lttng_ivc/tests/consumerd_vs_sessiond/test_consumerd_vs_sessiond.py

   1 import pytest
   2 import subprocess
   3 import platform
   4 import shutil
   5 import os
   6
   7 import lttng_ivc.utils.ProjectFactory as ProjectFactory
   8 import lttng_ivc.utils.utils as utils
   9 import lttng_ivc.utils.runtime as Run
  10 import lttng_ivc.settings as Settings
  11
  12 """
  13 FC: Fully Compatible
  14 I: Incompatible
  15
  16 +------------------------------------------------------------------------------+
  17 |                 LTTng consumer daemon vs LTTng session daemon                |
  18 +--------------------------+------------+------------+------------+------------+
  19 | Consumerd/Sessiond       | 2.7        | 2.8        | 2.9        | 2.10       |
  20 +--------------------------+------------+------------+------------+------------+
  21 | 2.7                      | FC         | I          | I          | I          |
  22 | 2.8                      | I          | FC         | I          | I          |
  23 | 2.9                      | I          | I          | FC         | I          |
  24 | 2.10                     | I          | I          | I          | FC         |
  25 +--------------------------+------------+------------+------------+------------+
  26
  27 """
  28
  29 test_matrix_consumerd = [
  30     ("lttng-tools-2.7",  "lttng-tools-2.7",   True),
  31     ("lttng-tools-2.7",  "lttng-tools-2.8",   False),
  32     ("lttng-tools-2.7",  "lttng-tools-2.9",   False),
  33     ("lttng-tools-2.7",  "lttng-tools-2.10",  False),
  34     ("lttng-tools-2.8",  "lttng-tools-2.7",   False),
  35     ("lttng-tools-2.8",  "lttng-tools-2.8",   True),
  36     ("lttng-tools-2.8",  "lttng-tools-2.9",   True),
  37     ("lttng-tools-2.8",  "lttng-tools-2.10",  False),
  38     ("lttng-tools-2.9",  "lttng-tools-2.7",   False),
  39     ("lttng-tools-2.9",  "lttng-tools-2.8",   True),
  40     ("lttng-tools-2.9",  "lttng-tools-2.9",   True),
  41     ("lttng-tools-2.9",  "lttng-tools-2.10",  False),
  42     ("lttng-tools-2.10",  "lttng-tools-2.7",  False),
  43     ("lttng-tools-2.10",  "lttng-tools-2.8",  False),
  44     ("lttng-tools-2.10",  "lttng-tools-2.9",  False),
  45     ("lttng-tools-2.10",  "lttng-tools-2.10", True),
  46 ]
  47
  48 runtime_matrix_consumerd = []
  49
  50 if not Settings.test_only:
  51     runtime_matrix_consumerd = test_matrix_consumerd
  52 else:
  53     for tup in test_matrix_consumerd:
  54         if (tup[0] in Settings.test_only or tup[1] in
  55                 Settings.test_only):
  56             runtime_matrix_consumerd.append(tup)
  57
  58
  59 @pytest.mark.parametrize("consumerd_l,tools_l,should_work", runtime_matrix_consumerd)
  60 def test_consumerd_vs_sessiond(tmpdir, consumerd_l, tools_l, should_work):
  61     """
  62     Scenario:
  63         Point a lttng-tools to a consumerd of another version and see what
  64         happen. We do not expect anything good to come out of this since for
  65         now lttng-tools(2.10) no versioning exist between sessiond and
  66         consumerd.
  67     """
  68
  69     nb_event = 100;
  70
  71     consumerd = ProjectFactory.get_precook(consumerd_l)
  72     tools = ProjectFactory.get_precook(tools_l)
  73     babeltrace = ProjectFactory.get_precook(Settings.default_babeltrace)
  74
  75     app_path = os.path.join(str(tmpdir), "app")
  76
  77     replacement_consumerd = utils.find_file(consumerd.installation_path, "lttng-consumerd")
  78     assert(replacement_consumerd)
  79
  80     c_dict = {"32bit": "--consumerd32-path", "64bit": "--consumerd64-path"}
  81     platform_type = platform.architecture()[0]
  82
  83     sessiond_opt_args = "{}={}".format(c_dict[platform_type], replacement_consumerd)
  84
  85     with Run.get_runtime(str(tmpdir)) as runtime:
  86         runtime.add_project(tools)
  87         runtime.add_project(babeltrace)
  88
  89         shutil.copytree(Settings.apps_gen_events_folder, app_path)
  90         runtime.run("make V=1", cwd=app_path)
  91
  92         utils.sessiond_spawn(runtime, sessiond_opt_args)
  93
  94         # Consumer is only called on channel creation
  95         runtime.run("lttng create")
  96         try:
  97             runtime.run("lttng enable-event -u tp:tptest", timeout=5)
  98             runtime.run("lttng start", timeout=5)
  99
 100             # Run application
 101             cmd = './app {}'.format(100)
 102             runtime.run(cmd, cwd=app_path)
 103
 104             runtime.run("lttng stop", timeout=5)
 105             runtime.run("lttng destroy -a", timeout=5)
 106             cp, cp_out, cp_err = runtime.run("babeltrace {}".format(runtime.lttng_home))
 107             assert(utils.line_count(cp_out) == nb_event)
 108         except (subprocess.CalledProcessError, subprocess.TimeoutExpired) as e:
 109             if should_work:
 110                 raise e
 111             else:
 112                 # Expecting some error
 113                 return
 114         if not should_work:
 115             raise Exception("Supposed to fail")