use pytest's tmp_path

tests/test_pip_compat.py

@@ -12,21 +12,18 @@
 from .constants import PACKAGES_RELATIVE_PATH
 
 
-def test_parse_requirements_preserve_editable_relative_path(repository):
+def test_parse_requirements_preserve_editable_relative_path(tmp_path, repository):
     test_package_path = str(
         PurePosixPath(Path(PACKAGES_RELATIVE_PATH)) / "small_fake_a"
     )
+    requirements_in_path = str(tmp_path / "requirements.in")
 
-    infile = tempfile.NamedTemporaryFile("w", delete=False)
-    try:
+    with open(requirements_in_path, 'w') as infile:
         infile.write(f"-e {test_package_path}")
-        infile.close()
 
-        [install_requirement] = parse_requirements(
-            infile.name, session=repository.session
-        )
-    finally:
-        os.unlink(infile.name)
+    [install_requirement] = parse_requirements(
+        requirements_in_path, session=repository.session
+    )
 
     assert install_requirement.link.url == test_package_path
     assert install_requirement.link.file_path == test_package_path