Commit 1063649c authored by Rodrigo Campos's avatar Rodrigo Campos Committed by Thomas Weißschuh
Browse files

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



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: default avatarRodrigo Campos <rodrigo@sdfg.com.ar>
Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
parent fbffce81

tools/testing/selftests/nolibc/nolibc-test.c

+40 −0
Original line number Diff line number Diff line
@@ -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;