TestStopHookMechanism.py [plain text]
"""
Test lldb target stop-hook mechanism to see whether it fires off correctly .
"""
import os
import unittest2
import lldb
import pexpect
from lldbtest import *
class StopHookMechanismTestCase(TestBase):
mydir = os.path.join("functionalities", "stop-hook")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@dsym_test
def test_with_dsym(self):
"""Test the stop-hook mechanism."""
self.buildDsym()
self.stop_hook_firing()
@dwarf_test
def test_with_dwarf(self):
"""Test the stop-hook mechanism."""
self.buildDwarf()
self.stop_hook_firing()
def setUp(self):
TestBase.setUp(self)
self.begl = line_number('main.cpp', '// Set breakpoint here to test target stop-hook.')
self.endl = line_number('main.cpp', '// End of the line range for which stop-hook is to be run.')
self.correct_step_line = line_number ('main.cpp', '// We should stop here after stepping.')
self.line = line_number('main.cpp', '// Another breakpoint which is outside of the stop-hook range.')
def stop_hook_firing(self):
"""Test the stop-hook mechanism."""
exe = os.path.join(os.getcwd(), "a.out")
prompt = "(lldb) "
add_prompt = "Enter your stop hook command(s). Type 'DONE' to end.\r\n> "
add_prompt1 = "\r\n> "
self.child = pexpect.spawn('%s %s %s' % (self.lldbHere, self.lldbOption, exe))
child = self.child
if self.TraceOn():
child.logfile_read = sys.stdout
child.expect_exact(prompt)
child.sendline('breakpoint set -f main.cpp -l %d' % self.begl)
child.expect_exact(prompt)
child.sendline('breakpoint set -f main.cpp -l %d' % self.line)
child.expect_exact(prompt)
child.sendline('target stop-hook add -f main.cpp -l %d -e %d' % (self.begl, self.endl))
child.expect_exact(add_prompt)
child.sendline('expr ptr')
child.expect_exact(add_prompt1)
child.sendline('DONE')
child.expect_exact(prompt)
child.sendline('target stop-hook list')
child.expect_exact(prompt)
child.sendline('run')
child.expect_exact(prompt)
child.sendline('thread step-over')
child.expect_exact('(void *) $')
child.sendline('frame info')
child.expect_exact('at main.cpp:%d'%self.correct_step_line)
child.sendline('process continue')
child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
child.sendline('thread step-over')
child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
self.expect(child.before, exe=False, matching=False,
substrs = ['(void *) $'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()