1 files changed, 23 insertions, 0 deletions
diff --git a/setuptools/tests/fixtures.py b/setuptools/tests/fixtures.py
new file mode 100644
index 0000000..5204c8d
--- /dev/null
+++ b/setuptools/tests/fixtures.py
@@ -0,0 +1,23 @@
+import pytest
+
+from . import contexts
+
+
+@pytest.yield_fixture
+def user_override(monkeypatch):
+    """
+    Override site.USER_BASE and site.USER_SITE with temporary directories in
+    a context.
+    """
+    with contexts.tempdir() as user_base:
+        monkeypatch.setattr('site.USER_BASE', user_base)
+        with contexts.tempdir() as user_site:
+            monkeypatch.setattr('site.USER_SITE', user_site)
+            with contexts.save_user_site_setting():
+                yield
+
+
+@pytest.yield_fixture
+def tmpdir_cwd(tmpdir):
+    with tmpdir.as_cwd() as orig:
+        yield orig