[3.13] gh-120418: Don't assume wheeldata is deleted if `WHEEL_PKG_DIR` is set (GH-120419) (#120432)

gh-120418: Don't assume wheeldata is deleted if `WHEEL_PKG_DIR` is set (GH-120419)

Remove wheeldata from both sides of the `assertEqual`, so that we're
*actually* ignoring it from the test set.

This test is only making assertions about the source tree, no code is
being executed that would do anything different based on the value of
`WHEEL_PKG_DIR`.
(cherry picked from commit 030b452e34bbb0096acacb70a31915b9590c8186)

Co-authored-by: Stefano Rivera <stefano@rivera.za.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/Lib/test/test_tools/test_makefile.py b/Lib/test/test_tools/test_makefile.py
index 48a7c1a..df95e6d 100644
--- a/Lib/test/test_tools/test_makefile.py
+++ b/Lib/test/test_tools/test_makefile.py
@@ -41,7 +41,7 @@ class TestMakefile(unittest.TestCase):
         idle_test = 'idlelib/idle_test'
         self.assertIn(idle_test, test_dirs)
 
-        used = [idle_test]
+        used = set([idle_test])
         for dirpath, dirs, files in os.walk(support.TEST_HOME_DIR):
             dirname = os.path.basename(dirpath)
             # Skip temporary dirs:
@@ -65,13 +65,14 @@ class TestMakefile(unittest.TestCase):
                         "of test directories to install"
                     )
                 )
-                used.append(relpath)
+                used.add(relpath)
 
         # Don't check the wheel dir when Python is built --with-wheel-pkg-dir
         if sysconfig.get_config_var('WHEEL_PKG_DIR'):
             test_dirs.remove('test/wheeldata')
+            used.discard('test/wheeldata')
 
         # Check that there are no extra entries:
         unique_test_dirs = set(test_dirs)
-        self.assertSetEqual(unique_test_dirs, set(used))
+        self.assertSetEqual(unique_test_dirs, used)
         self.assertEqual(len(test_dirs), len(unique_test_dirs))