diff -r af793c7580f1 Lib/test/test_csv.py
--- a/Lib/test/test_csv.py	Wed Jun 17 10:09:24 2015 -0500
+++ b/Lib/test/test_csv.py	Thu Jun 18 17:16:37 2015 -0500
@@ -278,6 +278,11 @@
                           ['abc,3'], [[]],
                           quoting=csv.QUOTE_NONNUMERIC)
 
+    def test_read_skipinitialspace(self):
+        self._read_test(['no space, space,  spaces,\ttab'],
+                        [['no space', 'space', 'spaces', '\ttab']],
+                        skipinitialspace=True)
+
     def test_read_bigfield(self):
         # This exercises the buffer realloc functionality and field size
         # limits.