gh-137589: Zipfile tests: close file objects (GH-138080)

Zipfile tests: close file objects
(cherry picked from commit 5cea843)

Co-authored-by: Rogdham <[email protected]>

Author: Rogdham

Lib/test/test_zipfile/_path/test_path.py

@@ -275,7 +275,8 @@ def test_pathlike_construction(self, alpharep):
         """
         zipfile_ondisk = self.zipfile_ondisk(alpharep)
         pathlike = FakePath(str(zipfile_ondisk))
-        zipfile.Path(pathlike)
+        root = zipfile.Path(pathlike)
+        root.root.close()
 
     @pass_alpharep
     def test_traverse_pathlike(self, alpharep):
@@ -374,6 +375,7 @@ def test_root_on_disk(self, alpharep):
         root = zipfile.Path(self.zipfile_ondisk(alpharep))
         assert root.name == 'alpharep.zip' == root.filename.name
         assert root.stem == 'alpharep' == root.filename.stem
+        root.root.close()
 
     @pass_alpharep
     def test_suffix(self, alpharep):
@@ -575,11 +577,13 @@ def test_inheritance(self, alpharep):
     )
     def test_pickle(self, alpharep, path_type, subpath):
         zipfile_ondisk = path_type(str(self.zipfile_ondisk(alpharep)))
-
-        saved_1 = pickle.dumps(zipfile.Path(zipfile_ondisk, at=subpath))
+        root = zipfile.Path(zipfile_ondisk, at=subpath)
+        saved_1 = pickle.dumps(root)
+        root.root.close()
         restored_1 = pickle.loads(saved_1)
         first, *rest = restored_1.iterdir()
         assert first.read_text(encoding='utf-8').startswith('content of ')
+        restored_1.root.close()
 
     @pass_alpharep
     def test_extract_orig_with_implied_dirs(self, alpharep):
@@ -591,6 +595,7 @@ def test_extract_orig_with_implied_dirs(self, alpharep):
         # wrap the zipfile for its side effect
         zipfile.Path(zf)
         zf.extractall(source_path.parent)
+        zf.close()
 
     @pass_alpharep
     def test_getinfo_missing(self, alpharep):

Lib/test/test_zipfile/test_core.py

@@ -302,26 +302,26 @@ def test_low_compression(self):
                 self.assertEqual(openobj.read(1), b'2')
 
     def test_writestr_compression(self):
-        zipfp = zipfile.ZipFile(TESTFN2, "w")
-        zipfp.writestr("b.txt", "hello world", compress_type=self.compression)
-        info = zipfp.getinfo('b.txt')
-        self.assertEqual(info.compress_type, self.compression)
+        with zipfile.ZipFile(TESTFN2, "w") as zipfp:
+            zipfp.writestr("b.txt", "hello world", compress_type=self.compression)
+            info = zipfp.getinfo('b.txt')
+            self.assertEqual(info.compress_type, self.compression)
 
     def test_writestr_compresslevel(self):
-        zipfp = zipfile.ZipFile(TESTFN2, "w", compresslevel=1)
-        zipfp.writestr("a.txt", "hello world", compress_type=self.compression)
-        zipfp.writestr("b.txt", "hello world", compress_type=self.compression,
-                       compresslevel=2)
+        with zipfile.ZipFile(TESTFN2, "w", compresslevel=1) as zipfp:
+            zipfp.writestr("a.txt", "hello world", compress_type=self.compression)
+            zipfp.writestr("b.txt", "hello world", compress_type=self.compression,
+                           compresslevel=2)
 
-        # Compression level follows the constructor.
-        a_info = zipfp.getinfo('a.txt')
-        self.assertEqual(a_info.compress_type, self.compression)
-        self.assertEqual(a_info.compress_level, 1)
+            # Compression level follows the constructor.
+            a_info = zipfp.getinfo('a.txt')
+            self.assertEqual(a_info.compress_type, self.compression)
+            self.assertEqual(a_info.compress_level, 1)
 
-        # Compression level is overridden.
-        b_info = zipfp.getinfo('b.txt')
-        self.assertEqual(b_info.compress_type, self.compression)
-        self.assertEqual(b_info._compresslevel, 2)
+            # Compression level is overridden.
+            b_info = zipfp.getinfo('b.txt')
+            self.assertEqual(b_info.compress_type, self.compression)
+            self.assertEqual(b_info._compresslevel, 2)
 
     def test_read_return_size(self):
         # Issue #9837: ZipExtFile.read() shouldn't return more bytes
@@ -2255,13 +2255,15 @@ def test_empty_zipfile(self):
             zipf = zipfile.ZipFile(TESTFN, mode="r")
         except zipfile.BadZipFile:
             self.fail("Unable to create empty ZIP file in 'w' mode")
+        zipf.close()
 
         zipf = zipfile.ZipFile(TESTFN, mode="a")
         zipf.close()
         try:
             zipf = zipfile.ZipFile(TESTFN, mode="r")
         except:
             self.fail("Unable to create empty ZIP file in 'a' mode")
+        zipf.close()
 
     def test_open_empty_file(self):
         # Issue 1710703: Check that opening a file with less than 22 bytes