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/* Copyright 2022 The ChromiumOS Authors.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test standard library functions.
*/
#include "common.h"
#include "console.h"
#include "system.h"
#include "printf.h"
#include "shared_mem.h"
#include "test_util.h"
#include "timer.h"
#include "util.h"
static int test_isalpha(void)
{
TEST_CHECK(isalpha('a'));
TEST_CHECK(isalpha('z'));
TEST_CHECK(isalpha('A'));
TEST_CHECK(isalpha('Z'));
TEST_CHECK(!isalpha('0'));
TEST_CHECK(!isalpha('~'));
TEST_CHECK(!isalpha(' '));
TEST_CHECK(!isalpha('\0'));
TEST_CHECK(!isalpha('\n'));
}
static int test_isprint(void)
{
TEST_CHECK(isprint('a'));
TEST_CHECK(isprint('z'));
TEST_CHECK(isprint('A'));
TEST_CHECK(isprint('Z'));
TEST_CHECK(isprint('0'));
TEST_CHECK(isprint('~'));
TEST_CHECK(isprint(' '));
TEST_CHECK(!isprint('\0'));
TEST_CHECK(!isprint('\n'));
}
static int test_strstr(void)
{
const char s1[] = "abcde";
TEST_ASSERT(strstr(s1, "ab") == s1);
TEST_ASSERT(strstr(s1, "") == NULL);
TEST_ASSERT(strstr("", "ab") == NULL);
TEST_ASSERT(strstr("", "x") == NULL);
TEST_ASSERT(strstr(s1, "de") == &s1[3]);
TEST_ASSERT(strstr(s1, "def") == NULL);
return EC_SUCCESS;
}
static int test_strtoull(void)
{
char *e;
TEST_ASSERT(strtoull("10", &e, 0) == 10);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("010", &e, 0) == 8);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("+010", &e, 0) == 8);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("-010", &e, 0) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull("0x1f z", &e, 0) == 31);
TEST_ASSERT(e && (*e == ' '));
TEST_ASSERT(strtoull("0X1f z", &e, 0) == 31);
TEST_ASSERT(e && (*e == ' '));
TEST_ASSERT(strtoull("10a", &e, 16) == 266);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("0x02C", &e, 16) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("+0x02C", &e, 16) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("-0x02C", &e, 16) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull("0x02C", &e, 0) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("+0x02C", &e, 0) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("-0x02C", &e, 0) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull("0X02C", &e, 16) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("+0X02C", &e, 16) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("-0X02C", &e, 16) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull("0X02C", &e, 0) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("+0X02C", &e, 0) == 44);
TEST_ASSERT(e && (*e == '\0'));
TEST_ASSERT(strtoull("-0X02C", &e, 0) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull(" -12", &e, 0) == 0);
TEST_ASSERT(e && (*e == '-'));
TEST_ASSERT(strtoull("!", &e, 0) == 0);
TEST_ASSERT(e && (*e == '!'));
TEST_ASSERT(strtoull("+!", &e, 0) == 0);
TEST_ASSERT(e && (*e == '!'));
TEST_ASSERT(strtoull("+0!", &e, 0) == 0);
TEST_ASSERT(e && (*e == '!'));
TEST_ASSERT(strtoull("+0x!", &e, 0) == 0);
TEST_ASSERT(e && (*e == '!'));
TEST_ASSERT(strtoull("+0X!", &e, 0) == 0);
TEST_ASSERT(e && (*e == '!'));
return EC_SUCCESS;
}
static int test_strncpy(void)
{
char dest[10];
strncpy(dest, "test", 10);
TEST_ASSERT_ARRAY_EQ("test", dest, 5);
strncpy(dest, "12345", 6);
TEST_ASSERT_ARRAY_EQ("12345", dest, 6);
/*
* gcc complains:
* error: ‘__builtin_strncpy’ output truncated copying 10 bytes from a
* string of length 12 [-Werror=stringop-truncation]
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstringop-truncation"
strncpy(dest, "testtesttest", 10);
#pragma GCC diagnostic pop
TEST_ASSERT_ARRAY_EQ("testtestte", dest, 10);
return EC_SUCCESS;
}
static int test_strncmp(void)
{
TEST_ASSERT(strncmp("123", "123", 8) == 0);
TEST_ASSERT(strncmp("789", "456", 8) > 0);
TEST_ASSERT(strncmp("abc", "abd", 4) < 0);
TEST_ASSERT(strncmp("abc", "abd", 2) == 0);
return EC_SUCCESS;
}
static int test_strlen(void)
{
TEST_CHECK(strlen("this is a string") == 16);
}
static int test_strnlen(void)
{
TEST_ASSERT(strnlen("this is a string", 17) == 16);
TEST_ASSERT(strnlen("this is a string", 16) == 16);
TEST_ASSERT(strnlen("this is a string", 5) == 5);
return EC_SUCCESS;
}
static int test_strcasecmp(void)
{
TEST_CHECK(strcasecmp("test string", "TEST strIng") == 0);
TEST_CHECK(strcasecmp("test123!@#", "TesT123!@#") == 0);
TEST_CHECK(strcasecmp("lower", "UPPER") != 0);
}
static int test_strncasecmp(void)
{
TEST_CHECK(strncasecmp("test string", "TEST str", 4) == 0);
TEST_CHECK(strncasecmp("test string", "TEST str", 8) == 0);
TEST_CHECK(strncasecmp("test123!@#", "TesT321!@#", 5) != 0);
TEST_CHECK(strncasecmp("test123!@#", "TesT321!@#", 4) == 0);
TEST_CHECK(strncasecmp("1test123!@#", "1TesT321!@#", 5) == 0);
TEST_CHECK(strncasecmp("1test123", "teststr", 0) == 0);
}
static int test_atoi(void)
{
TEST_CHECK(atoi(" 901") == 901);
TEST_CHECK(atoi("-12c") == -12);
TEST_CHECK(atoi(" 0 ") == 0);
TEST_CHECK(atoi("\t111") == 111);
}
static int test_snprintf(void)
{
char buffer[32];
TEST_CHECK(snprintf(buffer, sizeof(buffer), "%u", 1234) == 4);
TEST_CHECK(strncmp(buffer, "1234", sizeof(buffer)));
}
static int test_strcspn(void)
{
const char str1[] = "abc";
const char str2[] = "This is a string\nwith newlines!";
TEST_EQ(strcspn(str1, "a"), (size_t)0, "%zu");
TEST_EQ(strcspn(str1, "b"), (size_t)1, "%zu");
TEST_EQ(strcspn(str1, "c"), (size_t)2, "%zu");
TEST_EQ(strcspn(str1, "ccc"), (size_t)2, "%zu");
TEST_EQ(strcspn(str1, "cba"), (size_t)0, "%zu");
TEST_EQ(strcspn(str1, "cb"), (size_t)1, "%zu");
TEST_EQ(strcspn(str1, "bc"), (size_t)1, "%zu");
TEST_EQ(strcspn(str1, "cbc"), (size_t)1, "%zu");
TEST_EQ(strcspn(str1, "z"), strlen(str1), "%zu");
TEST_EQ(strcspn(str1, "xyz"), strlen(str1), "%zu");
TEST_EQ(strcspn(str1, ""), strlen(str1), "%zu");
TEST_EQ(strcspn(str2, " "), (size_t)4, "%zu");
TEST_EQ(strcspn(str2, "\n"), (size_t)16, "%zu");
TEST_EQ(strcspn(str2, "\n "), (size_t)4, "%zu");
TEST_EQ(strcspn(str2, "!"), strlen(str2) - 1, "%zu");
TEST_EQ(strcspn(str2, "z"), strlen(str2), "%zu");
TEST_EQ(strcspn(str2, "z!"), strlen(str2) - 1, "%zu");
return EC_SUCCESS;
}
static int test_memmove(void)
{
int i;
timestamp_t t0, t1, t2, t3;
char *buf;
const int buf_size = 1000;
const int len = 400;
const int iteration = 1000;
TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
for (i = 0; i < len; ++i)
buf[i] = i & 0x7f;
for (i = len; i < buf_size; ++i)
buf[i] = 0;
t0 = get_time();
for (i = 0; i < iteration; ++i)
memmove(buf + 101, buf, len); /* unaligned */
t1 = get_time();
TEST_ASSERT_ARRAY_EQ(buf + 101, buf, len);
ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
t2 = get_time();
for (i = 0; i < iteration; ++i)
memmove(buf + 100, buf, len); /* aligned */
t3 = get_time();
ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
TEST_ASSERT_ARRAY_EQ(buf + 100, buf, len);
if (!IS_ENABLED(EMU_BUILD))
TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
/* Test small moves */
memmove(buf + 1, buf, 1);
TEST_ASSERT_ARRAY_EQ(buf + 1, buf, 1);
memmove(buf + 5, buf, 4);
memmove(buf + 1, buf, 4);
TEST_ASSERT_ARRAY_EQ(buf + 1, buf + 5, 4);
shared_mem_release(buf);
return EC_SUCCESS;
}
static int test_memcpy(void)
{
int i;
timestamp_t t0, t1, t2, t3;
char *buf;
const int buf_size = 1000;
const int len = 400;
const int dest_offset = 500;
const int iteration = 1000;
TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
for (i = 0; i < len; ++i)
buf[i] = i & 0x7f;
for (i = len; i < buf_size; ++i)
buf[i] = 0;
t0 = get_time();
for (i = 0; i < iteration; ++i)
memcpy(buf + dest_offset + 1, buf, len); /* unaligned */
t1 = get_time();
TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, len);
ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
t2 = get_time();
for (i = 0; i < iteration; ++i)
memcpy(buf + dest_offset, buf, len); /* aligned */
t3 = get_time();
ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, len);
if (!IS_ENABLED(EMU_BUILD))
TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
memcpy(buf + dest_offset + 1, buf + 1, len - 1);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf + 1, len - 1);
/* Test small copies */
memcpy(buf + dest_offset, buf, 1);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, 1);
memcpy(buf + dest_offset, buf, 4);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, 4);
memcpy(buf + dest_offset + 1, buf, 1);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, 1);
memcpy(buf + dest_offset + 1, buf, 4);
TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, 4);
shared_mem_release(buf);
return EC_SUCCESS;
}
/* Plain memset, used as a reference to measure speed gain */
static void *dumb_memset(void *dest, int c, int len)
{
char *d = (char *)dest;
while (len > 0) {
*(d++) = c;
len--;
}
return dest;
}
static int test_memset(void)
{
int i;
timestamp_t t0, t1, t2, t3;
char *buf;
const int buf_size = 1000;
const int len = 400;
const int iteration = 1000;
TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
t0 = get_time();
for (i = 0; i < iteration; ++i)
dumb_memset(buf, 1, len);
t1 = get_time();
TEST_ASSERT_MEMSET(buf, (char)1, len);
ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
t2 = get_time();
for (i = 0; i < iteration; ++i)
memset(buf, 1, len);
t3 = get_time();
TEST_ASSERT_MEMSET(buf, (char)1, len);
ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
if (!IS_ENABLED(EMU_BUILD))
TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
memset(buf, 128, len);
TEST_ASSERT_MEMSET(buf, (char)128, len);
memset(buf, -2, len);
TEST_ASSERT_MEMSET(buf, (char)-2, len);
memset(buf + 1, 1, len - 2);
TEST_ASSERT_MEMSET(buf + 1, (char)1, len - 2);
shared_mem_release(buf);
return EC_SUCCESS;
}
static int test_memchr(void)
{
char *buf = "1234";
TEST_ASSERT(memchr("123567890", '4', 8) == NULL);
TEST_ASSERT(memchr("123", '3', 2) == NULL);
TEST_ASSERT(memchr(buf, '3', 4) == buf + 2);
TEST_ASSERT(memchr(buf, '4', 4) == buf + 3);
return EC_SUCCESS;
}
void run_test(int argc, char **argv)
{
test_reset();
RUN_TEST(test_isalpha);
RUN_TEST(test_isprint);
RUN_TEST(test_strstr);
RUN_TEST(test_strtoull);
RUN_TEST(test_strncpy);
RUN_TEST(test_strncmp);
RUN_TEST(test_strlen);
RUN_TEST(test_strnlen);
RUN_TEST(test_strcasecmp);
RUN_TEST(test_strncasecmp);
RUN_TEST(test_atoi);
RUN_TEST(test_snprintf);
RUN_TEST(test_strcspn);
RUN_TEST(test_memmove);
RUN_TEST(test_memcpy);
RUN_TEST(test_memset);
RUN_TEST(test_memchr);
test_print_result();
}
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