224 lines
7.3 KiB
C
224 lines
7.3 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curlcheck.h"
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#include "llist.h"
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static struct Curl_llist llist;
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static struct Curl_llist llist_destination;
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static void test_Curl_llist_dtor(void *key, void *value)
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{
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/* used by the llist API, does nothing here */
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(void)key;
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(void)value;
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}
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static CURLcode unit_setup(void)
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{
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Curl_llist_init(&llist, test_Curl_llist_dtor);
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Curl_llist_init(&llist_destination, test_Curl_llist_dtor);
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return CURLE_OK;
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}
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static void unit_stop(void)
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{
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}
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UNITTEST_START
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{
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int unusedData_case1 = 1;
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int unusedData_case2 = 2;
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int unusedData_case3 = 3;
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struct Curl_llist_element case1_list;
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struct Curl_llist_element case2_list;
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struct Curl_llist_element case3_list;
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struct Curl_llist_element case4_list;
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struct Curl_llist_element *head;
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struct Curl_llist_element *element_next;
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struct Curl_llist_element *element_prev;
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struct Curl_llist_element *to_remove;
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size_t llist_size = Curl_llist_count(&llist);
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/**
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* testing llist_init
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* case 1:
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* list initiation
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* @assumptions:
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* 1: list size will be 0
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* 2: list head will be NULL
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* 3: list tail will be NULL
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* 4: list dtor will be NULL
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*/
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fail_unless(llist.size == 0, "list initial size should be zero");
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fail_unless(llist.head == NULL, "list head should initiate to NULL");
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fail_unless(llist.tail == NULL, "list tail should initiate to NULL");
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fail_unless(llist.dtor == test_Curl_llist_dtor,
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"list dtor should initiate to test_Curl_llist_dtor");
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/**
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* testing Curl_llist_insert_next
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* case 1:
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* list is empty
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* @assumptions:
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* 1: list size will be 1
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* 2: list head will hold the data "unusedData_case1"
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* 3: list tail will be the same as list head
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*/
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Curl_llist_insert_next(&llist, llist.head, &unusedData_case1, &case1_list);
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fail_unless(Curl_llist_count(&llist) == 1,
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"List size should be 1 after adding a new element");
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/* test that the list head data holds my unusedData */
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fail_unless(llist.head->ptr == &unusedData_case1,
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"head ptr should be first entry");
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/* same goes for the list tail */
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fail_unless(llist.tail == llist.head,
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"tail and head should be the same");
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/**
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* testing Curl_llist_insert_next
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* case 2:
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* list has 1 element, adding one element after the head
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* @assumptions:
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* 1: the element next to head should be our newly created element
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* 2: the list tail should be our newly created element
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*/
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Curl_llist_insert_next(&llist, llist.head,
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&unusedData_case3, &case3_list);
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fail_unless(llist.head->next->ptr == &unusedData_case3,
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"the node next to head is not getting set correctly");
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fail_unless(llist.tail->ptr == &unusedData_case3,
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"the list tail is not getting set correctly");
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/**
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* testing Curl_llist_insert_next
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* case 3:
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* list has >1 element, adding one element after "NULL"
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* @assumptions:
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* 1: the element next to head should be our newly created element
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* 2: the list tail should different from newly created element
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*/
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Curl_llist_insert_next(&llist, llist.head,
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&unusedData_case2, &case2_list);
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fail_unless(llist.head->next->ptr == &unusedData_case2,
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"the node next to head is not getting set correctly");
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/* better safe than sorry, check that the tail isn't corrupted */
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fail_unless(llist.tail->ptr != &unusedData_case2,
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"the list tail is not getting set correctly");
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/* unit tests for Curl_llist_remove */
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/**
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* case 1:
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* list has >1 element, removing head
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* @assumptions:
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* 1: list size will be decremented by one
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* 2: head will be the head->next
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* 3: "new" head's previous will be NULL
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*/
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head = llist.head;
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abort_unless(head, "llist.head is NULL");
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element_next = head->next;
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llist_size = Curl_llist_count(&llist);
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Curl_llist_remove(&llist, llist.head, NULL);
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fail_unless(Curl_llist_count(&llist) == (llist_size-1),
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"llist size not decremented as expected");
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fail_unless(llist.head == element_next,
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"llist new head not modified properly");
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abort_unless(llist.head, "llist.head is NULL");
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fail_unless(llist.head->prev == NULL,
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"new head previous not set to null");
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/**
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* case 2:
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* removing non head element, with list having >=2 elements
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* @setup:
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* 1: insert another element to the list to make element >=2
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* @assumptions:
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* 1: list size will be decremented by one ; tested
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* 2: element->previous->next will be element->next
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* 3: element->next->previous will be element->previous
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*/
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Curl_llist_insert_next(&llist, llist.head, &unusedData_case3,
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&case4_list);
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llist_size = Curl_llist_count(&llist);
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fail_unless(llist_size == 3, "should be 3 list members");
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to_remove = llist.head->next;
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abort_unless(to_remove, "to_remove is NULL");
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element_next = to_remove->next;
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element_prev = to_remove->prev;
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Curl_llist_remove(&llist, to_remove, NULL);
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fail_unless(element_prev->next == element_next,
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"element previous->next is not being adjusted");
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abort_unless(element_next, "element_next is NULL");
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fail_unless(element_next->prev == element_prev,
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"element next->previous is not being adjusted");
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/**
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* case 3:
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* removing the tail with list having >=1 element
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* @assumptions
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* 1: list size will be decremented by one ;tested
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* 2: element->previous->next will be element->next ;tested
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* 3: element->next->previous will be element->previous ;tested
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* 4: list->tail will be tail->previous
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*/
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to_remove = llist.tail;
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element_prev = to_remove->prev;
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Curl_llist_remove(&llist, to_remove, NULL);
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fail_unless(llist.tail == element_prev,
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"llist tail is not being adjusted when removing tail");
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/**
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* case 4:
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* removing head with list having 1 element
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* @assumptions:
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* 1: list size will be decremented by one ;tested
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* 2: list head will be null
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* 3: list tail will be null
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*/
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to_remove = llist.head;
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Curl_llist_remove(&llist, to_remove, NULL);
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fail_unless(llist.head == NULL,
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"llist head is not NULL while the llist is empty");
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fail_unless(llist.tail == NULL,
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"llist tail is not NULL while the llist is empty");
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Curl_llist_destroy(&llist, NULL);
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Curl_llist_destroy(&llist_destination, NULL);
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}
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UNITTEST_STOP
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