Implement the test for being able to pass dist-info dir

Author: pelson

setuptools/build_meta.py

@@ -417,9 +417,12 @@ def build_wheel(
         config_settings: _ConfigSettings = None,
         metadata_directory: StrPath | None = None,
     ):
+        cmd = ['bdist_wheel']
+        if metadata_directory:
+            cmd.extend(['--dist-info-dir', metadata_directory])
         with suppress_known_deprecation():
             return self._build_with_temp_dir(
-                ['bdist_wheel'],
+                cmd,
                 '.whl',
                 wheel_directory,
                 config_settings,

setuptools/tests/test_bdist_wheel.py

@@ -619,3 +619,25 @@ def _fake_import(name: str, *args, **kwargs):
     monkeypatch.delitem(sys.modules, "setuptools.command.bdist_wheel")
 
     import setuptools.command.bdist_wheel  # noqa: F401
+
+
+def test_dist_info_provided(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(dummy_dist)
+    distinfo = tmp_path / "dummy_dist.dist-info"
+
+    distinfo.mkdir()
+    (distinfo / "METADATA").write_text("name: helloworld", encoding="utf-8")
+
+    # We don't control the metadata. According to PEP-517, "The hook MAY also
+    # create other files inside this directory, and a build frontend MUST
+    # preserve".
+    (distinfo / "FOO").write_text("bar", encoding="utf-8")
+
+    bdist_wheel_cmd(bdist_dir=str(tmp_path), universal=True, dist_info_dir=str(distinfo)).run()
+    expected = {
+        "dummy_dist-1.0.dist-info/FOO",
+        "dummy_dist-1.0.dist-info/RECORD",
+    }
+    with ZipFile("dist/dummy_dist-1.0-py2.py3-none-any.whl") as wf:
+        # Check that all expected files are there.
+        assert set(wf.namelist()).intersection(expected) == expected