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Tatsuhiro Tsujikawa authored77bd2a3f
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ngtcp2_vec_test.c 9.79 KiB
/*
* ngtcp2
*
* Copyright (c) 2018 ngtcp2 contributors
*
* 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 "ngtcp2_vec_test.h"
#include <CUnit/CUnit.h>
#include "ngtcp2_vec.h"
#include "ngtcp2_test_helper.h"
void test_ngtcp2_vec_split(void) {
uint8_t nulldata[1024];
ngtcp2_vec a[16], b[16];
size_t acnt, bcnt;
ngtcp2_ssize nsplit;
/* No split occurs */
acnt = 1;
a[0].len = 135;
a[0].base = nulldata;
bcnt = 0;
b[0].len = 0;
b[0].base = NULL;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 135, 16);
CU_ASSERT(0 == nsplit);
CU_ASSERT(1 == acnt);
CU_ASSERT(135 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(0 == bcnt);
CU_ASSERT(0 == b[0].len);
CU_ASSERT(NULL == b[0].base);
/* Split once */
acnt = 1;
a[0].len = 135;
a[0].base = nulldata;
bcnt = 0;
b[0].len = 0;
b[0].base = NULL;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 87, 16);
CU_ASSERT(48 == nsplit);
CU_ASSERT(1 == acnt);
CU_ASSERT(87 == a[0].len); CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(48 == b[0].len);
CU_ASSERT(nulldata + 87 == b[0].base);
/* Multiple a vector; split at ngtcp2_vec boundary */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 0;
b[0].len = 0;
b[0].base = NULL;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 33, 16);
CU_ASSERT(89 == nsplit);
CU_ASSERT(1 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(89 == b[0].len);
CU_ASSERT(nulldata + 33 == b[0].base);
/* Multiple a vector; not split at ngtcp2_vec boundary */
acnt = 3;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
a[2].len = 211;
a[2].base = nulldata + 33 + 89;
bcnt = 0;
b[0].len = 0;
b[0].base = NULL;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 34, 16);
CU_ASSERT(88 + 211 == nsplit);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == a[1].len);
CU_ASSERT(nulldata + 33 == a[1].base);
CU_ASSERT(2 == bcnt);
CU_ASSERT(88 == b[0].len);
CU_ASSERT(nulldata + 34 == b[0].base);
CU_ASSERT(211 == b[1].len);
CU_ASSERT(nulldata + 34 + 88 == b[1].base);
/* Multiple a vector; split at ngtcp2_vec boundary; continuous
data */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 2;
b[0].len = 17;
b[0].base = nulldata + 33 + 89;
b[1].len = 3;
b[1].base = nulldata + 33 + 89 + 17;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 33, 16);
CU_ASSERT(89 == nsplit); CU_ASSERT(1 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(2 == bcnt);
CU_ASSERT(89 + 17 == b[0].len);
CU_ASSERT(nulldata + 33 == b[0].base);
CU_ASSERT(3 == b[1].len);
CU_ASSERT(nulldata + 33 + 89 + 17 == b[1].base);
/* Multiple a vector; not split at ngtcp2_vec boundary; continuous
data; nmove == 0 */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 2;
b[0].len = 17;
b[0].base = nulldata + 33 + 89;
b[1].len = 3;
b[1].base = nulldata + 33 + 89 + 17;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 34, 16);
CU_ASSERT(88 == nsplit);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == a[1].len);
CU_ASSERT(nulldata + 33 == a[1].base);
CU_ASSERT(2 == bcnt);
CU_ASSERT(88 + 17 == b[0].len);
CU_ASSERT(nulldata + 34 == b[0].base);
CU_ASSERT(3 == b[1].len);
CU_ASSERT(nulldata + 33 + 89 + 17 == b[1].base);
/* Multiple a vector; not split at ngtcp2_vec boundary; continuous
data */
acnt = 3;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
a[2].len = 211;
a[2].base = nulldata + 33 + 89;
bcnt = 2;
b[0].len = 17;
b[0].base = nulldata + 33 + 89 + 211;
b[1].len = 3;
b[1].base = nulldata + 33 + 89 + 211 + 17;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 34, 16);
CU_ASSERT(88 + 211 == nsplit);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == a[1].len);
CU_ASSERT(nulldata + 33 == a[1].base);
CU_ASSERT(3 == bcnt);
CU_ASSERT(88 == b[0].len);
CU_ASSERT(nulldata + 34 == b[0].base);
CU_ASSERT(211 + 17 == b[1].len);
CU_ASSERT(nulldata + 34 + 88 == b[1].base);
CU_ASSERT(3 == b[2].len);
CU_ASSERT(nulldata + 33 + 89 + 211 + 17 == b[2].base);
/* Multiple a vector; split at ngtcp2_vec boundary; not continuous data */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 2;
b[0].len = 17;
b[0].base = nulldata + 256;
b[1].len = 3;
b[1].base = nulldata + 256 + 17;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 33, 16);
CU_ASSERT(89 == nsplit);
CU_ASSERT(1 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(3 == bcnt);
CU_ASSERT(89 == b[0].len);
CU_ASSERT(nulldata + 33 == b[0].base);
CU_ASSERT(17 == b[1].len);
CU_ASSERT(nulldata + 256 == b[1].base);
CU_ASSERT(3 == b[2].len);
CU_ASSERT(nulldata + 256 + 17 == b[2].base);
/* maxcnt exceeded; continuous */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 1;
b[0].len = 17;
b[0].base = nulldata + 33 + 89;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 32, 1);
CU_ASSERT(-1 == nsplit);
/* maxcnt exceeded; not continuous */
acnt = 2;
a[0].len = 33;
a[0].base = nulldata;
a[1].len = 89;
a[1].base = nulldata + 33;
bcnt = 1;
b[0].len = 17;
b[0].base = nulldata + 256;
nsplit = ngtcp2_vec_split(a, &acnt, b, &bcnt, 33, 1);
CU_ASSERT(-1 == nsplit);
}
void test_ngtcp2_vec_merge(void) {
uint8_t nulldata[1024];
ngtcp2_vec a[16], b[16];
size_t acnt, bcnt;
size_t nmerged;
/* Merge one ngtcp2_vec completely */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 1; b[0].len = 11;
b[0].base = nulldata + 33;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 11, 16);
CU_ASSERT(11 == nmerged);
CU_ASSERT(1 == acnt);
CU_ASSERT(44 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(0 == bcnt);
/* Merge ngtcp2_vec partially */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 1;
b[0].len = 11;
b[0].base = nulldata + 33;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 10, 16);
CU_ASSERT(10 == nmerged);
CU_ASSERT(1 == acnt);
CU_ASSERT(43 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(1 == b[0].len);
CU_ASSERT(nulldata + 33 + 10 == b[0].base);
/* Merge one ngtcp2_vec completely; data is not continuous */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 1;
b[0].len = 11;
b[0].base = nulldata + 256;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 11, 16);
CU_ASSERT(11 == nmerged);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(11 == a[1].len);
CU_ASSERT(nulldata + 256 == a[1].base);
CU_ASSERT(0 == bcnt);
/* Merge ngtcp2_vec partially; data is not continuous */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 1;
b[0].len = 11;
b[0].base = nulldata + 256;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 10, 16);
CU_ASSERT(10 == nmerged);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(10 == a[1].len);
CU_ASSERT(nulldata + 256 == a[1].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(1 == b[0].len);
CU_ASSERT(nulldata + 256 + 10 == b[0].base);
/* Merge ends at the ngtcp2_vec boundary */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 2;
b[0].len = 11;
b[0].base = nulldata + 256;
b[1].len = 19;
b[1].base = nulldata + 256 + 11;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 11, 16);
CU_ASSERT(11 == nmerged);
CU_ASSERT(2 == acnt);
CU_ASSERT(33 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(11 == a[1].len);
CU_ASSERT(nulldata + 256 == a[1].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(19 == b[0].len);
CU_ASSERT(nulldata + 256 + 11 == b[0].base);
/* Merge occurs at the last object */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 2;
b[0].len = 11;
b[0].base = nulldata + 33;
b[1].len = 99;
b[1].base = nulldata + 33 + 11;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 100, 1);
CU_ASSERT(100 == nmerged);
CU_ASSERT(1 == acnt);
CU_ASSERT(133 == a[0].len);
CU_ASSERT(nulldata == a[0].base);
CU_ASSERT(1 == bcnt);
CU_ASSERT(10 == b[0].len);
CU_ASSERT(nulldata + 33 + 11 + 89 == b[0].base);
/* No merge occurs if object is full */
acnt = 1;
a[0].len = 33;
a[0].base = nulldata;
bcnt = 1;
b[0].len = 3;
b[0].base = nulldata + 100;
nmerged = ngtcp2_vec_merge(a, &acnt, b, &bcnt, 3, 1);
CU_ASSERT(0 == nmerged);
}