void test_list_remove_entry(void)
{
ListEntry *empty_list = NULL;
ListEntry *list;
ListEntry *entry;
list = generate_list();
/* Remove the third entry */
entry = list_nth_entry(list, 2);
assert(list_remove_entry(&list, entry) != 0);
assert(list_length(list) == 3);
check_list_integrity(list);
/* Remove the first entry */
entry = list_nth_entry(list, 0);
assert(list_remove_entry(&list, entry) != 0);
assert(list_length(list) == 2);
check_list_integrity(list);
/* Try some invalid removes */
/* NULL */
assert(list_remove_entry(&list, NULL) == 0);
/* Removing NULL from an empty list */
assert(list_remove_entry(&empty_list, NULL) == 0);
list_free(list);
/* Test removing an entry when it is the only entry. */
list = NULL;
assert(list_append(&list, &variable1) != NULL);
assert(list != NULL);
assert(list_remove_entry(&list, list) != 0);
assert(list == NULL);
/* Test removing the last entry */
list = generate_list();
entry = list_nth_entry(list, 3);
assert(list_remove_entry(&list, entry) != 0);
check_list_integrity(list);
list_free(list);
}
void test_list_nth_entry(void)
{
ListEntry *list;
ListEntry *entry;
list = generate_list();
/* Check all values in the list */
entry = list_nth_entry(list, 0);
assert(list_data(entry) == &variable1);
entry = list_nth_entry(list, 1);
assert(list_data(entry) == &variable2);
entry = list_nth_entry(list, 2);
assert(list_data(entry) == &variable3);
entry = list_nth_entry(list, 3);
assert(list_data(entry) == &variable4);
/* Check out of range values */
entry = list_nth_entry(list, 4);
assert(entry == NULL);
entry = list_nth_entry(list, 400);
assert(entry == NULL);
list_free(list);
}
ListValue list_nth_data(ListEntry *list, unsigned int n)
{
ListEntry *entry;
/* Find the specified entry */
entry = list_nth_entry(list, n);
/* If out of range, return NULL, otherwise return the data */
if (entry == NULL) {
return LIST_NULL;
} else {
return entry->data;
}
}
