tests/regression/ust/before-after/test_before_after

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
   4 #
   5 # This library is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU Lesser General Public License as published by the Free
   7 # Software Foundation; version 2.1 of the License.
   8 #
   9 # This library is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  12 # details.
  13 #
  14 # You should have received a copy of the GNU Lesser General Public License
  15 # along with this library; if not, write to the Free Software Foundation, Inc.,
  16 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  17 TEST_DESC="UST tracer - Start tracing before and after execution"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 SESSION_NAME="per-session"
  23 EVENT_NAME="ust_gen_nevents:tptest"
  24 NUM_TESTS=16
  25
  26 source $TESTDIR/utils/utils.sh
  27
  28 if [ ! -x "$CURDIR/gen-nevents" ]; then
  29         BAIL_OUT "No UST nevents binary detected."
  30 fi
  31
  32 # MUST set TESTDIR before calling those functions
  33
  34 test_before_apps() {
  35         local out
  36
  37         # BEFORE application is spawned
  38         create_lttng_session $SESSION_NAME $TRACE_PATH
  39         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  40         start_lttng_tracing $SESSION_NAME
  41
  42         ./$CURDIR/gen-nevents $NR_ITER
  43         ok $? "Start application to trace"
  44
  45         stop_lttng_tracing $SESSION_NAME
  46         destroy_lttng_session $SESSION_NAME
  47
  48         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
  49
  50         return $?
  51 }
  52
  53 test_after_apps() {
  54         local out
  55
  56         ./$CURDIR/gen-nevents 100 &
  57         ok $? "Start application to trace"
  58
  59         # BEFORE application is spawned
  60         create_lttng_session $SESSION_NAME $TRACE_PATH
  61         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  62         start_lttng_tracing $SESSION_NAME
  63
  64         # At least hit one event
  65         sleep 2
  66
  67         stop_lttng_tracing $SESSION_NAME
  68         destroy_lttng_session $SESSION_NAME
  69
  70         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
  71         if [ $out -eq 0 ]; then
  72                 fail "Trace validation"
  73                 diag "No event(s) found. We are supposed to have at least one."
  74                 out=1
  75         else
  76                 pass "Trace validation"
  77                 diag "Found $out event(s). Coherent."
  78                 out=0
  79         fi
  80
  81         return $out
  82 }
  83
  84 # MUST set TESTDIR before calling those functions
  85 plan_tests $NUM_TESTS
  86
  87 print_test_banner "$TEST_DESC"
  88
  89 start_lttng_sessiond
  90
  91 diag "Start application BEFORE tracing was started"
  92
  93 TRACE_PATH=$(mktemp -d)
  94
  95 test_before_apps
  96 out=$?
  97 if [ $out -ne 0 ]; then
  98         stop_lttng_sessiond
  99         exit $out
 100 fi
 101
 102 rm -rf $TRACE_PATH
 103
 104 diag "Start application AFTER tracing was started"
 105
 106 TRACE_PATH=$(mktemp -d)
 107
 108 test_after_apps
 109 out=$?
 110 if [ $out -ne 0 ]; then
 111         stop_lttng_sessiond
 112         exit $out
 113 fi
 114
 115 stop_lttng_sessiond
 116
 117 rm -rf $TRACE_PATH