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test.c
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#include "safe.h"
#include "munit/munit.h"
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
static MunitResult
test_safe_generic(const MunitParameter params[], void* user_data) {
(void) params;
(void) user_data;
unsigned long long a = 1, b = 1, res;
do {
if (!safe_add(&res, a, b)) {
munit_logf(MUNIT_LOG_DEBUG, "%llu + %llu overflows", a, b);
break;
}
munit_logf(MUNIT_LOG_DEBUG, "%llu + %llu = %llu", a, b, res);
a = b;
b = res;
} while (1);
return MUNIT_OK;
}
#endif
#define DEFINE_SAFE_TESTS(T, name, min, max) \
static MunitResult \
test_safe_##name##_add(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_add(&result, 0, 1)); \
munit_assert_cmp_##name(result, ==, 1); \
munit_assert_true(safe_##name##_add(&result, 1, 1)); \
munit_assert_cmp_##name(result, ==, 2); \
munit_assert_true(safe_##name##_add(&result, 1, max - 1)); \
munit_assert_cmp_##name(result, ==, max); \
munit_assert_false(safe_##name##_add(&result, max, 1)); \
return MUNIT_OK; \
} \
\
static MunitResult \
test_safe_##name##_sub(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_sub(&result, 1, 1)); \
munit_assert_cmp_##name(result, ==, 0); \
munit_assert_false(safe_##name##_sub(&result, min, 1)); \
munit_assert_true(safe_##name##_sub(&result, max, 1)); \
munit_assert_cmp_##name(result, ==, max - 1); \
return MUNIT_OK; \
} \
\
static MunitResult \
test_safe_##name##_mul(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_mul(&result, 2, 2)); \
munit_assert_cmp_##name(result, ==, 4); \
munit_assert_true(safe_##name##_mul(&result, 0, max)); \
munit_assert_cmp_##name(result, ==, 0); \
munit_assert_true(safe_##name##_mul(&result, max, 0)); \
munit_assert_cmp_##name(result, ==, 0); \
munit_assert_true(safe_##name##_mul(&result, min, 0)); \
munit_assert_cmp_##name(result, ==, 0); \
return MUNIT_OK; \
} \
\
static MunitResult \
test_safe_##name##_div(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_div(&result, 2, 2)); \
munit_assert_cmp_##name(result, ==, 1); \
munit_assert_false(safe_##name##_div(&result, 1, 0)); \
munit_assert_cmp_##name(result, ==, 0); \
return MUNIT_OK; \
} \
\
static MunitResult \
test_safe_##name##_mod(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_mod(&result, 10, 4)); \
munit_assert_cmp_##name(result, ==, 2); \
munit_assert_false(safe_##name##_mod(&result, 1, 0)); \
munit_assert_cmp_##name(result, ==, 0); \
return MUNIT_OK; \
}
#define DEFINE_SAFE_TESTS_S(T, name, min, max) \
DEFINE_SAFE_TESTS(T, name, min, max) \
static MunitResult \
test_safe_##name##_div_signed(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_false(safe_##name##_div(&result, min, -1)); \
munit_assert_cmp_##name(result, ==, min); \
return MUNIT_OK; \
} \
\
static MunitResult \
test_safe_##name##_neg_signed(const MunitParameter params[], void* user_data) { \
(void) params; \
(void) user_data; \
T result; \
munit_assert_true(safe_##name##_neg(&result, max)); \
munit_assert_cmp_##name(result, ==, -max); \
munit_assert_false(safe_##name##_neg(&result, min)); \
munit_assert_cmp_##name(result, ==, min); \
return MUNIT_OK; \
}
#define DEFINE_SAFE_TEST_ENTRY(name, op) \
{ (char*) "/" #name "/" #op, test_safe_##name##_##op, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
#define DEFINE_SAFE_TEST_ENTRY_S(name, op) \
{ (char*) "/" #name "/" #op "/signed", test_safe_##name##_##op##_signed, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
#define DEFINE_SAFE_TEST_ENTRIES(name) \
DEFINE_SAFE_TEST_ENTRY(name, add), \
DEFINE_SAFE_TEST_ENTRY(name, sub), \
DEFINE_SAFE_TEST_ENTRY(name, mul), \
DEFINE_SAFE_TEST_ENTRY(name, div), \
DEFINE_SAFE_TEST_ENTRY(name, mod)
#define DEFINE_SAFE_TEST_ENTRIES_S(name) \
DEFINE_SAFE_TEST_ENTRIES(name), \
DEFINE_SAFE_TEST_ENTRY_S(name, div), \
DEFINE_SAFE_TEST_ENTRY_S(name, neg)
DEFINE_SAFE_TESTS_S(char, char, CHAR_MIN, CHAR_MAX)
DEFINE_SAFE_TESTS (unsigned char, uchar, 0, UCHAR_MAX)
DEFINE_SAFE_TESTS_S(short, short, SHRT_MIN, SHRT_MAX)
DEFINE_SAFE_TESTS (unsigned short, ushort, 0, USHRT_MAX)
DEFINE_SAFE_TESTS_S(int, int, INT_MIN, INT_MAX)
DEFINE_SAFE_TESTS (unsigned int, uint, 0, UINT_MAX)
DEFINE_SAFE_TESTS_S(long, long, LONG_MIN, LONG_MAX)
DEFINE_SAFE_TESTS (unsigned long, ulong, 0, ULONG_MAX)
DEFINE_SAFE_TESTS_S(long long, llong, LLONG_MIN, LLONG_MAX)
DEFINE_SAFE_TESTS (unsigned long long, ullong, 0, ULLONG_MAX)
DEFINE_SAFE_TESTS (size_t, size, 0, SIZE_MAX)
#if !defined(SAFE_NO_FIXED)
DEFINE_SAFE_TESTS_S(int8_t, int8, INT8_MIN, INT8_MAX)
DEFINE_SAFE_TESTS (uint8_t, uint8, 0, UINT8_MAX)
DEFINE_SAFE_TESTS_S(int16_t, int16, INT16_MIN, INT16_MAX)
DEFINE_SAFE_TESTS (uint16_t, uint16, 0, UINT16_MAX)
DEFINE_SAFE_TESTS_S(int32_t, int32, INT32_MIN, INT32_MAX)
DEFINE_SAFE_TESTS (uint32_t, uint32, 0, UINT32_MAX)
DEFINE_SAFE_TESTS_S(int64_t, int64, INT64_MIN, INT64_MAX)
DEFINE_SAFE_TESTS (uint64_t, uint64, 0, UINT64_MAX)
#endif /* !defined(SAFE_NO_FIXED) */
static MunitTest safe_test_suite_tests[] = {
DEFINE_SAFE_TEST_ENTRIES_S(char),
DEFINE_SAFE_TEST_ENTRIES(uchar),
DEFINE_SAFE_TEST_ENTRIES_S(short),
DEFINE_SAFE_TEST_ENTRIES(ushort),
DEFINE_SAFE_TEST_ENTRIES_S(int),
DEFINE_SAFE_TEST_ENTRIES(uint),
DEFINE_SAFE_TEST_ENTRIES_S(long),
DEFINE_SAFE_TEST_ENTRIES(ulong),
DEFINE_SAFE_TEST_ENTRIES_S(llong),
DEFINE_SAFE_TEST_ENTRIES(ullong),
DEFINE_SAFE_TEST_ENTRIES(size),
#if !defined(SAFE_NO_FIXED)
DEFINE_SAFE_TEST_ENTRIES_S(int8),
DEFINE_SAFE_TEST_ENTRIES(uint8),
DEFINE_SAFE_TEST_ENTRIES_S(int16),
DEFINE_SAFE_TEST_ENTRIES(uint16),
DEFINE_SAFE_TEST_ENTRIES_S(int32),
DEFINE_SAFE_TEST_ENTRIES(uint32),
DEFINE_SAFE_TEST_ENTRIES_S(int64),
DEFINE_SAFE_TEST_ENTRIES(uint64),
#endif /* !defined(SAFE_NO_FIXED) */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
{ "/generic", test_safe_generic, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
#endif
{ NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
};
static const MunitSuite test_suite = {
(char*) "/safe",
safe_test_suite_tests,
NULL,
1,
MUNIT_SUITE_OPTION_NONE
};
int main(int argc, const char* argv[MUNIT_ARRAY_PARAM(argc + 1)]) {
return munit_suite_main(&test_suite, NULL, argc, argv);
}