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fbb8ed6682
Add -v flag to prove command to also print the names of tests that succeeded, not only those that failed, to allow easier debugging of the test suite. Also, drop printing the option and value to stdout in check_with_osnoise_options, which was a debugging print that was accidentally left in the final commit, and which would be otherwise now visible in make check output, as stdout is no longer suppressed. Suggested-by: Crystal Wood <crwood@redhat.com> Reviewed-by: Wander Lairson Costa <wander@redhat.com> Link: https://lore.kernel.org/r/20251126144205.331954-6-tglozar@redhat.com Signed-off-by: Tomas Glozar <tglozar@redhat.com>
139 lines
3.4 KiB
Bash
139 lines
3.4 KiB
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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test_begin() {
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# Count tests to allow the test harness to double-check if all were
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# included correctly.
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ctr=0
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[ -z "$RTLA" ] && RTLA="./rtla"
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[ -n "$TEST_COUNT" ] && echo "1..$TEST_COUNT"
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}
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reset_osnoise() {
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# Reset osnoise options to default and remove any dangling instances created
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# by improperly exited rtla runs.
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pushd /sys/kernel/tracing >/dev/null || return 1
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# Remove dangling instances created by previous rtla run
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echo 0 > tracing_thresh
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cd instances
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for i in osnoise_top osnoise_hist timerlat_top timerlat_hist
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do
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[ ! -d "$i" ] && continue
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rmdir "$i"
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done
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# Reset options to default
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# Note: those are copied from the default values of osnoise_data
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# in kernel/trace/trace_osnoise.c
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cd ../osnoise
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echo all > cpus
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echo DEFAULTS > options
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echo 1000000 > period_us
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echo 0 > print_stack
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echo 1000000 > runtime_us
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echo 0 > stop_tracing_total_us
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echo 0 > stop_tracing_us
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echo 1000 > timerlat_period_us
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popd >/dev/null
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}
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check() {
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test_name=$0
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tested_command=$1
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expected_exitcode=${3:-0}
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expected_output=$4
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unexpected_output=$5
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# Simple check: run rtla with given arguments and test exit code.
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# If TEST_COUNT is set, run the test. Otherwise, just count.
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ctr=$(($ctr + 1))
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if [ -n "$TEST_COUNT" ]
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then
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# Reset osnoise options before running test.
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[ "$NO_RESET_OSNOISE" == 1 ] || reset_osnoise
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# Run rtla; in case of failure, include its output as comment
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# in the test results.
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result=$(eval stdbuf -oL $TIMEOUT "$RTLA" $2 2>&1); exitcode=$?
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failbuf=''
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fail=0
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# Test if the results matches if requested
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if [ -n "$expected_output" ] && ! grep -qE "$expected_output" <<< "$result"
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then
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fail=1
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failbuf+=$(printf "# Output match failed: \"%s\"" "$expected_output")
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failbuf+=$'\n'
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fi
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if [ -n "$unexpected_output" ] && grep -qE "$unexpected_output" <<< "$result"
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then
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fail=1
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failbuf+=$(printf "# Output non-match failed: \"%s\"" "$unexpected_output")
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failbuf+=$'\n'
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fi
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if [ $exitcode -eq $expected_exitcode ] && [ $fail -eq 0 ]
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then
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echo "ok $ctr - $1"
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else
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# Add rtla output and exit code as comments in case of failure
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echo "not ok $ctr - $1"
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echo -n "$failbuf"
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echo "$result" | col -b | while read line; do echo "# $line"; done
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printf "#\n# exit code %s\n" $exitcode
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fi
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fi
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}
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check_with_osnoise_options() {
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# Do the same as "check", but with pre-set osnoise options.
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# Note: rtla should reset the osnoise options, this is used to test
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# if it indeed does so.
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# Save original arguments
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arg1=$1
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arg2=$2
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arg3=$3
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# Apply osnoise options (if not dry run)
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if [ -n "$TEST_COUNT" ]
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then
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[ "$NO_RESET_OSNOISE" == 1 ] || reset_osnoise
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shift
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shift
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while shift
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do
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[ "$1" == "" ] && continue
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option=$(echo $1 | cut -d '=' -f 1)
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value=$(echo $1 | cut -d '=' -f 2)
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echo "$value" > "/sys/kernel/tracing/osnoise/$option" || return 1
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done
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fi
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NO_RESET_OSNOISE=1 check "$arg1" "$arg2" "$arg3"
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}
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set_timeout() {
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TIMEOUT="timeout -v -k 15s $1"
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}
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unset_timeout() {
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unset TIMEOUT
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}
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set_no_reset_osnoise() {
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NO_RESET_OSNOISE=1
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}
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unset_no_reset_osnoise() {
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unset NO_RESET_OSNOISE
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}
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test_end() {
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# If running without TEST_COUNT, tests are not actually run, just
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# counted. In that case, re-run the test with the correct count.
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[ -z "$TEST_COUNT" ] && TEST_COUNT=$ctr exec bash $0 || true
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}
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# Avoid any environmental discrepancies
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export LC_ALL=C
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unset_timeout
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