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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <linux/loadavg.h>
#include "alloc-util.h"
#include "fileio.h"
#include "fs-util.h"
#include "psi-util.h"
#include "tests.h"
static void test_read_mem_pressure(void) {
_cleanup_(unlink_tempfilep) char path[] = "/tmp/pressurereadtestXXXXXX";
ResourcePressure rp;
if (geteuid() != 0)
return (void) log_tests_skipped("not root");
assert_se(mkstemp(path));
assert_se(read_resource_pressure("/verylikelynonexistentpath", PRESSURE_TYPE_SOME, &rp) < 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) < 0);
assert_se(write_string_file(path, "herpdederp\n", WRITE_STRING_FILE_CREATE) == 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) < 0);
/* Pressure file with some invalid values*/
assert_se(write_string_file(path, "some avg10=0.22=55 avg60=0.17=8 avg300=1.11=00 total=58761459\n"
"full avg10=0.23=55 avg60=0.16=8 avg300=1.08=00 total=58464525", WRITE_STRING_FILE_CREATE) == 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) < 0);
/* Same pressure valid values as below but with duplicate avg60 field */
assert_se(write_string_file(path, "some avg10=0.22 avg60=0.17 avg60=0.18 avg300=1.11 total=58761459\n"
"full avg10=0.23 avg60=0.16 avg300=1.08 total=58464525", WRITE_STRING_FILE_CREATE) == 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) < 0);
assert_se(write_string_file(path, "some avg10=0.22 avg60=0.17 avg300=1.11 total=58761459\n"
"full avg10=0.23 avg60=0.16 avg300=1.08 total=58464525", WRITE_STRING_FILE_CREATE) == 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) == 0);
assert_se(LOAD_INT(rp.avg10) == 0);
assert_se(LOAD_FRAC(rp.avg10) == 22);
assert_se(LOAD_INT(rp.avg60) == 0);
assert_se(LOAD_FRAC(rp.avg60) == 17);
assert_se(LOAD_INT(rp.avg300) == 1);
assert_se(LOAD_FRAC(rp.avg300) == 11);
assert_se(rp.total == 58761459);
assert(read_resource_pressure(path, PRESSURE_TYPE_FULL, &rp) == 0);
assert_se(LOAD_INT(rp.avg10) == 0);
assert_se(LOAD_FRAC(rp.avg10) == 23);
assert_se(LOAD_INT(rp.avg60) == 0);
assert_se(LOAD_FRAC(rp.avg60) == 16);
assert_se(LOAD_INT(rp.avg300) == 1);
assert_se(LOAD_FRAC(rp.avg300) == 8);
assert_se(rp.total == 58464525);
/* Pressure file with extra unsupported fields */
assert_se(write_string_file(path, "some avg5=0.55 avg10=0.22 avg60=0.17 avg300=1.11 total=58761459\n"
"full avg10=0.23 avg60=0.16 avg300=1.08 avg600=2.00 total=58464525", WRITE_STRING_FILE_CREATE) == 0);
assert_se(read_resource_pressure(path, PRESSURE_TYPE_SOME, &rp) == 0);
assert_se(LOAD_INT(rp.avg10) == 0);
assert_se(LOAD_FRAC(rp.avg10) == 22);
assert_se(LOAD_INT(rp.avg60) == 0);
assert_se(LOAD_FRAC(rp.avg60) == 17);
assert_se(LOAD_INT(rp.avg300) == 1);
assert_se(LOAD_FRAC(rp.avg300) == 11);
assert_se(rp.total == 58761459);
assert(read_resource_pressure(path, PRESSURE_TYPE_FULL, &rp) == 0);
assert_se(LOAD_INT(rp.avg10) == 0);
assert_se(LOAD_FRAC(rp.avg10) == 23);
assert_se(LOAD_INT(rp.avg60) == 0);
assert_se(LOAD_FRAC(rp.avg60) == 16);
assert_se(LOAD_INT(rp.avg300) == 1);
assert_se(LOAD_FRAC(rp.avg300) == 8);
assert_se(rp.total == 58464525);
}
int main(void) {
test_setup_logging(LOG_DEBUG);
test_read_mem_pressure();
return 0;
}
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