Fix: test: handle env variables undefined
[lttng-tools.git] / tests / regression / ust / ust-dl / test_ust-dl.py
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1#!/usr/bin/env python3
2#
3# Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4# Copyright (C) - 2015 Antoine Busque <abusque@efficios.com>
5#
6# This program is free software; you can redistribute it and/or modify it
7# under the terms of the GNU General Public License, version 2 only, as
8# published by the Free Software Foundation.
9#
10# This program is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13# more details.
14#
15# You should have received a copy of the GNU General Public License along with
16# this program; if not, write to the Free Software Foundation, Inc., 51
17# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18
19import os
20import subprocess
21import re
22import shutil
23import sys
24
25test_path = os.path.dirname(os.path.abspath(__file__)) + "/"
26test_utils_path = test_path
27for i in range(4):
28 test_utils_path = os.path.dirname(test_utils_path)
29test_utils_path = test_utils_path + "/utils"
30sys.path.append(test_utils_path)
31from test_utils import *
32
33
34NR_TESTS = 6
35current_test = 1
36print("1..{0}".format(NR_TESTS))
37
38# Check if a sessiond is running... bail out if none found.
39if session_daemon_alive() == 0:
40 bail("""No sessiond running. Please make sure you are running this test
41 with the "run" shell script and verify that the lttng tools are
42 properly installed.""")
43
44session_info = create_session()
45enable_ust_tracepoint_event(session_info, "*")
46start_session(session_info)
47
48test_env = os.environ.copy()
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49test_env["LD_PRELOAD"] = test_env.get("LD_PRELOAD", "") + ":liblttng-ust-dl.so"
50test_env["LD_LIBRARY_PATH"] = test_env.get("LD_LIBRARY_PATH", "") + ":" + test_path
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51test_process = subprocess.Popen(test_path + "prog",
52 stdout=subprocess.PIPE, stderr=subprocess.PIPE,
53 env=test_env)
54
55if sys.version_info >= (3, 3):
56 try:
57 test_process.wait(5)
58 except subprocess.TimeoutExpired:
59 test_process.kill()
60 bail("Failed to run ust-dl test application.", session_info)
61else:
62 test_process.wait()
63
64print_test_result(test_process.returncode == 0, current_test, "Test application exited normally")
65current_test += 1
66
67stop_session(session_info)
68
69# Check for dl events in the resulting trace
70try:
71 babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
72except FileNotFoundError:
73 bail("Could not open babeltrace. Please make sure it is installed.", session_info)
74
75dlopen_event_found = False
76build_id_event_found = False
77debug_link_event_found = False
78dlclose_event_found = False
79
80for event_line in babeltrace_process.stdout:
81 # Let babeltrace finish to get the return code
82 if dlopen_event_found and build_id_event_found and \
83 debug_link_event_found and dlclose_event_found:
84 continue
85
86 event_line = event_line.decode('utf-8').replace("\n", "")
87 if re.search(r".*lttng_ust_dl:dlopen.*", event_line) is not None:
88 dlopen_event_found = True
89 elif re.search(r".*lttng_ust_dl:build_id.*", event_line) is not None:
90 build_id_event_found = True
91 elif re.search(r".*lttng_ust_dl:debug_link.*", event_line) is not None:
92 debug_link_event_found = True
93 elif re.search(r".*lttng_ust_dl:dlclose.*", event_line) is not None:
94 dlclose_event_found = True
95
96babeltrace_process.wait()
97
98print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
99current_test += 1
100
101print_test_result(dlopen_event_found, current_test, "lttng_ust_dl:dlopen event found in resulting trace")
102current_test += 1
103
104print_test_result(build_id_event_found, current_test, "lttng_ust_dl:build_id event found in resulting trace")
105current_test += 1
106
107print_test_result(debug_link_event_found, current_test, "lttng_ust_dl:debug_link event found in resulting trace")
108current_test += 1
109
110print_test_result(dlclose_event_found, current_test, "lttng_ust_dl:dlclose event found in resulting trace")
111current_test += 1
112
113shutil.rmtree(session_info.tmp_directory)
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