gh-112795: Move the test for ZipFile into the core tests for zipfile. (#116823)

Move the test for ZipFile into the core tests for zipfile.

Author: jaraco

Lib/test/test_zipfile/_path/test_path.py

@@ -577,15 +577,3 @@ def test_getinfo_missing(self, alpharep):
         zipfile.Path(alpharep)
         with self.assertRaises(KeyError):
             alpharep.getinfo('does-not-exist')
-
-    def test_root_folder_in_zipfile(self):
-        """
-        gh-112795: Some tools or self constructed codes will add '/' folder to
-        the zip file, this is a strange behavior, but we should support it.
-        """
-        in_memory_file = io.BytesIO()
-        zf = zipfile.ZipFile(in_memory_file, "w")
-        zf.mkdir('/')
-        zf.writestr('./a.txt', 'aaa')
-        tmpdir = pathlib.Path(self.fixtures.enter_context(temp_dir()))
-        zf.extractall(tmpdir)

Lib/test/test_zipfile/test_core.py

@@ -3033,6 +3033,17 @@ def test_create_directory_with_write(self):
 
             self.assertEqual(set(os.listdir(target)), {"directory", "directory2"})
 
+    def test_root_folder_in_zipfile(self):
+        """
+        gh-112795: Some tools or self constructed codes will add '/' folder to
+        the zip file, this is a strange behavior, but we should support it.
+        """
+        in_memory_file = io.BytesIO()
+        zf = zipfile.ZipFile(in_memory_file, "w")
+        zf.mkdir('/')
+        zf.writestr('./a.txt', 'aaa')
+        zf.extractall(TESTFN2)
+
     def tearDown(self):
         rmtree(TESTFN2)
         if os.path.exists(TESTFN):