Merge remote branch 'cros/upstream' into tempbranch3

client/common_lib/utils_unittest.py

 #!/usr/bin/python
 
 import os, unittest, StringIO, socket, urllib2, shutil, subprocess, logging
 
 import common
 from autotest_lib.client.common_lib import utils, autotemp
 from autotest_lib.client.common_lib.test_utils import mock
 
 
 class test_read_one_line(unittest.TestCase):
@@ skipping 755 matching lines @@
 
         try:
             result = utils.args_to_dict(['ab-c:DeF', '--SyS=DEf', 'a*=b', 'a*b',
                                          ':VAL', '=VVV', 'WORD'])
             self.assertEqual({}, result)
         finally:
             # Restore level.
             logger.setLevel(saved_level)
 
 
+class test_get_random_port(unittest.TestCase):
+    def do_bind(self, port, socket_type, socket_proto):
+        s = socket.socket(socket.AF_INET, socket_type, socket_proto)
+        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        s.bind(('', port))
+        return s
+
+
+    def test_get_port(self):
+        for _ in xrange(100):
+            p = utils.get_unused_port()
+            s = self.do_bind(p, socket.SOCK_STREAM, socket.IPPROTO_TCP)
+            self.assert_(s.getsockname())
+            s = self.do_bind(p, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
+            self.assert_(s.getsockname())
+
+
 if __name__ == "__main__":
     unittest.main()