lldb/test/expression_command/radar_9531204/TestPrintfAfterUp.py

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

import lldb_shared

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

class Radar9531204TestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    # rdar://problem/9531204
    @expectedFailureWindows("llvm.org/pr21765")
    def test_expr_commands(self):
        """The evaluating printf(...) after break stop and then up a stack frame."""
        self.build()

        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)')