Tests: Preemptively fail infinite blocking tests when low on disk space

[lttng-tools.git] / tests / regression / ust / blocking / test_blocking

diff --git a/tests/regression/ust/blocking/test_blocking b/tests/regression/ust/blocking/test_blocking
index abd50d45938ee2625746211bc38291b056d6e170..9fdde5b4fc379e7c56b10445dd75982a18fc6f76 100755 (executable)
--- a/tests/regression/ust/blocking/test_blocking
+++ b/tests/regression/ust/blocking/test_blocking
@@ -19,16 +19,30 @@ EVENT_NAME="tp:tptest"
 
 NUM_TESTS=49
 
-source $TESTDIR/utils/utils.sh
+# shellcheck source=../utils/utils.sh
+source "$TESTDIR/utils/utils.sh"
 
 # MUST set TESTDIR before calling those functions
-# Run app on CPU 0 to ensure we only write in a single ring buffer.
+# Run app on a single CPU to ensure we only write in a single ring buffer.
 function run_app()
 {
-       taskset 0x00000001 $TESTAPP_BIN -i $NUM_EVENT
+       taskset --cpu-list "$(get_any_available_cpu)" $TESTAPP_BIN -i $NUM_EVENT
        ok $? "Application done"
 }
 
+function check_disk_space()
+{
+       local path
+
+       path="${1:?}"
+       kb_free=$(df -k -P "${path}" | tail -n 1 | awk '{ print $4 }')
+       if [ "${kb_free}" -lt "1048576" ] ; then
+               return 1
+       fi
+
+       return 0
+}
+
 function test_ust_implicit_no_blocking()
 {
        NUM_EVENT=5000000
@@ -133,6 +147,10 @@ plan_tests $NUM_TESTS
 
 print_test_banner "$TEST_DESC"
 
+if ! check_disk_space "${TMPDIR:-/tmp}"; then
+       BAIL_OUT "Not enough free space to run blocking tests"
+fi
+
 TESTS=(
        "test_ust_implicit_no_blocking"
        "test_ust_implicit_no_blocking_with_channel_blocking"