tests/regression/ust/exit-fast/test_exit-fast.py

   1 #!/usr/bin/env python3
   2 #
   3 # Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License, version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This program is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 # more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # this program; if not, write to the Free Software Foundation, Inc., 51
  16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 import os
  19 import subprocess
  20 import re
  21 import shutil
  22 import sys
  23
  24 test_path = os.path.dirname(os.path.abspath(__file__)) + "/"
  25 test_utils_path = test_path
  26 for i in range(4):
  27     test_utils_path = os.path.dirname(test_utils_path)
  28 test_utils_path = test_utils_path + "/utils"
  29 sys.path.append(test_utils_path)
  30 from test_utils import *
  31
  32
  33 normal_exit_message = "exit-fast tracepoint normal exit"
  34 suicide_exit_message = "exit-fast tracepoint suicide"
  35 NR_TESTS = 5
  36 current_test = 1
  37 print("1..{0}".format(NR_TESTS))
  38
  39 # Check if a sessiond is running... bail out if none found.
  40 if session_daemon_alive() == 0:
  41     bail("No sessiond running. Please make sure you are running this test with the \"run\" shell script and verify that the lttng tools are properly installed.")
  42
  43 session_info = create_session()
  44 enable_ust_tracepoint_event(session_info, "ust_tests_exitfast*")
  45 start_session(session_info)
  46
  47 test_env = os.environ.copy()
  48 test_env["LTTNG_UST_REGISTER_TIMEOUT"] = "-1"
  49
  50 exit_fast_process = subprocess.Popen(test_path + "exit-fast", stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=test_env)
  51
  52 if sys.version_info >= (3, 3):
  53     try:
  54         exit_fast_process.wait(5)
  55     except TimeoutExpired:
  56         exit_fast_process.kill()
  57         bail("Failed to run exit-fast test application.")
  58 else:
  59     exit_fast_process.wait()
  60
  61 print_test_result(exit_fast_process.returncode == 0, current_test, "Test application exited normally")
  62 current_test += 1
  63
  64 exit_fast_process = subprocess.Popen([test_path + "exit-fast", "suicide"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=test_env)
  65
  66 if sys.version_info >= (3, 3):
  67     try:
  68         exit_fast_process.wait(5)
  69     except TimeoutExpired:
  70         exit_fast_process.kill()
  71         bail("Failed to run exit-fast test application in suicide mode.")
  72 else:
  73     exit_fast_process.wait()
  74
  75 stop_session(session_info)
  76
  77 # Check both events (normal exit and suicide messages) are present in the resulting trace
  78 try:
  79     babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  80 except FileNotFoundError:
  81     bail("Could not open babeltrace. Please make sure it is installed.")
  82
  83 event_lines = []
  84 for event_line in babeltrace_process.stdout:
  85     event_line = event_line.decode('utf-8').replace("\n", "")
  86     event_lines.append(event_line)
  87 babeltrace_process.wait()
  88
  89 print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
  90 current_test += 1
  91
  92 if babeltrace_process.returncode != 0:
  93     bail("Unreadable trace; can't proceed with analysis.")
  94
  95 print_test_result(len(event_lines) == 2, current_test, "Correct number of events found in resulting trace")
  96 current_test += 1
  97
  98 if len(event_lines) != 2:
  99     bail("Unexpected number of events found in resulting trace (" + session_info.trace_path + ")." )
 100
 101 match = re.search(r".*message = \"(.*)\"", event_lines[0])
 102 print_test_result(match is not None and match.group(1) == normal_exit_message, current_test,\
 103                       "Tracepoint message generated during normal exit run is present in trace and has the expected value")
 104 current_test += 1
 105
 106 match = re.search(r".*message = \"(.*)\"", event_lines[1])
 107 print_test_result(match is not None and match.group(1) == suicide_exit_message, current_test,\
 108                       "Tracepoint message generated during suicide run is present in trace and has the expected value")
 109 current_test += 1
 110
 111 shutil.rmtree(session_info.tmp_directory)