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From: SeongJae Park <sjpark@amazon.com>
To: <akpm@linux-foundation.org>
Cc: SeongJae Park <sjpark@amazon.de>, <Jonathan.Cameron@Huawei.com>,
	<aarcange@redhat.com>, <acme@kernel.org>,
	<alexander.shishkin@linux.intel.com>, <amit@kernel.org>,
	<benh@kernel.crashing.org>, <brendan.d.gregg@gmail.com>,
	<brendanhiggins@google.com>, <cai@lca.pw>,
	<colin.king@canonical.com>, <corbet@lwn.net>, <david@redhat.com>,
	<dwmw@amazon.com>, <fan.du@intel.com>, <foersleo@amazon.de>,
	<gthelen@google.com>, <irogers@google.com>, <jolsa@redhat.com>,
	<kirill@shutemov.name>, <mark.rutland@arm.com>, <mgorman@suse.de>,
	<minchan@kernel.org>, <mingo@redhat.com>, <namhyung@kernel.org>,
	<peterz@infradead.org>, <rdunlap@infradead.org>,
	<riel@surriel.com>, <rientjes@google.com>, <rostedt@goodmis.org>,
	<rppt@kernel.org>, <sblbir@amazon.com>, <shakeelb@google.com>,
	<shuah@kernel.org>, <sj38.park@gmail.com>, <snu@amazon.de>,
	<vbabka@suse.cz>, <vdavydov.dev@gmail.com>,
	<yang.shi@linux.alibaba.com>, <ying.huang@intel.com>,
	<zgf574564920@gmail.com>, <linux-damon@amazon.com>,
	<linux-mm@kvack.org>, <linux-doc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [RFC v8 03/10] mm/damon-test: Add more unit tests for 'init_regions'
Date: Mon, 31 Aug 2020 12:47:23 +0200	[thread overview]
Message-ID: <20200831104730.28970-4-sjpark@amazon.com> (raw)
In-Reply-To: <20200831104730.28970-1-sjpark@amazon.com>

From: SeongJae Park <sjpark@amazon.de>

This commit adds more test cases for the new feature, 'init_regions'.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
---
 mm/damon-test.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/mm/damon-test.h b/mm/damon-test.h
index 71413ffc1dcb..e67e8fb17eca 100644
--- a/mm/damon-test.h
+++ b/mm/damon-test.h
@@ -161,6 +161,58 @@ static void damon_test_set_recording(struct kunit *test)
 	KUNIT_EXPECT_STREQ(test, ctx->rfile_path, "foo");
 }
 
+static void damon_test_set_init_regions(struct kunit *test)
+{
+	struct damon_ctx *ctx = &damon_user_ctx;
+	unsigned long ids[] = {1, 2, 3};
+	/* Each line represents one region in ``<target id> <start> <end>`` */
+	char * const valid_inputs[] = {"2 10 20\n 2   20 30\n2 35 45",
+		"2 10 20\n",
+		"2 10 20\n1 39 59\n1 70 134\n  2  20 25\n",
+		""};
+	/* Reading the file again will show sorted, clean output */
+	char * const valid_expects[] = {"2 10 20\n2 20 30\n2 35 45\n",
+		"2 10 20\n",
+		"1 39 59\n1 70 134\n2 10 20\n2 20 25\n",
+		""};
+	char * const invalid_inputs[] = {"4 10 20\n",	/* target not exists */
+		"2 10 20\n 2 14 26\n",		/* regions overlap */
+		"1 10 20\n2 30 40\n 1 5 8"};	/* not sorted by address */
+	char *input, *expect;
+	int i, rc;
+	char buf[256];
+
+	damon_set_targets(ctx, ids, 3);
+
+	/* Put valid inputs and check the results */
+	for (i = 0; i < ARRAY_SIZE(valid_inputs); i++) {
+		input = valid_inputs[i];
+		expect = valid_expects[i];
+
+		rc = set_init_regions(ctx, input, strnlen(input, 256));
+		KUNIT_EXPECT_EQ(test, rc, 0);
+
+		memset(buf, 0, 256);
+		sprint_init_regions(ctx, buf, 256);
+
+		KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
+	}
+	/* Put invlid inputs and check the return error code */
+	for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
+		input = invalid_inputs[i];
+		pr_info("input: %s\n", input);
+		rc = set_init_regions(ctx, input, strnlen(input, 256));
+		KUNIT_EXPECT_EQ(test, rc, -EINVAL);
+
+		memset(buf, 0, 256);
+		sprint_init_regions(ctx, buf, 256);
+
+		KUNIT_EXPECT_STREQ(test, (char *)buf, "");
+	}
+
+	damon_set_targets(ctx, NULL, 0);
+}
+
 static void __link_vmas(struct vm_area_struct *vmas, ssize_t nr_vmas)
 {
 	int i, j;
@@ -645,6 +697,7 @@ static struct kunit_case damon_test_cases[] = {
 	KUNIT_CASE(damon_test_regions),
 	KUNIT_CASE(damon_test_set_targets),
 	KUNIT_CASE(damon_test_set_recording),
+	KUNIT_CASE(damon_test_set_init_regions),
 	KUNIT_CASE(damon_test_three_regions_in_vmas),
 	KUNIT_CASE(damon_test_aggregate),
 	KUNIT_CASE(damon_test_write_rbuf),
-- 
2.17.1



  parent reply	other threads:[~2020-08-31 10:49 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-31 10:47 [RFC v8 00/10] DAMON: Support Physical Memory Address Space Monitoring SeongJae Park
2020-08-31 10:47 ` [RFC v8 01/10] mm/damon/debugfs: Allow users to set initial monitoring target regions SeongJae Park
2020-08-31 18:08   ` Marco Elver
2020-09-01  6:35     ` SeongJae Park
2020-08-31 10:47 ` [RFC v8 02/10] tools/damon: Support init target regions specification SeongJae Park
2020-08-31 10:47 ` SeongJae Park [this message]
2020-08-31 10:47 ` [RFC v8 04/10] selftests/damon/_chk_record: Do not check number of gaps SeongJae Park
2020-08-31 10:47 ` [RFC v8 05/10] Docs/admin-guide/mm/damon: Document 'init_regions' feature SeongJae Park
2020-08-31 10:47 ` [RFC v8 06/10] mm/damon: Implement callbacks for physical memory monitoring SeongJae Park
2020-08-31 10:47 ` [RFC v8 07/10] mm/damon/debugfs: Support " SeongJae Park
2020-08-31 10:47 ` [RFC v8 08/10] tools/damon/record: " SeongJae Park
2020-08-31 10:47 ` [RFC v8 09/10] tools/damon/record: Support NUMA specific recording SeongJae Park
2020-08-31 10:47 ` [RFC v8 10/10] Docs/DAMON: Document physical memory monitoring support SeongJae Park
2020-09-01  6:37 ` [RFC v8 00/10] DAMON: Support Physical Memory Address Space Monitoring SeongJae Park

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