1 files changed, 16 insertions, 0 deletions
diff --git a/setuptools/_distutils/tests/unix_compat.py b/setuptools/_distutils/tests/unix_compat.py
new file mode 100644
index 00000000..b7718c26
--- /dev/null
+++ b/setuptools/_distutils/tests/unix_compat.py
@@ -0,0 +1,16 @@
+import sys
+import unittest
+
+try:
+    import grp
+    import pwd
+except ImportError:
+    grp = pwd = None
+
+
+UNIX_ID_SUPPORT = grp and pwd
+UID_0_SUPPORT = UNIX_ID_SUPPORT and sys.platform != "cygwin"
+
+require_unix_id = unittest.skipUnless(
+    UNIX_ID_SUPPORT, "Requires grp and pwd support")
+require_uid_0 = unittest.skipUnless(UID_0_SUPPORT, "Requires UID 0 support")