1 files changed, 16 insertions, 0 deletions
diff --git a/setuptools/tests/fixtures.py b/setuptools/tests/fixtures.py
new file mode 100644
index 00000000..6b0e53f3
--- /dev/null
+++ b/setuptools/tests/fixtures.py
@@ -0,0 +1,16 @@
+import mock
+import pytest
+
+from . import contexts
+
+@pytest.yield_fixture
+def user_override():
+    """
+    Override site.USER_BASE and site.USER_SITE with temporary directories in
+    a context.
+    """
+    with contexts.tempdir() as user_base:
+        with mock.patch('site.USER_BASE', user_base):
+            with contexts.tempdir() as user_site:
+                with mock.patch('site.USER_SITE', user_site):
+                    yield