[3.12] gh-108303: Move .whl test files to Lib/test/wheeldata/ (GH-114343) (#114488)

gh-108303: Move `.whl` test files to `Lib/test/wheeldata/` (GH-114343)
(cherry picked from commit ba253a4794)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>

Lib/test/support/__init__.py

@@ -2179,7 +2179,9 @@ def _findwheel(pkgname):
     If set, the wheels are searched for in WHEEL_PKG_DIR (see ensurepip).
     Otherwise, they are searched for in the test directory.
     """
-    wheel_dir = sysconfig.get_config_var('WHEEL_PKG_DIR') or TEST_HOME_DIR
+    wheel_dir = sysconfig.get_config_var('WHEEL_PKG_DIR') or os.path.join(
+        TEST_HOME_DIR, 'wheeldata',
+    )
     filenames = os.listdir(wheel_dir)
     filenames = sorted(filenames, reverse=True)  # approximate "newest" first
     for filename in filenames:

Makefile.pre.in

@@ -2241,6 +2241,7 @@ TESTSUBDIRS=	idlelib/idle_test \
 		test/tokenizedata \
 		test/tracedmodules \
 		test/typinganndata \
+		test/wheeldata \
 		test/xmltestdata \
 		test/xmltestdata/c14n-20 \
 		test/ziptestdata