path: root/mm/damon/tests/core-kunit.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Data Access Monitor Unit Tests
 *
 * Copyright 2019 Amazon.com, Inc. or its affiliates.  All rights reserved.
 *
 * Author: SeongJae Park <sj@kernel.org>
 */

#ifdef CONFIG_DAMON_KUNIT_TEST

#ifndef _DAMON_CORE_TEST_H
#define _DAMON_CORE_TEST_H

#include <kunit/test.h>

static void damon_test_regions(struct kunit *test)
{
	struct damon_region *r;
	struct damon_target *t;

	r = damon_new_region(1, 2);
	if (!r)
		kunit_skip(test, "region alloc fail");
	KUNIT_EXPECT_EQ(test, 1ul, r->ar.start);
	KUNIT_EXPECT_EQ(test, 2ul, r->ar.end);
	KUNIT_EXPECT_EQ(test, 0u, r->nr_accesses);

	t = damon_new_target();
	if (!t) {
		damon_free_region(r);
		kunit_skip(test, "target alloc fail");
	}
	KUNIT_EXPECT_EQ(test, 0u, damon_nr_regions(t));

	damon_add_region(r, t);
	KUNIT_EXPECT_EQ(test, 1u, damon_nr_regions(t));

	damon_destroy_region(r, t);
	KUNIT_EXPECT_EQ(test, 0u, damon_nr_regions(t));

	damon_free_target(t);
}

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 void damon_test_target(struct kunit *test)
{
	struct damon_ctx *c = damon_new_ctx();
	struct damon_target *t;

	if (!c)
		kunit_skip(test, "ctx alloc fail");<