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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Data Access Monitor Unit Tests
*
* Author: SeongJae Park <sj@kernel.org>
*/
#ifdef CONFIG_DAMON_SYSFS_KUNIT_TEST
#ifndef _DAMON_SYSFS_TEST_H
#define _DAMON_SYSFS_TEST_H
#include <kunit/test.h>
static unsigned int nr_damon_targets(struct damon_ctx *ctx)
{
struct damon_target *t;
unsigned int nr_targets = 0;
damon_for_each_target(t, ctx)
nr_targets++;
return nr_targets;
}
static int __damon_sysfs_test_get_any_pid(int min, int max)
{
struct pid *pid;
int i;
for (i = min; i <= max; i++) {
pid = find_get_pid(i);
if (pid) {
put_pid(pid);
return i;
}
}
return -1;
}
static void damon_sysfs_test_add_targets(struct kunit *test)
{
struct damon_sysfs_targets *sysfs_targets;
struct damon_sysfs_target *sysfs_target;
struct damon_ctx *ctx;
sysfs_targets = damon_sysfs_targets_alloc();
sysfs_targets->nr = 1;
sysfs_targets->targets_arr = kmalloc_array(1,
sizeof(*sysfs_targets->targets_arr), GFP_KERNEL);
sysfs_target = damon_sysfs_target_alloc();
sysfs_target->pid = __damon_sysfs_test_get_any_pid(12, 100);
sysfs_target->regions = damon_sysfs_regions_alloc();
sysfs_targets->targets_arr[0] = sysfs_target;
ctx = damon_new_ctx();
damon_sysfs_add_targets(ctx, sysfs_targets);
KUNIT_EXPECT_EQ(test, 1u, nr_damon_targets(ctx));
sysfs_target->pid = __damon_sysfs_test_get_any_pid(
sysfs_target->pid + 1, 200);
damon_sysfs_add_targets(ctx, sysfs_targets);
KUNIT_EXPECT_EQ(test, 2u, nr_damon_targets(ctx));
damon_destroy_ctx(ctx);
kfree(sysfs_targets->targets_arr);
kfree(sysfs_targets);
kfree(sysfs_target);
}
static struct kunit_case damon_sysfs_test_cases[] = {
KUNIT_CASE(damon_sysfs_test_add_targets),
{},
};
static struct kunit_suite damon_sysfs_test_suite = {
.name = "damon-sysfs",
.test_cases = damon_sysfs_test_cases,
};
kunit_test_suite(damon_sysfs_test_suite);
#endif /* _DAMON_SYSFS_TEST_H */
#endif /* CONFIG_DAMON_SYSFS_KUNIT_TEST */
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