""" Test that the lldb driver's batch mode works correctly. """ from __future__ import print_function import os import time import lldb from lldbsuite.test.decorators import * from lldbsuite.test.lldbtest import * from lldbsuite.test import lldbutil class DriverBatchModeTest (TestBase): mydir = TestBase.compute_mydir(__file__) def setUp(self): # Call super's setUp(). TestBase.setUp(self) # Our simple source filename. self.source = 'main.c' self.victim = None 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)) @skipIfRemote # test not remote-ready llvm.org/pr24813 @expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot") @expectedFlakeyLinux("llvm.org/pr25172") @expectedFailureAll( oslist=["windows"], bugnumber="llvm.org/pr22274: need a pexpect replacement for windows") def test_batch_mode_run_crash(self): """Test that the lldb driver's batch mode works correctly.""" self.build() self.setTearDownCleanup() import pexpect exe = self.getBuildArtifact("a.out") prompt = "(lldb) " # 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() @skipIfRemote # test not remote-ready llvm.org/pr24813 @expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot") @expectedFlakeyLinux("llvm.org/pr25172") @expectedFailureAll( oslist=["windows"], bugnumber="llvm.org/pr22274: need a pexpect replacement for windows") def test_batch_mode_run_exit(self): """Test that the lldb driver's batch mode works correctly.""" self.build() self.setTearDownCleanup() import pexpect exe = self.getBuildArtifact("a.out") prompt = "(lldb) " # Now do it again, and 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.") def closeVictim(self): if self.victim is not None: self.victim.close() self.victim = None @skipIfRemote # test not remote-ready llvm.org/pr24813 @expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot") @expectedFlakeyLinux("llvm.org/pr25172") @expectedFailureAll( oslist=["windows"], bugnumber="llvm.org/pr22274: need a pexpect replacement for windows") def test_batch_mode_attach_exit(self): """Test that the lldb driver's batch mode works correctly.""" self.build() self.setTearDownCleanup() import pexpect exe = self.getBuildArtifact("a.out") prompt = "(lldb) " # Finally, start up the process by hand, attach to it, and wait for its completion. # Attach is funny, since it looks like it stops with a signal on most Unixen so # care must be taken not to treat that as a reason to exit batch mode. # Start up the process by hand and wait for it to get to the wait loop. self.victim = pexpect.spawn('%s WAIT' % (exe)) if self.victim is None: self.fail("Could not spawn ", exe, ".") self.addTearDownHook(self.closeVictim) if self.TraceOn(): self.victim.logfile_read = sys.stdout self.victim.expect("PID: ([0-9]+) END") if self.victim.match is None: self.fail("Couldn't get the target PID.") victim_pid = int(self.victim.match.group(1)) self.victim.expect("Waiting") run_commands = ' -b -o "process attach -p %d" -o "breakpoint set --file %s -p \'Stop here to unset keep_waiting\' -N keep_waiting" -o "continue" -o "break delete keep_waiting" -o "expr keep_waiting = 0" -o "continue" ' % ( victim_pid, self.source) self.child = pexpect.spawn( '%s %s %s %s' % (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("attach") self.expect_string(prompt + "continue") self.expect_string(prompt + "continue") # Then we should see the process exit: self.expect_string("Process %d exited with status" % (victim_pid)) victim_index = self.victim.expect([pexpect.EOF, pexpect.TIMEOUT]) self.assertTrue(victim_index == 0, "Victim didn't really exit.") index = self.child.expect([pexpect.EOF, pexpect.TIMEOUT]) self.assertTrue( index == 0, "lldb didn't close on successful batch completion.")