Merge with 10.2.1

--HG--
branch : feature/issue-229

1 files changed, 24 insertions, 0 deletions

diff --git a/setuptools/tests/fixtures.py b/setuptools/tests/fixtures.py
new file mode 100644
index 00000000..0b1eaf5f
--- /dev/null
+++ b/setuptools/tests/fixtures.py
@@ -0,0 +1,24 @@
+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):
+                    with contexts.save_user_site_setting():
+                        yield
+
+
+@pytest.yield_fixture
+def tmpdir_cwd(tmpdir):
+    with tmpdir.as_cwd() as orig:
+        yield orig