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test: add test that validates that PTR_TO_INT(INT_TO_PTR()) covers whole int range

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This commit is contained in:
Lennart Poettering 2020-10-02 09:13:17 +02:00
parent ccaa30c199
commit 463f9ce3bc
1 changed files with 14 additions and 0 deletions
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14
src/test/test-util.c
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@ -414,6 +414,8 @@ static void test_foreach_pointer(void) {
int a, b, c, *i;
size_t k = 0;
log_info("/* %s */", __func__);
FOREACH_POINTER(i, &a, &b, &c) {
switch (k) {
@ -489,6 +491,17 @@ static void test_foreach_pointer(void) {
assert(k == 11);
}
static void test_ptr_to_int(void) {
log_info("/* %s */", __func__);
/* Primary reason to have this test is to validate that pointers are large enough to hold entire int range */
assert_se(PTR_TO_INT(INT_TO_PTR(0)) == 0);
assert_se(PTR_TO_INT(INT_TO_PTR(1)) == 1);
assert_se(PTR_TO_INT(INT_TO_PTR(-1)) == -1);
assert_se(PTR_TO_INT(INT_TO_PTR(INT_MAX)) == INT_MAX);
assert_se(PTR_TO_INT(INT_TO_PTR(INT_MIN)) == INT_MIN);
}
int main(int argc, char *argv[]) {
test_setup_logging(LOG_INFO);
@ -508,6 +521,7 @@ int main(int argc, char *argv[]) {
test_system_tasks_max();
test_system_tasks_max_scale();
test_foreach_pointer();
test_ptr_to_int();
return 0;
}