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selftests/nolibc: Add tests for strlcat() and strlcpy()

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I've verified that the tests matches libbsd's strlcat()/strlcpy()
implementation.

Please note that as strlcat()/strlcpy() are not part of the libc, the
tests are only compiled when using nolibc.

Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
This commit is contained in:
Rodrigo Campos 2024-02-18 16:51:06 -03:00 committed by Thomas Weißschuh
parent fbffce819e
commit 1063649cf5
1 changed files with 40 additions and 0 deletions
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40
tools/testing/selftests/nolibc/nolibc-test.c
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@ -600,6 +600,25 @@ int expect_strne(const char *expr, int llen, const char *cmp)
return ret;
}
#define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \
do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0)
static __attribute__((unused))
int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp)
{
llen += printf(" = %lu <%s> ", expr, buf);
if (strcmp(buf, cmp) != 0) {
result(llen, FAIL);
return 1;
}
if (expr != val) {
result(llen, FAIL);
return 1;
}
result(llen, OK);
return 0;
}
/* declare tests based on line numbers. There must be exactly one test per line. */
#define CASE_TEST(name) \
@ -991,6 +1010,14 @@ int run_stdlib(int min, int max)
for (test = min; test >= 0 && test <= max; test++) {
int llen = 0; /* line length */
/* For functions that take a long buffer, like strlcat()
* Add some more chars after the \0, to test functions that overwrite the buffer set
* the \0 at the exact right position.
*/
char buf[10] = "test123456";
buf[4] = '\0';
/* avoid leaving empty lines below, this will insert holes into
* test numbers.
*/
@ -1007,6 +1034,19 @@ int run_stdlib(int min, int max)
CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break;
CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
#ifdef NOLIBC
CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 0), buf, 3, "test"); break;
CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 1), buf, 4, "test"); break;
CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 5), buf, 7, "test"); break;
CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 6), buf, 7, "testb"); break;
CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 7), buf, 7, "testba"); break;
CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 8), buf, 7, "testbar"); break;
CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 0), buf, 3, "test"); break;
CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 1), buf, 3, ""); break;
CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 2), buf, 3, "b"); break;
CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 3), buf, 3, "ba"); break;
CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 4), buf, 3, "bar"); break;
#endif
CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;