Issue #20113: os.readv() and os.writev() now raise an OSError exception on

error instead of returning -1.

1 files changed, 9 insertions, 0 deletions

diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index b5bfe9433b..d70a0aeaf8 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -1227,6 +1227,11 @@ class TestInvalidFD(unittest.TestCase):
     def test_read(self):
         self.check(os.read, 1)
 
+    @unittest.skipUnless(hasattr(os, 'readv'), 'test needs os.readv()')
+    def test_readv(self):
+        buf = bytearray(10)
+        self.check(os.readv, [buf])
+
     @unittest.skipUnless(hasattr(os, 'tcsetpgrp'), 'test needs os.tcsetpgrp()')
     def test_tcsetpgrpt(self):
         self.check(os.tcsetpgrp, 0)
@@ -1235,6 +1240,10 @@ class TestInvalidFD(unittest.TestCase):
     def test_write(self):
         self.check(os.write, b" ")
 
+    @unittest.skipUnless(hasattr(os, 'writev'), 'test needs os.writev()')
+    def test_writev(self):
+        self.check(os.writev, [b'abc'])
+
 
 class LinkTests(unittest.TestCase):
     def setUp(self):