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perf util: Add a function for replacing characters in a string

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It finds all occurrences of a single character and replaces them with
a multi character string. This will be used in a test in a following
commit.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chen Zhongjin <chenzhongjin@huawei.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Haixin Yu <yuhaixin.yhx@linux.alibaba.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230904095104.1162928-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
James Clark
2023-09-04 10:50:45 +01:00
committed by Arnaldo Carvalho de Melo
parent f561fc78c5
commit 8a55c1e2c9
6 changed files with 83 additions and 0 deletions
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31
tools/perf/tests/util.c Normal file
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@@ -0,0 +1,31 @@
// SPDX-License-Identifier: GPL-2.0
#include "tests.h"
#include "util/debug.h"
#include <linux/compiler.h>
#include <stdlib.h>
#include <string2.h>
static int test_strreplace(char needle, const char *haystack,
const char *replace, const char *expected)
{
char *new = strreplace_chars(needle, haystack, replace);
int ret = strcmp(new, expected);
free(new);
return ret == 0;
}
static int test__util(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
{
TEST_ASSERT_VAL("empty string", test_strreplace(' ', "", "123", ""));
TEST_ASSERT_VAL("no match", test_strreplace('5', "123", "4", "123"));
TEST_ASSERT_VAL("replace 1", test_strreplace('3', "123", "4", "124"));
TEST_ASSERT_VAL("replace 2", test_strreplace('a', "abcabc", "ef", "efbcefbc"));
TEST_ASSERT_VAL("replace long", test_strreplace('a', "abcabc", "longlong",
"longlongbclonglongbc"));
return 0;
}
DEFINE_SUITE("util", util);