Fix using deprecated virtualenv option --wheel (#3528)

Co-authored-by: Bernát Gábor <[email protected]>
Co-authored-by: Bernát Gábor <[email protected]>

Author: robsdedude

pyproject.toml

@@ -60,7 +60,7 @@ dependencies = [
   "pyproject-api>=1.8",
   "tomli>=2.2.1; python_version<'3.11'",
   "typing-extensions>=4.12.2; python_version<'3.11'",
-  "virtualenv>=20.29.1",
+  "virtualenv>=20.31",
 ]
 optional-dependencies.test = [
   "devpi-process>=1.0.2",

src/tox/pytest.py

@@ -281,7 +281,8 @@ def our_setup_state(value: Sequence[str]) -> State:
                 m.setenv("VIRTUALENV_SYMLINK_APP_DATA", "1")
                 m.setenv("VIRTUALENV_SYMLINKS", "1")
                 m.setenv("VIRTUALENV_PIP", "embed")
-                m.setenv("VIRTUALENV_WHEEL", "embed")
+                if sys.version_info[:2] < (3, 9):
+                    m.setenv("VIRTUALENV_WHEEL", "embed")
                 m.setenv("VIRTUALENV_SETUPTOOLS", "embed")
                 try:
                     tox_run(args)

tests/session/cmd/test_sequential.py

@@ -114,7 +114,9 @@ def test_result_json_sequential(
     py_test = get_cmd_exit_run_id(log_report, "py", "test")
     assert py_test == [(1, "commands[0]"), (0, "commands[1]")]
     packaging_installed = log_report["testenvs"]["py"].pop("installed_packages")
-    expected_pkg = {"pip", "setuptools", "wheel", "a"}
+    expected_pkg = {"pip", "setuptools", "a"}
+    if sys.version_info[0:2] == (3, 8):
+        expected_pkg.add("wheel")
     assert {i[: i.find("==")] if "@" not in i else "a" for i in packaging_installed} == expected_pkg
     install_package = log_report["testenvs"]["py"].pop("installpkg")
     assert re.match(r"^[a-fA-F0-9]{64}$", install_package.pop("sha256"))