mirror of
https://github.com/bkthomps/Containers.git
synced 2025-11-16 04:24:47 +00:00
e3bc87298f
Introduce bk_err and bk_bool rather than using int for both of these. This means that the function definition now specifies whether 0 means no error, or whether it means false.
691 lines
18 KiB
C
691 lines
18 KiB
C
#include "test.h"
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#include "../src/include/multimap.h"
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/*
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* Include this to verify the tree.
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*/
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struct internal_multimap {
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size_t size;
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size_t key_size;
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size_t value_size;
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int (*key_comparator)(const void *const one, const void *const two);
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int (*value_comparator)(const void *const one, const void *const two);
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char *root;
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char *iterate_get;
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};
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/*
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* Include this to verify the tree.
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*/
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static const size_t ptr_size = sizeof(char *);
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/* static const size_t count_size = sizeof(size_t); */
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/* Node balance is always the first byte (at index 0). */
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/* static const size_t node_value_count_offset = sizeof(signed char); */
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/* static const size_t node_value_head_offset = 1 + sizeof(size_t); */
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static const size_t node_parent_offset = 1 + sizeof(size_t) + sizeof(char *);
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static const size_t node_left_child_offset =
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1 + sizeof(size_t) + 2 * sizeof(char *);
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static const size_t node_right_child_offset =
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1 + sizeof(size_t) + 3 * sizeof(char *);
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static const size_t node_key_offset = 1 + sizeof(size_t) + 4 * sizeof(char *);
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/*
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* Verifies that the AVL tree rules are followed. The balance factor of an item
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* must be the right height minus the left height. Also, the left key must be
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* less than the right key.
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*/
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static int multimap_verify_recursive(char *const item)
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{
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int left;
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int right;
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int max;
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char *item_left;
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char *item_right;
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if (!item) {
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return 0;
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}
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memcpy(&item_left, item + node_left_child_offset, ptr_size);
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memcpy(&item_right, item + node_right_child_offset, ptr_size);
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left = multimap_verify_recursive(item_left);
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right = multimap_verify_recursive(item_right);
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max = left > right ? left : right;
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assert(right - left == item[0]);
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if (item_left && item_right) {
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const int left_val = *(int *) (item_left + node_key_offset);
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const int right_val = *(int *) (item_right + node_key_offset);
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assert(left_val < right_val);
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}
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if (item_left) {
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char *item_left_parent;
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memcpy(&item_left_parent, item_left + node_parent_offset, ptr_size);
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assert(item_left_parent == item);
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assert(item_left_parent + node_key_offset == item + node_key_offset);
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}
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if (item_right) {
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char *item_right_parent;
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memcpy(&item_right_parent, item_right + node_parent_offset, ptr_size);
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assert(item_right_parent == item);
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assert(item_right_parent + node_key_offset == item + node_key_offset);
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}
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return max + 1;
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}
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static size_t multimap_compute_size(char *const item)
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{
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char *left;
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char *right;
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if (!item) {
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return 0;
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}
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memcpy(&left, item + node_left_child_offset, ptr_size);
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memcpy(&right, item + node_right_child_offset, ptr_size);
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return 1 + multimap_compute_size(left) + multimap_compute_size(right);
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}
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static void multimap_verify(multimap me)
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{
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multimap_verify_recursive(me->root);
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assert(multimap_compute_size(me->root) == multimap_size(me));
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}
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static int compare_int(const void *const one, const void *const two)
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{
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const int a = *(int *) one;
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const int b = *(int *) two;
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return a - b;
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}
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static void test_invalid_init(void)
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{
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assert(!multimap_init(0, sizeof(int), compare_int, compare_int));
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assert(!multimap_init(sizeof(int), 0, compare_int, compare_int));
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assert(!multimap_init(sizeof(int), sizeof(int), NULL, compare_int));
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assert(!multimap_init(sizeof(int), sizeof(int), compare_int, NULL));
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}
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static void mutation_order(multimap me, const int *const arr, const int size)
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{
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int i;
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size_t actual_size = 0;
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assert(multimap_is_empty(me));
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for (i = 0; i < size; i++) {
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int num = arr[i];
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if (num > 0) {
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assert(multimap_put(me, &num, &num) == 0);
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actual_size++;
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} else {
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int actual_num = -1 * num;
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assert(multimap_remove(me, &actual_num, &actual_num));
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actual_size--;
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}
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}
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assert(multimap_size(me) == actual_size);
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multimap_verify(me);
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}
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/*
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* Targets the (child->balance == 0) branch.
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*/
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static void test_rotate_left_balanced_child(multimap me)
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{
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int i;
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int arr[] = {2, 4, 1, 3, 5, -1};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 2; i <= 5; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the else branch.
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*/
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static void test_rotate_left_unbalanced_child(multimap me)
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{
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int i;
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int arr[] = {1, 2, 3};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 3; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets (parent->balance == 2 && child->balance >= 0) in the multimap_repair
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* function.
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*/
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static void test_rotate_left(void)
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{
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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test_rotate_left_balanced_child(me);
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multimap_clear(me);
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test_rotate_left_unbalanced_child(me);
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assert(!multimap_destroy(me));
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}
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/*
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* Targets the (child->balance == 0) branch.
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*/
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static void test_rotate_right_balanced_child(multimap me)
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{
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int i;
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int arr[] = {4, 2, 5, 1, 3, -5};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 4; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the else branch.
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*/
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static void test_rotate_right_unbalanced_child(multimap me)
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{
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int i;
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int arr[] = {3, 2, 1};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 3; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets (parent->balance == -2 && child->balance <= 0) in the multimap_repair
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* function.
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*/
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static void test_rotate_right(void)
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{
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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test_rotate_right_balanced_child(me);
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multimap_clear(me);
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test_rotate_right_unbalanced_child(me);
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assert(!multimap_destroy(me));
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}
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/*
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* Targets the (grand_child->balance == 1) branch.
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*/
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static void test_rotate_left_right_positively_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {5, 2, 6, 1, 3, 4};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 6; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the (grand_child->balance == 0) branch.
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*/
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static void test_rotate_left_right_neutral_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {3, 1, 2};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 3; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the else branch.
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*/
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static void test_rotate_left_right_negatively_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {5, 2, 6, 1, 4, 3};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 6; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets (parent->balance == -2 && child->balance == 1) in the multimap_repair
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* function.
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*/
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static void test_rotate_left_right(void)
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{
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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test_rotate_left_right_positively_balanced_grand_child(me);
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multimap_clear(me);
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test_rotate_left_right_neutral_balanced_grand_child(me);
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multimap_clear(me);
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test_rotate_left_right_negatively_balanced_grand_child(me);
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assert(!multimap_destroy(me));
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}
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/*
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* Targets the (grand_child->balance == 1) branch.
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*/
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static void test_rotate_right_left_positively_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {2, 1, 5, 3, 6, 4};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 6; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the (grand_child->balance == 0) branch.
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*/
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static void test_rotate_right_left_neutral_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {1, 3, 2};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 3; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets the else branch.
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*/
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static void test_rotate_right_left_negatively_balanced_grand_child(multimap me)
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{
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int i;
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int arr[] = {2, 1, 5, 4, 6, 3};
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int size = sizeof(arr) / sizeof(arr[0]);
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mutation_order(me, arr, size);
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for (i = 1; i <= 6; i++) {
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assert(multimap_contains(me, &i));
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}
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}
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/*
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* Targets (parent->balance == 2 && child->balance == -1) in the multimap_repair
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* function.
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*/
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static void test_rotate_right_left(void)
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{
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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test_rotate_right_left_positively_balanced_grand_child(me);
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multimap_clear(me);
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test_rotate_right_left_neutral_balanced_grand_child(me);
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multimap_clear(me);
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test_rotate_right_left_negatively_balanced_grand_child(me);
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assert(!multimap_destroy(me));
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}
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/*
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* Targets the multimap_repair function.
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*/
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static void test_auto_balancing(void)
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{
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test_rotate_left();
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test_rotate_right();
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test_rotate_left_right();
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test_rotate_right_left();
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}
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static void test_put_already_existing(void)
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{
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int key = 5;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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assert(multimap_size(me) == 0);
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multimap_put(me, &key, &key);
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assert(multimap_size(me) == 1);
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multimap_put(me, &key, &key);
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assert(multimap_size(me) == 2);
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assert(!multimap_destroy(me));
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}
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static void test_remove_nothing(void)
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{
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int key;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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key = 3;
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multimap_put(me, &key, &key);
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key = 5;
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assert(!multimap_remove(me, &key, &key));
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assert(!multimap_destroy(me));
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}
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static void test_contains(void)
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{
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int key;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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key = 7;
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assert(!multimap_contains(me, &key));
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key = 3;
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multimap_put(me, &key, &key);
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key = 1;
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multimap_put(me, &key, &key);
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key = 5;
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multimap_put(me, &key, &key);
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key = 0;
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assert(!multimap_contains(me, &key));
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key = 1;
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assert(multimap_contains(me, &key));
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key = 2;
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assert(!multimap_contains(me, &key));
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key = 3;
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assert(multimap_contains(me, &key));
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key = 4;
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assert(!multimap_contains(me, &key));
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key = 5;
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assert(multimap_contains(me, &key));
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key = 6;
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assert(!multimap_contains(me, &key));
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assert(!multimap_destroy(me));
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}
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static void test_stress_add(void)
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{
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size_t count = 0;
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int flip = 0;
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int i;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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for (i = 1234; i < 82400; i++) {
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int num = i % 765;
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multimap_put(me, &num, &num);
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assert(multimap_contains(me, &num));
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count++;
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if (i == 1857 && !flip) {
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i *= -1;
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flip = 1;
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}
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}
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assert(count == multimap_size(me));
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assert(!multimap_destroy(me));
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}
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static void test_stress_remove(void)
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{
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int i;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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for (i = 8123; i < 12314; i += 3) {
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multimap_put(me, &i, &i);
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assert(multimap_contains(me, &i));
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}
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for (i = 13000; i > 8000; i--) {
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multimap_remove(me, &i, &i);
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assert(!multimap_contains(me, &i));
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}
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assert(!multimap_destroy(me));
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}
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static void test_unique_delete_one_child(multimap me)
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{
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int arr1[] = {2, 1, -2};
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int arr2[] = {1, 2, -1};
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int arr3[] = {3, 2, 4, 1, -2};
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int arr4[] = {3, 1, 4, 2, -1};
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int arr5[] = {3, 1, 4, 2, -4};
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int arr6[] = {2, 1, 3, 4, -3};
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int sz1 = sizeof(arr1) / sizeof(arr1[0]);
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int sz2 = sizeof(arr2) / sizeof(arr2[0]);
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int sz3 = sizeof(arr3) / sizeof(arr3[0]);
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int sz4 = sizeof(arr4) / sizeof(arr4[0]);
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int sz5 = sizeof(arr5) / sizeof(arr5[0]);
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int sz6 = sizeof(arr6) / sizeof(arr6[0]);
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mutation_order(me, arr1, sz1);
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multimap_clear(me);
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mutation_order(me, arr2, sz2);
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multimap_clear(me);
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mutation_order(me, arr3, sz3);
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multimap_clear(me);
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mutation_order(me, arr4, sz4);
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multimap_clear(me);
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mutation_order(me, arr5, sz5);
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multimap_clear(me);
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mutation_order(me, arr6, sz6);
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}
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static void test_unique_delete_two_children(multimap me)
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{
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int arr1[] = {2, 1, 3, -2};
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int arr2[] = {4, 2, 5, 1, 3, -2};
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int arr3[] = {2, 1, 4, 3, 5, -4};
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int sz1 = sizeof(arr1) / sizeof(arr1[0]);
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int sz2 = sizeof(arr2) / sizeof(arr2[0]);
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int sz3 = sizeof(arr3) / sizeof(arr3[0]);
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mutation_order(me, arr1, sz1);
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multimap_clear(me);
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mutation_order(me, arr2, sz2);
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multimap_clear(me);
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mutation_order(me, arr3, sz3);
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}
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static void test_unique_deletion_patterns(void)
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{
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
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compare_int);
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assert(me);
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test_unique_delete_one_child(me);
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multimap_clear(me);
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test_unique_delete_two_children(me);
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assert(!multimap_destroy(me));
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}
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static void test_override_value(void)
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{
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int key = 5;
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int value = 0xfacade;
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multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
|
|
compare_int);
|
|
assert(me);
|
|
multimap_get_start(me, &key);
|
|
assert(!multimap_get_next(&value, me));
|
|
assert(value == 0xfacade);
|
|
value = 17;
|
|
multimap_put(me, &key, &value);
|
|
value = 0xfacade;
|
|
multimap_get_start(me, &key);
|
|
assert(multimap_get_next(&value, me));
|
|
assert(value == 17);
|
|
value = 0xfacade;
|
|
assert(!multimap_get_next(&value, me));
|
|
assert(value == 0xfacade);
|
|
value = 97;
|
|
multimap_put(me, &key, &value);
|
|
value = 0xfacade;
|
|
multimap_get_start(me, &key);
|
|
assert(multimap_get_next(&value, me));
|
|
assert(value == 17);
|
|
assert(multimap_get_next(&value, me));
|
|
assert(value == 97);
|
|
value = 0xfacade;
|
|
assert(!multimap_get_next(&value, me));
|
|
assert(value == 0xfacade);
|
|
assert(multimap_size(me) == 2);
|
|
assert(!multimap_destroy(me));
|
|
}
|
|
|
|
static void test_multiple_operations(void)
|
|
{
|
|
int key = 5;
|
|
int value = 17;
|
|
multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
|
|
compare_int);
|
|
assert(me);
|
|
assert(multimap_count(me, &key) == 0);
|
|
assert(!multimap_remove_all(me, &key));
|
|
multimap_put(me, &key, &value);
|
|
multimap_put(me, &key, &value);
|
|
multimap_put(me, &key, &key);
|
|
multimap_put(me, &key, &key);
|
|
multimap_put(me, &key, &key);
|
|
assert(multimap_size(me) == 5);
|
|
key = 7;
|
|
multimap_put(me, &key, &key);
|
|
assert(multimap_size(me) == 6);
|
|
assert(multimap_count(me, &key) == 1);
|
|
key = 5;
|
|
assert(multimap_count(me, &key) == 5);
|
|
multimap_remove(me, &key, &key);
|
|
assert(multimap_count(me, &key) == 4);
|
|
multimap_remove_all(me, &key);
|
|
assert(multimap_size(me) == 1);
|
|
key = 7;
|
|
multimap_remove_all(me, &key);
|
|
assert(multimap_size(me) == 0);
|
|
multimap_put(me, &key, &value);
|
|
value = 23;
|
|
multimap_remove(me, &key, &value);
|
|
assert(multimap_size(me) == 1);
|
|
assert(!multimap_destroy(me));
|
|
}
|
|
|
|
#if STUB_MALLOC
|
|
static void test_init_out_of_memory(void)
|
|
{
|
|
fail_malloc = 1;
|
|
assert(!multimap_init(sizeof(int), sizeof(int), compare_int, compare_int));
|
|
}
|
|
#endif
|
|
|
|
#if STUB_MALLOC
|
|
static void test_put_root_out_of_memory(multimap me)
|
|
{
|
|
int key = 2;
|
|
fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
fail_malloc = 1;
|
|
delay_fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
}
|
|
#endif
|
|
|
|
#if STUB_MALLOC
|
|
static void test_put_on_left_out_of_memory(multimap me)
|
|
{
|
|
int key = 1;
|
|
fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
fail_malloc = 1;
|
|
delay_fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
}
|
|
#endif
|
|
|
|
#if STUB_MALLOC
|
|
static void test_put_on_right_out_of_memory(multimap me)
|
|
{
|
|
int key = 3;
|
|
fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
fail_malloc = 1;
|
|
delay_fail_malloc = 1;
|
|
assert(multimap_put(me, &key, &key) == -ENOMEM);
|
|
}
|
|
#endif
|
|
|
|
#if STUB_MALLOC
|
|
static void test_put_out_of_memory(void)
|
|
{
|
|
int key = 2;
|
|
multimap me = multimap_init(sizeof(int), sizeof(int), compare_int,
|
|
compare_int);
|
|
assert(me);
|
|
test_put_root_out_of_memory(me);
|
|
assert(multimap_put(me, &key, &key) == 0);
|
|
test_put_on_left_out_of_memory(me);
|
|
test_put_on_right_out_of_memory(me);
|
|
assert(!multimap_destroy(me));
|
|
}
|
|
#endif
|
|
|
|
struct big_object {
|
|
int n;
|
|
double d;
|
|
signed char c[8];
|
|
};
|
|
|
|
static int compare_big_object(const void *const one, const void *const two)
|
|
{
|
|
const struct big_object *const a = one;
|
|
const struct big_object *const b = two;
|
|
return a->n - b->n;
|
|
}
|
|
|
|
static int compare_dummy()
|
|
{
|
|
assert(0);
|
|
}
|
|
|
|
static void test_big_object(void)
|
|
{
|
|
int i;
|
|
multimap me = multimap_init(sizeof(int), sizeof(struct big_object),
|
|
compare_big_object, compare_dummy);
|
|
assert(me);
|
|
for (i = 0; i < 16; i++) {
|
|
int j;
|
|
struct big_object b;
|
|
b.n = INT_MIN + i;
|
|
b.d = i + 0.5;
|
|
for (j = 0; j < 8; j++) {
|
|
b.c[j] = (signed char) (SCHAR_MIN + i + j);
|
|
}
|
|
assert(multimap_put(me, &i, &b) == 0);
|
|
b.n = -1;
|
|
b.d = -1;
|
|
for (j = 0; j < 8; j++) {
|
|
b.c[j] = -1;
|
|
}
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
int j;
|
|
struct big_object b;
|
|
multimap_get_start(me, &i);
|
|
assert(multimap_get_next(&b, me) == 1);
|
|
assert(multimap_get_next(&b, me) == 0);
|
|
assert(b.n == INT_MIN + i);
|
|
assert(b.d == i + 0.5);
|
|
for (j = 0; j < 8; j++) {
|
|
assert(b.c[j] == SCHAR_MIN + i + j);
|
|
}
|
|
}
|
|
assert(!multimap_destroy(me));
|
|
}
|
|
|
|
void test_multimap(void)
|
|
{
|
|
test_invalid_init();
|
|
test_auto_balancing();
|
|
test_put_already_existing();
|
|
test_remove_nothing();
|
|
test_contains();
|
|
test_stress_add();
|
|
test_stress_remove();
|
|
test_unique_deletion_patterns();
|
|
test_override_value();
|
|
test_multiple_operations();
|
|
#if STUB_MALLOC
|
|
test_init_out_of_memory();
|
|
test_put_out_of_memory();
|
|
#endif
|
|
test_big_object();
|
|
}
|