Add platform support (#1888)

Signed-off-by: Bernát Gábor <bgabor8@bloomberg.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/tox_env/python/virtual_env/test_virtualenv_api.py b/tests/tox_env/python/virtual_env/test_virtualenv_api.py
index 1fe07ebc..ae1c906e 100644
--- a/tests/tox_env/python/virtual_env/test_virtualenv_api.py
+++ b/tests/tox_env/python/virtual_env/test_virtualenv_api.py
@@ -1,4 +1,5 @@
 import os
+import sys
 from typing import Tuple
 
 import pytest
@@ -155,3 +156,22 @@ def test_list_dependencies_command(tox_project: ToxProjectCreator, monkeypatch:
     result.assert_success()
     request: ExecuteRequest = execute_calls.call_args[0][3]
     assert request.cmd == ["python", "-m", "pip", "freeze"]
+
+
+@pytest.mark.parametrize("keep", [True, False])
+def test_platform_filter(
+    tox_project: ToxProjectCreator, virtualenv_opt: VirtualEnvOptions, monkeypatch: MonkeyPatch, keep: bool
+) -> None:
+    platform = sys.platform
+    if not keep:
+        platform += "1"
+    ini = f"[testenv]\npackage=skip\nplatform={platform}"
+    proj = tox_project({"tox.ini": ini})
+    result = proj.run("r", "-e", "py")
+    result.assert_success()
+
+    assert result.state.tox_env("py").active is keep
+    if keep:
+        assert "py" in result.out
+    else:
+        assert "py" not in result.out