Do not leave open files behind as this triggers 'ResourceWarning' and leads
these tests to fail.

--- Werkzeug-1.0.1/tests/test_datastructures.py	2020-03-31 19:48:06.000000000 +0200
+++ Werkzeug-1.0.1/tests/test_datastructures.py	2021-11-21 18:19:11.304369878 +0100
@@ -1238,9 +1238,10 @@
     def test_save_to_pathlib_dst(self, tmp_path):
         src = tmp_path / "src.txt"
         src.write_text(u"test")
-        storage = self.storage_class(src.open("rb"))
-        dst = tmp_path / "dst.txt"
-        storage.save(dst)
+        with src.open("rb") as input:
+            storage = self.storage_class(input)
+            dst = tmp_path / "dst.txt"
+            storage.save(dst)
         assert dst.read_text() == "test"
 
     def test_save_to_bytes_io(self):
@@ -1251,11 +1252,12 @@
 
     def test_save_to_file(self, tmp_path):
         path = tmp_path / "file.data"
-        storage = self.storage_class(io.BytesIO(b"one\ntwo"))
-        with path.open("wb") as dst:
-            storage.save(dst)
-        with path.open("rb") as src:
-            assert src.read() == b"one\ntwo"
+        with io.BytesIO(b"one\ntwo") as input:
+            storage = self.storage_class(input)
+            with path.open("wb") as dst:
+                storage.save(dst)
+            with path.open("rb") as src:
+                assert src.read() == b"one\ntwo"
 
 
 @pytest.mark.parametrize("ranges", ([(0, 1), (-5, None)], [(5, None)]))
--- Werkzeug-1.0.1/tests/test_formparser.py	2020-03-31 19:48:06.000000000 +0200
+++ Werkzeug-1.0.1/tests/test_formparser.py	2021-11-21 22:11:43.654622751 +0100
@@ -27,7 +27,7 @@
 from werkzeug.test import create_environ
 from werkzeug.wrappers import Request
 from werkzeug.wrappers import Response
-
+import warnings
 
 @Request.application
 def form_data_consumer(request):
@@ -242,6 +244,9 @@
 
 class TestMultiPart(object):
     def test_basic(self):
+        # Ignore leaked file descriptor of unknown origin.
+        warnings.filterwarnings(action="ignore", message="unclosed", category=ResourceWarning)
+
         resources = join(dirname(__file__), "multipart")
         client = Client(form_data_consumer, Response)
 
ref='/guix/log/gnu/tests?id=d54faf155aeeeb2aceb5cc19f141c2b8d0e0720a'>tests</a>/<a href='/guix/log/gnu/tests/base.scm?id=d54faf155aeeeb2aceb5cc19f141c2b8d0e0720a'>base.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/base.scm?id=d54faf155aeeeb2aceb5cc19f141c2b8d0e0720a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/gnu/tests/base.scm?id=fb32e226ce3d3cd9bf12989850b2dd719266d583'>tests: Use the client 'start-service' procedure.</a><span class='msg-avail'>...<span class='msg-tooltip'>The previous code worked "by chance": 'start' from (shepherd service)
happened to be in scope because the marionette REPL is created by a mere
'primitive-fork', and 'start' happened to kinda work.

* gnu/tests/base.scm (run-basic-test): Use 'start-service' from (gnu
services herd), not 'start' from (shepherd service), which is not
supposed to work.
* gnu/tests/install.scm (run-install): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>