From e93e3f391720feeaf4047294db5d45413d8110ec Mon Sep 17 00:00:00 2001 From: Jonathan Rajotte Date: Tue, 24 Oct 2017 10:55:18 -0400 Subject: [PATCH] Basic test ust_app_vs_ust_tools --- .../tests/ust_app_vs_ust_tools/__init__.py | 0 .../test_ust_app_vs_ust_tools.py | 153 ++++++++++++++++++ 2 files changed, 153 insertions(+) create mode 100644 lttng_ivc/tests/ust_app_vs_ust_tools/__init__.py create mode 100644 lttng_ivc/tests/ust_app_vs_ust_tools/test_ust_app_vs_ust_tools.py diff --git a/lttng_ivc/tests/ust_app_vs_ust_tools/__init__.py b/lttng_ivc/tests/ust_app_vs_ust_tools/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/lttng_ivc/tests/ust_app_vs_ust_tools/test_ust_app_vs_ust_tools.py b/lttng_ivc/tests/ust_app_vs_ust_tools/test_ust_app_vs_ust_tools.py new file mode 100644 index 0000000..d8dc0c7 --- /dev/null +++ b/lttng_ivc/tests/ust_app_vs_ust_tools/test_ust_app_vs_ust_tools.py @@ -0,0 +1,153 @@ +import pytest +import os +import shutil +import signal +import subprocess + +import lttng_ivc.utils.ProjectFactory as ProjectFactory +import lttng_ivc.utils.utils as utils +import lttng_ivc.utils.runtime as Run +import lttng_ivc.settings as Settings + +""" + +FC: Fully Compatible +BC: Feature of the smallest version number will works. +TU: Tracing unavailable + ++------------------------------------------------------------------------------+ +| LTTng UST control protocol compatibility matrix | +| (between applications and tools linked on LTTng UST and liblttng-ust-ctl) | ++--------------------------+------------+------------+------------+------------+ +| LTTng UST / LTTng Tools | 2.7 (6.0) | 2.8 (6.1) | 2.9 (7.1) | 2.10 (7.2) | ++--------------------------+------------+------------+------------+------------+ +| 2.7 (6.0) | FC | BC | TU | TU | +| 2.8 (6.1) | BC | FC | TU | TU | +| 2.9 (7.1) | TU | TU | FC | BC | +| 2.10 (7.2) | TU | TU | BC | FC | ++--------------------------+------------+------------+------------+------------+ + +Version number of this API is defined in include/lttng/ust-abi.h of lttng-ust project + +""" + +""" +First tuple member: lttng-ust label +Second tuple member: lttng-tool label +Third tuple member: expected scenario +""" + +test_matrix_tracing_available = [ + ("lttng-ust-2.7", "lttng-tools-2.7", True), + ("lttng-ust-2.7", "lttng-tools-2.8", True), + ("lttng-ust-2.7", "lttng-tools-2.9", False), + ("lttng-ust-2.7", "lttng-tools-2.10", False), + ("lttng-ust-2.8", "lttng-tools-2.7", True), + ("lttng-ust-2.8", "lttng-tools-2.8", True), + ("lttng-ust-2.8", "lttng-tools-2.9", False), + ("lttng-ust-2.8", "lttng-tools-2.10", False), + ("lttng-ust-2.9", "lttng-tools-2.7", False), + ("lttng-ust-2.9", "lttng-tools-2.8", False), + ("lttng-ust-2.9", "lttng-tools-2.9", True), + ("lttng-ust-2.9", "lttng-tools-2.10", True), + ("lttng-ust-2.10", "lttng-tools-2.7", False), + ("lttng-ust-2.10", "lttng-tools-2.8", False), + ("lttng-ust-2.10", "lttng-tools-2.9", True), + ("lttng-ust-2.10", "lttng-tools-2.10", True), +] + +# Only consider test case for which tracing is valid +test_matrix_other = [ + ("lttng-ust-2.7", "lttng-tools-2.7", ""), + ("lttng-ust-2.7", "lttng-tools-2.8", ""), + ("lttng-ust-2.7", "lttng-tools-2.9", ""), + ("lttng-ust-2.7", "lttng-tools-2.10", ""), + ("lttng-ust-2.8", "lttng-tools-2.7", ""), + ("lttng-ust-2.8", "lttng-tools-2.8", ""), + ("lttng-ust-2.8", "lttng-tools-2.9", ""), + ("lttng-ust-2.8", "lttng-tools-2.10", ""), + ("lttng-ust-2.9", "lttng-tools-2.7", ""), + ("lttng-ust-2.9", "lttng-tools-2.8", ""), + ("lttng-ust-2.9", "lttng-tools-2.9", ""), + ("lttng-ust-2.9", "lttng-tools-2.10", ""), + ("lttng-ust-2.10", "lttng-tools-2.7", ""), + ("lttng-ust-2.10", "lttng-tools-2.8", ""), + ("lttng-ust-2.10", "lttng-tools-2.9", ""), + ("lttng-ust-2.10", "lttng-tools-2.10", ""), +] + +runtime_matrix_tracing_available = [] + +if not Settings.test_only: + runtime_matrix_tracing_available = test_matrix_tracing_available +else: + for tup in test_matrix_tracing_available: + if (tup[0] in Settings.test_only or tup[1] in + Settings.test_only): + runtime_matrix_tracing_available.append(tup) + + +def lttng_sessiond_ready(): + print("lttng sessiond is ready ! FFS") + +@pytest.mark.parametrize("ust_label,tools_label, should_trace", runtime_matrix_tracing_available) +def test_ust_app_tracing_available(tmpdir, ust_label, tools_label, should_trace): + + nb_events = 100 + + # Prepare environment + ust = ProjectFactory.get_precook(ust_label) + tools = ProjectFactory.get_precook(tools_label) + babeltrace = ProjectFactory.get_precook(Settings.default_babeltrace) + + tools_runtime_path = os.path.join(str(tmpdir), "tools") + ust_runtime_path = os.path.join(str(tmpdir), "ust") + app_path = os.path.join(str(tmpdir), "app") + + with Run.get_runtime(ust_runtime_path) as runtime_app, Run.get_runtime(tools_runtime_path) as runtime_tools: + runtime_tools.add_project(tools) + runtime_tools.add_project(babeltrace) + + runtime_app.add_project(ust) + runtime_app.lttng_home = runtime_tools.lttng_home + + trace_path = os.path.join(runtime_tools.lttng_home, 'trace') + + # Make application using the ust runtime + shutil.copytree(Settings.apps_gen_events_folder, app_path) + runtime_app.run("make V=1", cwd=app_path) + + # Start lttng-sessiond + # TODO: extract to utils function with a runtime as parameter + previous_handler = signal.signal(signal.SIGUSR1, lttng_sessiond_ready) + runtime_tools.spawn_subprocess("lttng-sessiond -vvv -S") + signal.sigtimedwait({signal.SIGUSR1}, 60) + previous_handler = signal.signal(signal.SIGUSR1, previous_handler) + + # Create session using mi to get path and session name + runtime_tools.run('lttng create trace --output={}'.format(trace_path)) + + # TODO: test with event present in listing + + runtime_tools.run('lttng enable-event -u tp:tptest') + runtime_tools.run('lttng start') + + # Run application + cmd = './app {}'.format(nb_events) + runtime_app.run(cmd, cwd=app_path) + + # Stop tracing + runtime_tools.run('lttng destroy -a') + + try: + # Read trace with babeltrace and check for event count via number of line + cmd = 'babeltrace {}'.format(trace_path) + cp_process, cp_out, cp_err = runtime_tools.run(cmd) + assert(utils.line_count(cp_out) == nb_events) + except subprocess.CalledProcessError as e: + # Check if we expected a problem here + if should_trace: + # Something happened + raise e + + -- 2.34.1