nghttp2/tests/nghttp2_pq_test.c

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/*
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* nghttp2 - HTTP/2 C Library
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*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nghttp2_pq_test.h"
#include <CUnit/CUnit.h>
#include "nghttp2_pq.h"
typedef struct {
nghttp2_pq_entry ent;
const char *s;
} string_entry;
static string_entry *string_entry_new(const char *s) {
nghttp2_mem *mem;
string_entry *ent;
mem = nghttp2_mem_default();
ent = nghttp2_mem_malloc(mem, sizeof(string_entry));
ent->s = s;
return ent;
}
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static void string_entry_del(string_entry *ent) { free(ent); }
static int pq_less(const void *lhs, const void *rhs) {
return strcmp(((string_entry *)lhs)->s, ((string_entry *)rhs)->s) < 0;
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}
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void test_nghttp2_pq(void) {
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int i;
nghttp2_pq pq;
string_entry *top;
nghttp2_pq_init(&pq, pq_less, nghttp2_mem_default());
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CU_ASSERT(nghttp2_pq_empty(&pq));
CU_ASSERT(0 == nghttp2_pq_size(&pq));
CU_ASSERT(0 == nghttp2_pq_push(&pq, &string_entry_new("foo")->ent));
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CU_ASSERT(0 == nghttp2_pq_empty(&pq));
CU_ASSERT(1 == nghttp2_pq_size(&pq));
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("foo", top->s) == 0);
CU_ASSERT(0 == nghttp2_pq_push(&pq, &string_entry_new("bar")->ent));
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("bar", top->s) == 0);
CU_ASSERT(0 == nghttp2_pq_push(&pq, &string_entry_new("baz")->ent));
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("bar", top->s) == 0);
CU_ASSERT(0 == nghttp2_pq_push(&pq, &string_entry_new("C")->ent));
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CU_ASSERT(4 == nghttp2_pq_size(&pq));
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("C", top->s) == 0);
string_entry_del(top);
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nghttp2_pq_pop(&pq);
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CU_ASSERT(3 == nghttp2_pq_size(&pq));
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("bar", top->s) == 0);
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nghttp2_pq_pop(&pq);
string_entry_del(top);
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("baz", top->s) == 0);
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nghttp2_pq_pop(&pq);
string_entry_del(top);
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(strcmp("foo", top->s) == 0);
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nghttp2_pq_pop(&pq);
string_entry_del(top);
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CU_ASSERT(nghttp2_pq_empty(&pq));
CU_ASSERT(0 == nghttp2_pq_size(&pq));
CU_ASSERT(NULL == nghttp2_pq_top(&pq));
/* Add bunch of entry to see realloc works */
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for (i = 0; i < 10000; ++i) {
CU_ASSERT(0 == nghttp2_pq_push(&pq, &string_entry_new("foo")->ent));
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CU_ASSERT((size_t)(i + 1) == nghttp2_pq_size(&pq));
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}
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for (i = 10000; i > 0; --i) {
top = (string_entry *)nghttp2_pq_top(&pq);
CU_ASSERT(NULL != top);
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nghttp2_pq_pop(&pq);
string_entry_del(top);
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CU_ASSERT((size_t)(i - 1) == nghttp2_pq_size(&pq));
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}
nghttp2_pq_free(&pq);
}
typedef struct {
nghttp2_pq_entry ent;
int key;
int val;
} node;
static int node_less(const void *lhs, const void *rhs) {
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node *ln = (node *)lhs;
node *rn = (node *)rhs;
return ln->key < rn->key;
}
static int node_update(nghttp2_pq_entry *item, void *arg) {
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node *nd = (node *)item;
(void)arg;
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if ((nd->key % 2) == 0) {
nd->key *= -1;
return 1;
} else {
return 0;
}
}
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void test_nghttp2_pq_update(void) {
nghttp2_pq pq;
node nodes[10];
int i;
node *nd;
int ans[] = {-8, -6, -4, -2, 0, 1, 3, 5, 7, 9};
nghttp2_pq_init(&pq, node_less, nghttp2_mem_default());
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for (i = 0; i < (int)(sizeof(nodes) / sizeof(nodes[0])); ++i) {
nodes[i].key = i;
nodes[i].val = i;
nghttp2_pq_push(&pq, &nodes[i].ent);
}
nghttp2_pq_update(&pq, node_update, NULL);
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for (i = 0; i < (int)(sizeof(nodes) / sizeof(nodes[0])); ++i) {
nd = (node *)nghttp2_pq_top(&pq);
CU_ASSERT(ans[i] == nd->key);
nghttp2_pq_pop(&pq);
}
nghttp2_pq_free(&pq);
}
static void push_nodes(nghttp2_pq *pq, node *dest, size_t n) {
size_t i;
for (i = 0; i < n; ++i) {
dest[i].key = (int)i;
dest[i].val = (int)i;
nghttp2_pq_push(pq, &dest[i].ent);
}
}
static void check_nodes(nghttp2_pq *pq, size_t n, int *ans_key, int *ans_val) {
size_t i;
for (i = 0; i < n; ++i) {
node *nd = (node *)nghttp2_pq_top(pq);
CU_ASSERT(ans_key[i] == nd->key);
CU_ASSERT(ans_val[i] == nd->val);
nghttp2_pq_pop(pq);
}
}
void test_nghttp2_pq_remove(void) {
nghttp2_pq pq;
node nodes[10];
int ans_key1[] = {1, 2, 3, 4, 5};
int ans_val1[] = {1, 2, 3, 4, 5};
int ans_key2[] = {0, 1, 2, 4, 5};
int ans_val2[] = {0, 1, 2, 4, 5};
int ans_key3[] = {0, 1, 2, 3, 4};
int ans_val3[] = {0, 1, 2, 3, 4};
nghttp2_pq_init(&pq, node_less, nghttp2_mem_default());
push_nodes(&pq, nodes, 6);
nghttp2_pq_remove(&pq, &nodes[0].ent);
check_nodes(&pq, 5, ans_key1, ans_val1);
nghttp2_pq_free(&pq);
nghttp2_pq_init(&pq, node_less, nghttp2_mem_default());
push_nodes(&pq, nodes, 6);
nghttp2_pq_remove(&pq, &nodes[3].ent);
check_nodes(&pq, 5, ans_key2, ans_val2);
nghttp2_pq_free(&pq);
nghttp2_pq_init(&pq, node_less, nghttp2_mem_default());
push_nodes(&pq, nodes, 6);
nghttp2_pq_remove(&pq, &nodes[5].ent);
check_nodes(&pq, 5, ans_key3, ans_val3);
nghttp2_pq_free(&pq);
}