TestPrintfAfterUp.py   [plain text]

"""
The evaluating printf(...) after break stop and then up a stack frame.
"""

import os, time
import unittest2
import lldb
from lldbtest import *
import lldbutil

class Radar9531204TestCase(TestBase):

    mydir = os.path.join("expression_command", "radar_9531204")

    # rdar://problem/9531204
    def test_expr_commands(self):
        """The evaluating printf(...) after break stop and then up a stack frame."""
        self.buildDefault()

        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)

        lldbutil.run_break_set_by_symbol (self, 'foo', sym_exact=True, num_expected_locations=1)

        self.runCmd("run", RUN_SUCCEEDED)

        self.runCmd("frame variable")

        # This works fine.
        self.runCmd('expression (int)printf("value is: %d.\\n", value);')

        # rdar://problem/9531204
        # "Error dematerializing struct" error when evaluating expressions "up" on the stack
        self.runCmd('up') # frame select -r 1

        self.runCmd("frame variable")

        # This does not currently.
        self.runCmd('expression (int)printf("argc is: %d.\\n", argc)')


if __name__ == '__main__':
    import atexit
    lldb.SBDebugger.Initialize()
    atexit.register(lambda: lldb.SBDebugger.Terminate())
    unittest2.main()