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This commit adds kunit based unit tests for the core and the virtual address spaces monitoring primitives of DAMON. Link: https://lkml.kernel.org/r/20210716081449.22187-12-sj38.park@gmail.com Signed-off-by: SeongJae Park <sjpark@amazon.de> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Amit Shah <amit@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Hildenbrand <david@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: David Woodhouse <dwmw@amazon.com> Cc: Fan Du <fan.du@intel.com> Cc: Fernand Sieber <sieberf@amazon.com> Cc: Greg Kroah-Hartman <greg@kroah.com> Cc: Greg Thelen <gthelen@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Leonard Foerster <foersleo@amazon.de> Cc: Marco Elver <elver@google.com> Cc: Markus Boehme <markubo@amazon.de> Cc: Maximilian Heyne <mheyne@amazon.de> Cc: Mel Gorman <mgorman@suse.de> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* DAMON Debugfs Interface Unit Tests
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*
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* Author: SeongJae Park <sjpark@amazon.de>
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*/
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#ifdef CONFIG_DAMON_DBGFS_KUNIT_TEST
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#ifndef _DAMON_DBGFS_TEST_H
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#define _DAMON_DBGFS_TEST_H
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#include <kunit/test.h>
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static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
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{
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char *question;
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unsigned long *answers;
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unsigned long expected[] = {12, 35, 46};
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ssize_t nr_integers = 0, i;
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question = "123";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
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KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
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kfree(answers);
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question = "123abc";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
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KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
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kfree(answers);
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question = "a123";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
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kfree(answers);
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question = "12 35";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
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for (i = 0; i < nr_integers; i++)
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KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
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kfree(answers);
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question = "12 35 46";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
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for (i = 0; i < nr_integers; i++)
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KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
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kfree(answers);
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question = "12 35 abc 46";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
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for (i = 0; i < 2; i++)
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KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
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kfree(answers);
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question = "";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
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kfree(answers);
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question = "\n";
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answers = str_to_target_ids(question, strnlen(question, 128),
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&nr_integers);
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KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
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kfree(answers);
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}
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static void damon_dbgfs_test_set_targets(struct kunit *test)
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{
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struct damon_ctx *ctx = dbgfs_new_ctx();
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unsigned long ids[] = {1, 2, 3};
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char buf[64];
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/* Make DAMON consider target id as plain number */
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ctx->primitive.target_valid = NULL;
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ctx->primitive.cleanup = NULL;
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damon_set_targets(ctx, ids, 3);
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sprint_target_ids(ctx, buf, 64);
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KUNIT_EXPECT_STREQ(test, (char *)buf, "1 2 3\n");
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damon_set_targets(ctx, NULL, 0);
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sprint_target_ids(ctx, buf, 64);
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KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
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damon_set_targets(ctx, (unsigned long []){1, 2}, 2);
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sprint_target_ids(ctx, buf, 64);
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KUNIT_EXPECT_STREQ(test, (char *)buf, "1 2\n");
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damon_set_targets(ctx, (unsigned long []){2}, 1);
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sprint_target_ids(ctx, buf, 64);
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KUNIT_EXPECT_STREQ(test, (char *)buf, "2\n");
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damon_set_targets(ctx, NULL, 0);
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sprint_target_ids(ctx, buf, 64);
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KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
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dbgfs_destroy_ctx(ctx);
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}
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static struct kunit_case damon_test_cases[] = {
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KUNIT_CASE(damon_dbgfs_test_str_to_target_ids),
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KUNIT_CASE(damon_dbgfs_test_set_targets),
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{},
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};
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static struct kunit_suite damon_test_suite = {
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.name = "damon-dbgfs",
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.test_cases = damon_test_cases,
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};
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kunit_test_suite(damon_test_suite);
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#endif /* _DAMON_TEST_H */
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#endif /* CONFIG_DAMON_KUNIT_TEST */
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