to Lib/test/test_tkinter/README

@@ -0,0 +1,4 @@
+from . import load_tests
+import unittest
+
+unittest.main()

Lib/test/test_tkinter/__init__.py

@@ -1,7 +1,7 @@
 import unittest
 import tkinter
 from test.support import requires, swap_attr
-from tkinter.test.support import AbstractDefaultRootTest, AbstractTkTest
+from test.test_tkinter.support import AbstractDefaultRootTest, AbstractTkTest
 from tkinter import colorchooser
 from tkinter.colorchooser import askcolor
 from tkinter.commondialog import Dialog

Lib/test/test_tkinter/__main__.py

@@ -2,7 +2,7 @@
 import tkinter
 from tkinter import font
 from test.support import requires, gc_collect, ALWAYS_EQ
-from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest
+from test.test_tkinter.support import AbstractTkTest, AbstractDefaultRootTest
 
 requires('gui')
 

Lib/tkinter/test/support.py renamed to Lib/test/test_tkinter/support.py

@@ -4,8 +4,8 @@
 from tkinter import TclError
 from test.support import requires
 
-from tkinter.test.support import pixels_conv
-from tkinter.test.widget_tests import AbstractWidgetTest
+from test.test_tkinter.support import pixels_conv
+from test.test_tkinter.widget_tests import AbstractWidgetTest
 
 requires('gui')
 

Lib/tkinter/test/test_tkinter/test_colorchooser.py renamed to Lib/test/test_tkinter/test_colorchooser.py

@@ -2,7 +2,7 @@
 import tkinter
 from test import support
 from test.support import os_helper
-from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest, requires_tcl
+from test.test_tkinter.support import AbstractTkTest, AbstractDefaultRootTest, requires_tcl
 
 support.requires('gui')