1"""
2Test the robustness of lldb expression parser.
3"""
4
5import os, time
6import unittest2
7import lldb
8from lldbtest import *
9
10class 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
39if __name__ == '__main__':
40    import atexit
41    lldb.SBDebugger.Initialize()
42    atexit.register(lambda: lldb.SBDebugger.Terminate())
43    unittest2.main()
44