diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
index 20e9412..b17ff3e 100644
--- a/Lib/test/test_shutil.py
+++ b/Lib/test/test_shutil.py
@@ -732,11 +732,11 @@
                          "disk_usage not available on this platform")
     def test_disk_usage(self):
         usage = shutil.disk_usage(os.getcwd())
-        self.assertTrue(usage.total > 0)
-        self.assertTrue(usage.used > 0)
-        self.assertTrue(usage.free >= 0)
-        self.assertTrue(usage.total >= usage.used)
-        self.assertTrue(usage.total > usage.free)
+        self.assertGreater(usage.total, 0)
+        self.assertGreater(usage.used, 0)
+        self.assertGreaterEqual(usage.free, 0)
+        self.assertGreaterEqual(usage.total, usage.used)
+        self.assertGreater(usage.total, usage.free)
 
 
 class TestMove(unittest.TestCase):