tests/regression/tools/exclusion/test_exclusion

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2012 Christian Babeux <christian.babeux@efficios.com>
   4 #
   5 # SPDX-License-Identifier: GPL-2.0-only
   6 #
   7
   8 TEST_DESC="Event exclusion"
   9
  10 CURDIR=$(dirname $0)/
  11 TESTDIR=$CURDIR/../../..
  12 STATS_BIN="$TESTDIR/utils/babelstats.pl"
  13 SESSION_NAME="test-exclusion"
  14 TESTAPP_PATH="$TESTDIR/utils/testapp"
  15 TESTAPP_NAME="gen-ust-nevents"
  16 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  17 NR_ITER=100
  18 NR_USEC_WAIT=1
  19 NUM_TESTS=178
  20
  21 source $TESTDIR/utils/utils.sh
  22
  23 function enable_ust_lttng_all_event_exclusion()
  24 {
  25         sess_name="$1"
  26         exclusion="$2"
  27
  28         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "tp:*" -s $sess_name -x "$exclusion" > /dev/null
  29 }
  30
  31 function run_apps
  32 {
  33         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
  34         ok $? "Running test application"
  35 }
  36
  37 # Testing for the absence of an event when testing exclusion is tricky. An
  38 # event could be absent because our exclusion mechanism works but also because
  39 # the event was not generate in the first place. This function test the ability
  40 # of our test suite to generate events.
  41 function dry_run
  42 {
  43         trace_path=$(mktemp -d)
  44
  45         # Create session
  46         create_lttng_session_ok $SESSION_NAME $trace_path
  47
  48         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "tp:*" -s $SESSION_NAME > /dev/null
  49         ok $? "Enabling events without exclusion"
  50
  51         # Trace apps
  52         start_lttng_tracing_ok $SESSION_NAME
  53         run_apps
  54         stop_lttng_tracing_ok $SESSION_NAME
  55
  56         nb_events=$(babeltrace $trace_path | wc -l)
  57         if [ "$nb_events" -ne "0" ]; then
  58                 ok 0 "Events were found during the dry run without exclusion"
  59         else
  60                 fail "No events were found during the dry run without exclusion"
  61         fi
  62
  63         rm -rf $trace_path
  64
  65         # Destroy session
  66         destroy_lttng_session_ok $SESSION_NAME
  67 }
  68
  69 function test_exclusion
  70 {
  71         exclusions="$1"
  72         event_name_expected_to_be_missing="$2"
  73         trace_path=$(mktemp -d)
  74
  75         # Create session
  76         create_lttng_session_ok $SESSION_NAME $trace_path
  77
  78         enable_ust_lttng_all_event_exclusion $SESSION_NAME "$exclusions"
  79         ok $? "Enable lttng event with event \"$exclusions\" excluded"
  80
  81         # Trace apps
  82         start_lttng_tracing_ok $SESSION_NAME
  83         run_apps
  84         stop_lttng_tracing_ok $SESSION_NAME
  85
  86         # Destroy session
  87         destroy_lttng_session_ok $SESSION_NAME
  88
  89         stats=`babeltrace $trace_path | $STATS_BIN --tracepoint "$event_name_expected_to_be_missing" | grep -v index 2> /dev/null`
  90         if [ ! -z "$stats" ]; then
  91                 fail "Excluded event \"$event_name_expected_to_be_missing\" was found in trace!"
  92         else
  93                 ok 0 "Validate trace exclusion output"
  94                 rm -rf $trace_path
  95         fi
  96 }
  97
  98 function test_exclusion_fail
  99 {
 100         event_name="$1"
 101         exclusions="$2"
 102
 103         create_lttng_session_ok $SESSION_NAME $trace_path
 104         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "$event_name" -s $sess_name -x "$exclusions" >/dev/null 2>&1
 105         res=$?
 106         destroy_lttng_session_ok $SESSION_NAME
 107
 108         if [ $res -eq 0 ]; then
 109                 fail "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" passes"
 110                 return 1
 111         else
 112                 pass "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" fails"
 113                 return 0
 114         fi
 115 }
 116
 117 plan_tests $NUM_TESTS
 118
 119 print_test_banner "$TEST_DESC"
 120
 121 start_lttng_sessiond
 122
 123 diag "Enable event without exclusion"
 124 dry_run
 125
 126 diag "Enable event with exclusion"
 127 test_exclusion 'tp:tptest2' 'tp:tptest2'
 128 test_exclusion 'tp:tptest3' 'tp:tptest3'
 129 test_exclusion 'tp:tptest*' 'tp:tptest1'
 130 test_exclusion 'tp:tptest*' 'tp:tptest2'
 131 test_exclusion 'tp:tptest*' 'tp:tptest3'
 132 test_exclusion 'tp:tptest*' 'tp:tptest4'
 133 test_exclusion 'tp:tptest*' 'tp:tptest5'
 134 test_exclusion 'tp*tptest*' 'tp:tptest1'
 135 test_exclusion 'tp*tptest*' 'tp:tptest2'
 136 test_exclusion 'tp*tptest*' 'tp:tptest3'
 137 test_exclusion 'tp*tptest*' 'tp:tptest4'
 138 test_exclusion 'tp*tptest*' 'tp:tptest5'
 139 test_exclusion '*test2' 'tp:tptest2'
 140 test_exclusion '*test5' 'tp:tptest5'
 141 test_exclusion '*p*test*' 'tp:tptest1'
 142 test_exclusion '*p*test*' 'tp:tptest2'
 143 test_exclusion '*p*test*' 'tp:tptest3'
 144 test_exclusion '*p***test*' 'tp:tptest4'
 145 test_exclusion '*p*test*' 'tp:tptest5'
 146 test_exclusion '*3' 'tp:tptest3'
 147 test_exclusion 'tp*test3,*2' 'tp:tptest2'
 148 test_exclusion '**tp*test3,*2' 'tp:tptest3'
 149
 150 diag "Cannot use exclusions with non-globbing event name"
 151 test_exclusion_fail "allo" "lol"
 152 test_exclusion_fail "allo" "meow,lol"
 153 test_exclusion_fail "allo" "z*em"
 154
 155 diag "Exclusion name excludes all possible event names"
 156 test_exclusion_fail "allo*" "all*"
 157 test_exclusion_fail "allo*" "ze,all*,yes"
 158
 159 stop_lttng_sessiond