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stdlib: Conditionally undef some SDL_strtox tests

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Some test cases have implementation-defined results,
so we should only test these when we know SDL's own
implementations of the functions are used.
This commit is contained in:
Carl Åstholm 2024-09-13 18:09:16 +02:00 committed by Sam Lantinga
parent 59ec034412
commit eb199176e6
2 changed files with 64 additions and 22 deletions
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21
src/stdlib/SDL_string.c
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@ -389,8 +389,13 @@ static size_t SDL_ScanUnsignedLongLongInternal(const char *text, int count, int
} while (count == 0 || (text - text_start) != count);
}
if (text == number_start) {
// no number was parsed, and thus no characters were consumed
text = text_start;
if (radix == 16 && text > text_start && (*(text - 1) == 'x' || *(text - 1) == 'X')) {
// the string was "0x"; consume the '0' but not the 'x'
--text;
} else {
// no number was parsed, and thus no characters were consumed
text = text_start;
}
}
if (overflow) {
if (negative) {
@ -478,8 +483,13 @@ static size_t SDL_ScanUnsignedLongLongInternalW(const wchar_t *text, int count,
} while (count == 0 || (text - text_start) != count);
}
if (text == number_start) {
// no number was parsed, and thus no characters were consumed
text = text_start;
if (radix == 16 && text > text_start && (*(text - 1) == 'x' || *(text - 1) == 'X')) {
// the string was "0x"; consume the '0' but not the 'x'
--text;
} else {
// no number was parsed, and thus no characters were consumed
text = text_start;
}
}
if (overflow) {
if (negative) {
@ -656,8 +666,7 @@ static size_t SDL_ScanFloat(const char *text, double *valuep)
if (text == number_start) {
// no number was parsed, and thus no characters were consumed
text = text_start;
}
if (negative) {
} else if (negative) {
value = -value;
}
*valuep = value;

65
test/testautomation_stdlib.c
View File

@ -4,6 +4,7 @@
#include <SDL3/SDL.h>
#include <SDL3/SDL_test.h>
#include "testautomation_suites.h"
#include "SDL_build_config.h"
/* Test case functions */
@ -1267,9 +1268,24 @@ static int SDLCALL stdlib_wcstol(void *arg)
WCSTOL_TEST_CASE(L"00110011", 2, 51, 8);
WCSTOL_TEST_CASE(L"-uvwxyz", 32, -991, 3);
WCSTOL_TEST_CASE(L"ZzZzZzZzZzZzZ", 36, long_max, 13);
WCSTOL_TEST_CASE(L"-0", 10, 0, 2);
WCSTOL_TEST_CASE(L" - 1", 0, 0, 0); // invalid input
#ifndef HAVE_WCSTOL
// implementation-defined
WCSTOL_TEST_CASE(L" +0x", 0, 0, 3);
#endif
// values near the bounds of the type
if (sizeof(long) == 4) {
WCSTOL_TEST_CASE(L"2147483647", 10, 2147483647, 10);
WCSTOL_TEST_CASE(L"2147483648", 10, 2147483647, 10);
WCSTOL_TEST_CASE(L"-2147483648", 10, -2147483647L - 1, 11);
WCSTOL_TEST_CASE(L"-2147483649", 10, -2147483647L - 1, 11);
WCSTOL_TEST_CASE(L"-9999999999999999999999999999999999999999", 10, -2147483647L - 1, 41);
}
#undef WCSTOL_TEST_CASE
return TEST_COMPLETED;
@ -1295,7 +1311,6 @@ static int SDLCALL stdlib_strtox(void *arg)
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "+123abcxyz", 0, 123, 4);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-123abcxyz", 0, -123, 4);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "9999999999999999999999999999999999999999abcxyz", 0, ullong_max, 40);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-9999999999999999999999999999999999999999abcxyz", 0, ullong_max, 41);
// infer hexadecimal
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "0x123abcxyz", 0, 0x123abc, 8);
@ -1308,40 +1323,54 @@ static int SDLCALL stdlib_strtox(void *arg)
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "00110011", 2, 51, 8);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-uvwxyz", 32, -991, 3);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "ZzZzZzZzZzZzZzZzZzZzZzZzZ", 36, ullong_max, 25);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-0", 10, 0, 2);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", " - 1", 0, 0, 0); // invalid input
#ifndef HAVE_STRTOULL
// implementation-defined
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", " +0x", 0, 0, 3);
#endif
// We know that SDL_strtol, SDL_strtoul and SDL_strtoll share the same code path as SDL_strtoull under the hood,
// so the most interesting test cases are those close to the bounds of the integer type.
// For simplicity, we only run long/long long tests when they are 32-bit/64-bit, respectively.
// Suppressing warnings would be difficult otherwise.
// Since the CI runs the tests against a variety of targets, this should be fine in practice.
// SDL_strtol (32-bit)
if (sizeof(long) == 4) {
STRTOX_TEST_CASE(SDL_strtol, long, "%ld", "2147483647", 10, 2147483647, 10);
STRTOX_TEST_CASE(SDL_strtol, long, "%ld", "2147483648", 10, 2147483647, 10);
STRTOX_TEST_CASE(SDL_strtol, long, "%ld", "-2147483648", 10, -2147483647L - 1, 11);
STRTOX_TEST_CASE(SDL_strtol, long, "%ld", "-2147483649", 10, -2147483647L - 1, 11);
STRTOX_TEST_CASE(SDL_strtol, long, "%ld", "-9999999999999999999999999999999999999999", 10, -2147483647L - 1, 41);
}
// SDL_strtoul (32-bit)
if (sizeof(unsigned long) == 4) {
STRTOX_TEST_CASE(SDL_strtoul, unsigned long, "%lu", "4294967295", 10, 4294967295, 10);
STRTOX_TEST_CASE(SDL_strtoul, unsigned long, "%lu", "4294967296", 10, 4294967295, 10);
STRTOX_TEST_CASE(SDL_strtoul, unsigned long, "%lu", "-4294967295", 10, 1, 11);
#ifndef HAVE_STRTOUL
// implementation-defined
STRTOX_TEST_CASE(SDL_strtoul, unsigned long, "%lu", "-4294967296", 10, 4294967295, 11);
STRTOX_TEST_CASE(SDL_strtoul, unsigned long, "%lu", "-9999999999999999999999999999999999999999", 10, 4294967295, 41);
#endif
}
// SDL_strtoll (64-bit)
if (sizeof(long long) == 8) {
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "9223372036854775807", 10, 9223372036854775807, 19);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "9223372036854775808", 10, 9223372036854775807, 19);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "9223372036854775807", 10, 9223372036854775807LL, 19);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "9223372036854775808", 10, 9223372036854775807LL, 19);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "-9223372036854775808", 10, -9223372036854775807LL - 1, 20);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "-9223372036854775809", 10, -9223372036854775807LL - 1, 20);
STRTOX_TEST_CASE(SDL_strtoll, long long, "%lld", "-9999999999999999999999999999999999999999", 10, -9223372036854775807LL - 1, 41);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "18446744073709551615", 10, 18446744073709551615ULL, 20);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "18446744073709551616", 10, 18446744073709551615ULL, 20);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-18446744073709551615", 10, 1, 21);
#ifndef HAVE_STRTOULL
// implementation-defined
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-18446744073709551616", 10, 18446744073709551615ULL, 21);
STRTOX_TEST_CASE(SDL_strtoull, unsigned long long, "%llu", "-9999999999999999999999999999999999999999", 10, 18446744073709551615ULL, 41);
#endif
}
#undef STRTOX_TEST_CASE
@ -1351,21 +1380,25 @@ static int SDLCALL stdlib_strtox(void *arg)
static int SDLCALL stdlib_strtod(void *arg)
{
#define STRTOD_TEST_CASE(str, expected_result, expected_endp_offset) do { \
const char *s = str; \
double r, expected_r = expected_result; \
char *ep, *expected_ep = (char *)s + expected_endp_offset; \
r = SDL_strtod(s, &ep); \
SDLTest_AssertPass("Call to SDL_strtod(" #str ", &endp)"); \
SDLTest_AssertCheck(r == expected_r, "Check result value, expected: %f, got: %f", expected_r, r); \
SDLTest_AssertCheck(ep == expected_ep, "Check endp value, expected: %p, got: %p", expected_ep, ep); \
#define STRTOD_TEST_CASE(str, expected_result, expected_endp_offset) do { \
const char *s = str; \
double r, expected_r = expected_result; \
char *ep, *expected_ep = (char *)s + expected_endp_offset; \
r = SDL_strtod(s, &ep); \
SDLTest_AssertPass("Call to SDL_strtod(" #str ", &endp)"); \
SDLTest_AssertCheck(r == expected_r && (r != 0.0 || 1.0 / r == 1.0 / expected_r), "Check result value, expected: %f, got: %f", expected_r, r); \
SDLTest_AssertCheck(ep == expected_ep, "Check endp value, expected: %p, got: %p", expected_ep, ep); \
} while (0)
STRTOD_TEST_CASE("\t 123.75abcxyz", 123.75, 9); // skip leading space
STRTOD_TEST_CASE("+999.555", 999.555, 8);
STRTOD_TEST_CASE("-999.555", -999.555, 8);
#ifndef HAVE_STRTOD
// implementation-defined
STRTOD_TEST_CASE("-0", -0.0, 2);
STRTOD_TEST_CASE(" - 1", 0.0, 0); // invalid input
#endif
#undef STRTOD_TEST_CASE