add test for issue #26. Thanks to Cyril Bay for the bug report.

greentest/test__socket_close.py

+import gevent
+from gevent import socket
+import greentest
+
+# XXX also test: send, sendall, recvfrom, recvfrom_into, sendto
+
+class Test(greentest.TestCase):
+
+    def setUp(self):
+        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.sock.connect(('www.google.com', 80))
+
+    def tearDown(self):
+        self.sock.close()
+
+    def test_recv_closed(self):
+        receiver = gevent.spawn(self.sock.recv, 25)
+        gevent.sleep(0.001)
+        self.sock.close()
+        receiver.join(timeout=0.001)
+        assert receiver.ready(), receiver
+        self.assertEqual(receiver.value, '')
+
+    def test_recv_twice(self):
+        receiver = gevent.spawn(self.sock.recv, 25)
+        gevent.sleep(0.001)
+        self.assertRaises(AssertionError, self.sock.recv, 25)
+        self.assertRaises(AssertionError, self.sock.recv, 25)
+        receiver.kill()
+
+
+if __name__ == '__main__':
+    greentest.main()