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"""
Test lldb logging. This test just makes sure logging doesn't crash, and produces some output.
"""
import os, time, string
import unittest2
import lldb
from lldbtest import *
class LogTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
append_log_file = "lldb-commands-log-append.txt"
truncate_log_file = "lldb-commands-log-truncate.txt"
@classmethod
def classCleanup(cls):
"""Cleanup the test byproducts."""
cls.RemoveTempFile(cls.truncate_log_file)
cls.RemoveTempFile(cls.append_log_file)
def test (self):
self.build()
if self.debug_info == "dsym":
self.command_log_tests ("dsym")
else:
self.command_log_tests ("dwarf")
def command_log_tests (self, type):
exe = os.path.join (os.getcwd(), "a.out")
self.expect("file " + exe,
patterns = [ "Current executable set to .*a.out" ])
log_file = os.path.join (os.getcwd(), "lldb-commands-log-%s-%s-%s.txt" % (type,
os.path.basename(self.getCompiler()),
self.getArchitecture()))
if (os.path.exists (log_file)):
os.remove (log_file)
# By default, Debugger::EnableLog() will set log options to
# PREPEND_THREAD_NAME + OPTION_THREADSAFE. We don't want the
# threadnames here, so we enable just threadsafe (-t).
self.runCmd ("log enable -t -f '%s' lldb commands" % (log_file))
self.runCmd ("command alias bp breakpoint")
self.runCmd ("bp set -n main")
self.runCmd ("bp l")
self.runCmd("log disable lldb")
self.assertTrue (os.path.isfile (log_file))
f = open (log_file)
log_lines = f.readlines()
f.close ()
os.remove (log_file)
self.assertTrue(log_lines > 0, "Something was written to the log file.")
# Check that lldb truncates its log files
@no_debug_info_test
def test_log_truncate (self):
if (os.path.exists (self.truncate_log_file)):
os.remove (self.truncate_log_file)
# put something in our log file
with open(self.truncate_log_file, "w") as f:
for i in range(1, 1000):
f.write("bacon\n")
self.runCmd ("log enable -t -f '%s' lldb commands" % (self.truncate_log_file))
self.runCmd ("help log")
self.runCmd ("log disable lldb")
self.assertTrue (os.path.isfile (self.truncate_log_file))
with open(self.truncate_log_file, "r") as f:
contents = f.read ()
# check that it got removed
self.assertTrue(string.find(contents, "bacon") == -1)
# Check that lldb can append to a log file
@no_debug_info_test
def test_log_append (self):
if (os.path.exists (self.append_log_file)):
os.remove (self.append_log_file)
# put something in our log file
with open(self.append_log_file, "w") as f:
f.write("bacon\n")
self.runCmd ("log enable -t -a -f '%s' lldb commands" % (self.append_log_file))
self.runCmd ("help log")
self.runCmd ("log disable lldb")
self.assertTrue (os.path.isfile (self.append_log_file))
with open(self.append_log_file, "r") as f:
contents = f.read ()
# check that it is still there
self.assertTrue(string.find(contents, "bacon") == 0)
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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