tests/regression/ust/ust-constructor/test_ust_constructor_cpp_static.py

   1 #!/usr/bin/env python3
   2 #
   3 # Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   4 # Copyright (C) 2023 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5 #
   6 # SPDX-License-Identifier: GPL-2.0-only
   7
   8
   9 """
  10 Test instrumentation coverage of C++ constructors and destructors by LTTng-UST
  11 tracepoints with a static archive.
  12
  13 This test successively sets up a session, traces a test application, and then
  14 reads the resulting trace to determine if all the expected events are present.
  15 """
  16
  17 import copy
  18 import pathlib
  19 import sys
  20
  21 # Import in-tree test utils
  22 test_utils_import_path = pathlib.Path(__file__).absolute().parents[3] / "utils"
  23 sys.path.append(str(test_utils_import_path))
  24
  25 import lttngtest
  26 import ust_constructor_common as ust
  27
  28 test = {
  29     "description": "Test user space constructor/destructor instrumentation coverage (C++ w/ static archive)",
  30     "application": "gen-ust-events-constructor/gen-ust-events-constructor-a",
  31     "expected_events": copy.deepcopy(
  32         ust.expected_events_common
  33         + ust.expected_events_common_cpp
  34         + ust.expected_events_tp_a
  35         + ust.expected_events_tp_a_cpp
  36     ),
  37     "skip_if_application_not_present": False,
  38 }
  39
  40 tap = lttngtest.TapGenerator(7 + len(test["expected_events"]))
  41 with lttngtest.test_environment(with_sessiond=True, log=tap.diagnostic) as test_env:
  42     try:
  43         outputlocation = ust.capture_trace(
  44             tap, test_env, test["application"], test["description"]
  45         )
  46     except FileNotFoundError as fne:
  47         tap.diagnostic(fne)
  48         if test["skip_if_application_not_present"]:
  49             tap.skip(
  50                 "Test application '{}' not found".format(test["application"]),
  51                 tap.remaining_test_cases,
  52             )
  53             sys.exit(0)
  54     # Warning: validate_trace mutates test['expected_events']
  55     ust.validate_trace(outputlocation.path, tap, test["expected_events"])
  56
  57
  58 sys.exit(0 if tap.is_successful else 1)