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      1 """
      2 Test the robustness of lldb expression parser.
      3 """
      4 
      5 import os, time
      6 import unittest2
      7 import lldb
      8 from lldbtest import *
      9 
     10 class Radar8638051TestCase(TestBase):
     11 
     12     mydir = os.path.join("expression_command", "radar_8638051")
     13 
     14     def test_expr_commands(self):
     15         """The following expression commands should not crash."""
     16         self.buildDefault()
     17 
     18         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
     19 
     20         self.runCmd("breakpoint set -n c")
     21 
     22         self.runCmd("run", RUN_SUCCEEDED)
     23 
     24         self.expect("expression val",
     25             startstr = "(int) $0 = 1")
     26         # (int) $0 = 1
     27 
     28         self.expect("expression *(&val)",
     29             startstr = "(int) $1 = 1")
     30         # (int) $1 = 1
     31 
     32         # rdar://problem/8638051
     33         # lldb expression command: Could this crash be avoided
     34         self.expect("expression &val",
     35             startstr = "(int *) $2 = ")
     36         # (int *) $2 = 0x....
     37 
     38 
     39 if __name__ == '__main__':
     40     import atexit
     41     lldb.SBDebugger.Initialize()
     42     atexit.register(lambda: lldb.SBDebugger.Terminate())
     43     unittest2.main()
     44