Home | History | Annotate | Download | only in system 
      1 # Copyright (C) 2011 Google Inc. All rights reserved.
      2 #
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #     * Redistributions of source code must retain the above copyright
      8 # notice, this list of conditions and the following disclaimer.
      9 #     * Redistributions in binary form must reproduce the above
     10 # copyright notice, this list of conditions and the following disclaimer
     11 # in the documentation and/or other materials provided with the
     12 # distribution.
     13 #     * Neither the name of Google Inc. nor the names of its
     14 # contributors may be used to endorse or promote products derived from
     15 # this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 import sys
     30 import unittest
     31 
     32 from webkitpy.common.system import outputcapture
     33 from webkitpy.common.system import stack_utils
     34 
     35 
     36 def current_thread_id():
     37     thread_id, _ = sys._current_frames().items()[0]
     38     return thread_id
     39 
     40 
     41 class Test(unittest.TestCase):
     42     def test_find_thread_stack_found(self):
     43         thread_id = current_thread_id()
     44         found_stack = stack_utils._find_thread_stack(thread_id)
     45         self.assertNotEqual(found_stack, None)
     46 
     47     def test_find_thread_stack_not_found(self):
     48         found_stack = stack_utils._find_thread_stack(0)
     49         self.assertEqual(found_stack, None)
     50 
     51     def test_log_thread_state(self):
     52         msgs = []
     53 
     54         def logger(msg):
     55             msgs.append(msg)
     56 
     57         thread_id = current_thread_id()
     58         stack_utils.log_thread_state(logger, "test-thread", thread_id,
     59                                      "is tested")
     60         self.assertTrue(msgs)
     61 
     62     def test_log_traceback(self):
     63         msgs = []
     64 
     65         def logger(msg):
     66             msgs.append(msg)
     67 
     68         try:
     69             raise ValueError
     70         except:
     71             stack_utils.log_traceback(logger, sys.exc_info()[2])
     72         self.assertTrue(msgs)
     73 
     74 
     75 if __name__ == '__main__':
     76     unittest.main()
     77