Add pathlib.Path support to test WheelBuilder

tests/lib/wheel.py

@@ -2,6 +2,7 @@
 """
 import csv
 import itertools
+import pathlib
 from base64 import urlsafe_b64encode
 from collections import namedtuple
 from copy import deepcopy
@@ -252,23 +253,23 @@ def __init__(self, name: str, files: Iterable[File]) -> None:
         self._name = name
         self._files = files
 
-    def save_to_dir(self, path: Union[Path, str]) -> str:
+    def save_to_dir(self, path: Union[Path, pathlib.Path, str]) -> str:
         """Generate wheel file with correct name and save into the provided
         directory.
 
         :returns the wheel file path
         """
-        p = Path(path) / self._name
+        p = pathlib.Path(path) / self._name
         p.write_bytes(self.as_bytes())
         return str(p)
 
-    def save_to(self, path: Union[Path, str]) -> str:
+    def save_to(self, path: Union[Path, pathlib.Path, str]) -> str:
         """Generate wheel file, saving to the provided path. Any parent
         directories must already exist.
 
         :returns the wheel file path
         """
-        path = Path(path)
+        path = pathlib.Path(path)
         path.write_bytes(self.as_bytes())
         return str(path)
 

tests/unit/metadata/test_metadata.py

@@ -1,4 +1,5 @@
 import logging
+from pathlib import Path
 from typing import cast
 from unittest import mock
 
@@ -8,7 +9,6 @@
 from pip._internal.metadata import BaseDistribution, get_wheel_distribution
 from pip._internal.metadata.base import FilesystemWheel
 from pip._internal.models.direct_url import DIRECT_URL_METADATA_NAME, ArchiveInfo
-from tests.lib.path import Path
 from tests.lib.wheel import make_wheel
 
 
@@ -60,13 +60,13 @@ class FakeDistribution(BaseDistribution):
     assert isinstance(direct_url.info, ArchiveInfo)
 
 
-def test_json_metadata(tmpdir: Path) -> None:
+def test_json_metadata(tmp_path: Path) -> None:
     """Basic test of BaseDistribution json_metadata.
 
     More tests are available in the original pkg_metadata project where this
     function comes from, and which we may vendor in the future.
     """
-    wheel_path = make_wheel(name="pkga", version="1.0.1").save_to_dir(tmpdir)
+    wheel_path = make_wheel(name="pkga", version="1.0.1").save_to_dir(tmp_path)
     wheel = FilesystemWheel(wheel_path)
     dist = get_wheel_distribution(wheel, "pkga")
     json_metadata = dist.json_metadata