--- /dev/null
+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
+
+Note: actual testing is limited by lttng-ust and lttng-tools abi/api.
+
++----------------------------------------------------------------------------------+
+| LTTng UST Python agent protocol vs LTTng session daemon |
++--------------------------+------------+------------+------------+----------------+
+| LTTng UST Java/ LTTng Tools | 2.7 (1.0) | 2.8 (2.0) | 2.9 (2.0) | 2.10 (2.0) |
++--------------------------+------------+------------+------------+----------------+
+| 2.7 | NA | NA | NA | NA |
+| 2.8 (2.0) | TU | FC | BC | BC |
+| 2.9 (2.0) | TU | BC | FC | BC |
+| 2.10 (2.0) | TU | BC | BC | FC |
++--------------------------+------------+------------+------------+----------------+
+
+"""
+
+"""
+First tuple member: lttng-ust label
+Second tuple member: lttng-tool label
+Thirdd 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", False),
+ ("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", False),
+ ("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),
+]
+
+test_matrix_agent_interface = [
+ ("lttng-ust-2.7", "lttng-tools-2.7", "Success"),
+ ("lttng-ust-2.7", "lttng-tools-2.8", "Unsupported protocol"),
+ ("lttng-ust-2.7", "lttng-tools-2.9", "Unsupported protocol"),
+ ("lttng-ust-2.7", "lttng-tools-2.10", "Unsupported protocol"),
+ ("lttng-ust-2.8", "lttng-tools-2.7", "Unsupported protocol"),
+ ("lttng-ust-2.8", "lttng-tools-2.8", "Success"),
+ ("lttng-ust-2.8", "lttng-tools-2.9", "Success"),
+ ("lttng-ust-2.8", "lttng-tools-2.10", "Success"),
+ ("lttng-ust-2.9", "lttng-tools-2.7", "Unsupported protocol"),
+ ("lttng-ust-2.9", "lttng-tools-2.8", "Success"),
+ ("lttng-ust-2.9", "lttng-tools-2.9", "Success"),
+ ("lttng-ust-2.9", "lttng-tools-2.10", "Success"),
+ ("lttng-ust-2.10", "lttng-tools-2.7", "Unsupported protocol"),
+ ("lttng-ust-2.10", "lttng-tools-2.8", "Success"),
+ ("lttng-ust-2.10", "lttng-tools-2.9", "Success"),
+ ("lttng-ust-2.10", "lttng-tools-2.10", "Success"),
+]
+
+runtime_matrix_tracing_available = []
+runtime_matrix_agent_interface = []
+
+if not Settings.test_only:
+ runtime_matrix_tracing_available = test_matrix_tracing_available
+ runtime_matrix_agent_interface = test_matrix_agent_interface
+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)
+ for tup in test_matrix_agent_interface:
+ if (tup[0] in Settings.test_only or tup[1] in
+ Settings.test_only):
+ runtime_matrix_agent_interface.append(tup)
+
+
+@pytest.mark.parametrize("ust_label,tools_label,should_trace", runtime_matrix_tracing_available)
+def test_ust_python_agent_tracing_available(tmpdir, ust_label, tools_label, should_trace):
+
+ nb_iter = 100
+ nb_events = 5 * nb_iter
+
+ # 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')
+
+ # Copy the python app
+ shutil.copytree(Settings.apps_python, app_path)
+
+ # Start lttng-sessiond
+ sessiond = utils.sessiond_spawn(runtime_tools)
+
+ # Create session using mi to get path and session name
+ runtime_tools.run('lttng create trace --output={}'.format(trace_path))
+
+ runtime_tools.run('lttng enable-event -p pello')
+ runtime_tools.run('lttng start')
+
+ # Run application
+ cmd = 'python app.py -i {}'.format(nb_iter)
+ runtime_app.run(cmd, cwd=app_path)
+
+ # Stop tracing
+ runtime_tools.run('lttng destroy -a')
+ cp = runtime_tools.subprocess_terminate(sessiond)
+ if cp.returncode != 0:
+ pytest.fail("Sessiond return code")
+
+ # Read trace with babeltrace and check for event count via number of line
+ cmd = 'babeltrace {}'.format(trace_path)
+ if should_trace:
+ cp_process, cp_out, cp_err = runtime_tools.run(cmd)
+ assert(utils.line_count(cp_out) == nb_events)
+ else:
+ with pytest.raises(subprocess.CalledProcessError):
+ cp_process, cp_out, cp_err = runtime_tools.run(cmd)
+
+@pytest.mark.parametrize("ust_label,tools_label,outcome", runtime_matrix_agent_interface)
+def test_ust_python_agent_interface(tmpdir, ust_label, tools_label, outcome):
+ """
+ Use the agent coming from ust_label, but run app under tools_version runtime using ust agent.
+ """
+
+ nb_iter = 100
+ nb_events = 5 * nb_iter
+
+ # 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_python, app_path)
+
+ # Start lttng-sessiond
+ sessiond = utils.sessiond_spawn(runtime_tools)
+
+ # Create session using mi to get path and session name
+ runtime_tools.run('lttng create trace --output={}'.format(trace_path))
+
+ runtime_tools.run('lttng enable-event -p pello')
+ runtime_tools.run('lttng start')
+
+ # Steal the PYTHONPATH from ust project and force it on the tools
+ # project
+ python_path = ust.special_env_variables['PYTHONPATH']
+ tools.special_env_variables['PYTHONPATH'] = python_path
+
+ # Run application with tools runtime
+ cmd = 'python app.py -i {}'.format(nb_iter)
+ runtime_tools.run(cmd, cwd=app_path)
+
+ # Stop tracing
+ runtime_tools.run('lttng destroy -a')
+ cp = runtime_tools.subprocess_terminate(sessiond)
+ if cp.returncode != 0:
+ pytest.fail("Sessiond return code")
+
+ # Read trace with babeltrace and check for event count via number of line
+ cmd = 'babeltrace {}'.format(trace_path)
+ if outcome == "Success":
+ assert(utils.file_contains(runtime_tools.get_subprocess_stderr_path(sessiond),["New registration for pid"]))
+ cp_process, cp_out, cp_err = runtime_tools.run(cmd)
+ assert(utils.line_count(cp_out) == nb_events)
+ else:
+ if outcome == "Unsupported protocol":
+ assert(not(utils.file_contains(runtime_tools.get_subprocess_stderr_path(sessiond),["New registration for pid"])))
+ cp_process, cp_out, cp_err = runtime_tools.run(cmd)
+ assert(utils.line_count(cp_out) == 0)
projects / deliverable / lttng-ivc.git / blobdiff