fix ionice test on windows + update ionice doc

2 files changed, 6 insertions, 4 deletions

diff --git a/docs/index.rst b/docs/index.rst
index 394aeae8..16301958 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1245,7 +1245,8 @@ Process class
       >>>
 
     On Windows only *ioclass* is used and it can be set to ``2`` (normal),
-    ``1`` (low) or ``0`` (very low).
+    ``1`` (low) or ``0`` (very low). Also it returns an integer instead of a
+    named tuple.
 
     Availability: Linux and Windows > Vista
 
diff --git a/psutil/tests/test_contracts.py b/psutil/tests/test_contracts.py
index f44b7a41..d3c0377a 100755
--- a/psutil/tests/test_contracts.py
+++ b/psutil/tests/test_contracts.py
@@ -430,9 +430,10 @@ class TestFetchAllProcesses(unittest.TestCase):
                 self.assertGreaterEqual(field, 0)
 
     def ionice(self, ret, proc):
-        assert is_namedtuple(ret)
-        for field in ret:
-            self.assertIsInstance(field, int)
+        if POSIX:
+            assert is_namedtuple(ret)
+            for field in ret:
+                self.assertIsInstance(field, int)
         if LINUX:
             self.assertGreaterEqual(ret.ioclass, 0)
             self.assertGreaterEqual(ret.value, 0)