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"""
Test that the lldb driver's batch mode works correctly.
"""
from __future__ import print_function
import use_lldb_suite
import os, time
import lldb
from lldbtest import *
class DriverBatchModeTest (TestBase):
mydir = TestBase.compute_mydir(__file__)
@skipIfRemote # test not remote-ready llvm.org/pr24813
@expectedFlakeyLinux("llvm.org/pr25172")
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
def test_driver_batch_mode(self):
"""Test that the lldb driver's batch mode works correctly."""
self.build()
self.setTearDownCleanup()
self.batch_mode()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Our simple source filename.
self.source = 'main.c'
def expect_string (self, string):
import pexpect
"""This expects for "string", with timeout & EOF being test fails."""
try:
self.child.expect_exact(string)
except pexpect.EOF:
self.fail ("Got EOF waiting for '%s'"%(string))
except pexpect.TIMEOUT:
self.fail ("Timed out waiting for '%s'"%(string))
def batch_mode (self):
import pexpect
exe = os.path.join(os.getcwd(), "a.out")
prompt = "(lldb) "
# First time through, pass CRASH so the process will crash and stop in batch mode.
run_commands = ' -b -o "break set -n main" -o "run" -o "continue" -k "frame var touch_me_not"'
self.child = pexpect.spawn('%s %s %s %s -- CRASH' % (lldbtest_config.lldbExec, self.lldbOption, run_commands, exe))
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
# We should see the "run":
self.expect_string ("run")
# We should have hit the breakpoint & continued:
self.expect_string ("continue")
# The App should have crashed:
self.expect_string("About to crash")
# The -k option should have printed the frame variable once:
self.expect_string ('(char *) touch_me_not')
# Then we should have a live prompt:
self.expect_string (prompt)
self.child.sendline("frame variable touch_me_not")
self.expect_string ('(char *) touch_me_not')
self.deletePexpectChild()
# Now do it again, and see make sure if we don't crash, we quit:
run_commands = ' -b -o "break set -n main" -o "run" -o "continue" '
self.child = pexpect.spawn('%s %s %s %s -- NOCRASH' % (lldbtest_config.lldbExec, self.lldbOption, run_commands, exe))
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
# We should see the "run":
self.expect_string ("run")
# We should have hit the breakpoint & continued:
self.expect_string ("continue")
# The App should have not have crashed:
self.expect_string("Got there on time and it did not crash.")
# Then we should have a live prompt:
self.expect_string ("exited")
index = self.child.expect([pexpect.EOF, pexpect.TIMEOUT])
self.assertTrue(index == 0, "lldb didn't close on successful batch completion.")
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