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"""
Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
import lldbutil
class DataFormatterRefPtrRecursionTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@skipUnlessDarwin
@dsym_test
def test_with_dsym_and_run_command(self):
"""Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed."""
self.buildDsym()
self.data_formatter_commands()
@dwarf_test
def test_with_dwarf_and_run_command(self):
"""Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed."""
self.buildDwarf()
self.data_formatter_commands()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break at.
self.line = line_number('main.cpp', '// Set break point at this line.')
def data_formatter_commands(self):
"""Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed."""
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_FAILED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
self.expect("frame variable foo", substrs = []);
self.expect("frame variable foo --ptr-depth=1", substrs = ['ID = 1']);
self.expect("frame variable foo --ptr-depth=2", substrs = ['ID = 1']);
self.expect("frame variable foo --ptr-depth=3", substrs = ['ID = 1']);
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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