Test: add UST dl helper test

[lttng-tools.git] / tests / regression / ust / ust-dl / test_ust-dl.py

diff --git a/tests/regression/ust/ust-dl/test_ust-dl.py b/tests/regression/ust/ust-dl/test_ust-dl.py
new file mode 100644 (file)
index 0000000..1e5e96b
--- /dev/null
+++ b/tests/regression/ust/ust-dl/test_ust-dl.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+# Copyright (C) - 2015 Antoine Busque <abusque@efficios.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License, version 2 only, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import subprocess
+import re
+import shutil
+import sys
+
+test_path = os.path.dirname(os.path.abspath(__file__)) + "/"
+test_utils_path = test_path
+for i in range(4):
+    test_utils_path = os.path.dirname(test_utils_path)
+test_utils_path = test_utils_path + "/utils"
+sys.path.append(test_utils_path)
+from test_utils import *
+
+
+NR_TESTS = 6
+current_test = 1
+print("1..{0}".format(NR_TESTS))
+
+# Check if a sessiond is running... bail out if none found.
+if session_daemon_alive() == 0:
+    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.""")
+
+session_info = create_session()
+enable_ust_tracepoint_event(session_info, "*")
+start_session(session_info)
+
+test_env = os.environ.copy()
+test_env["LD_PRELOAD"] = "liblttng-ust-dl.so"
+test_env["LD_LIBRARY_PATH"] = test_path + ".libs/"
+test_process = subprocess.Popen(test_path + "prog",
+                                stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                                env=test_env)
+
+if sys.version_info >= (3, 3):
+    try:
+        test_process.wait(5)
+    except subprocess.TimeoutExpired:
+        test_process.kill()
+        bail("Failed to run ust-dl test application.", session_info)
+else:
+    test_process.wait()
+
+print_test_result(test_process.returncode == 0, current_test, "Test application exited normally")
+current_test += 1
+
+stop_session(session_info)
+
+# Check for dl events in the resulting trace
+try:
+    babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+except FileNotFoundError:
+    bail("Could not open babeltrace. Please make sure it is installed.", session_info)
+
+dlopen_event_found = False
+build_id_event_found = False
+debug_link_event_found = False
+dlclose_event_found = False
+
+for event_line in babeltrace_process.stdout:
+    # Let babeltrace finish to get the return code
+    if dlopen_event_found and build_id_event_found and \
+       debug_link_event_found and dlclose_event_found:
+        continue
+
+    event_line = event_line.decode('utf-8').replace("\n", "")
+    if re.search(r".*lttng_ust_dl:dlopen.*", event_line) is not None:
+        dlopen_event_found = True
+    elif re.search(r".*lttng_ust_dl:build_id.*", event_line) is not None:
+        build_id_event_found = True
+    elif re.search(r".*lttng_ust_dl:debug_link.*", event_line) is not None:
+        debug_link_event_found = True
+    elif re.search(r".*lttng_ust_dl:dlclose.*", event_line) is not None:
+        dlclose_event_found = True
+
+babeltrace_process.wait()
+
+print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
+current_test += 1
+
+print_test_result(dlopen_event_found, current_test, "lttng_ust_dl:dlopen event found in resulting trace")
+current_test += 1
+
+print_test_result(build_id_event_found, current_test, "lttng_ust_dl:build_id event found in resulting trace")
+current_test += 1
+
+print_test_result(debug_link_event_found, current_test, "lttng_ust_dl:debug_link event found in resulting trace")
+current_test += 1
+
+print_test_result(dlclose_event_found, current_test, "lttng_ust_dl:dlclose event found in resulting trace")
+current_test += 1
+
+shutil.rmtree(session_info.tmp_directory)