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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2023 nghttp2 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 "nghttp2_ratelim_test.h"
#include <stdio.h>
#include "munit.h"
#include "nghttp2_ratelim.h"
static const MunitTest tests[] = {
munit_void_test(test_nghttp2_ratelim_update),
munit_void_test(test_nghttp2_ratelim_drain),
munit_test_end(),
};
const MunitSuite ratelim_suite = {
"/ratelim", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE,
};
void test_nghttp2_ratelim_update(void) {
nghttp2_ratelim rl;
nghttp2_ratelim_init(&rl, 1000, 21);
assert_uint64(1000, ==, rl.val);
assert_uint64(1000, ==, rl.burst);
assert_uint64(21, ==, rl.rate);
assert_uint64(0, ==, rl.tstamp);
nghttp2_ratelim_update(&rl, 999);
assert_uint64(1000, ==, rl.val);
assert_uint64(999, ==, rl.tstamp);
nghttp2_ratelim_drain(&rl, 100);
assert_uint64(900, ==, rl.val);
nghttp2_ratelim_update(&rl, 1000);
assert_uint64(921, ==, rl.val);
nghttp2_ratelim_update(&rl, 1002);
assert_uint64(963, ==, rl.val);
nghttp2_ratelim_update(&rl, 1004);
assert_uint64(1000, ==, rl.val);
assert_uint64(1004, ==, rl.tstamp);
/* timer skew */
nghttp2_ratelim_init(&rl, 1000, 21);
nghttp2_ratelim_update(&rl, 1);
assert_uint64(1000, ==, rl.val);
nghttp2_ratelim_update(&rl, 0);
assert_uint64(1000, ==, rl.val);
/* rate * duration overflow */
nghttp2_ratelim_init(&rl, 1000, 100);
nghttp2_ratelim_drain(&rl, 999);
assert_uint64(1, ==, rl.val);
nghttp2_ratelim_update(&rl, UINT64_MAX);
assert_uint64(1000, ==, rl.val);
/* val + rate * duration overflow */
nghttp2_ratelim_init(&rl, UINT64_MAX - 1, 2);
nghttp2_ratelim_update(&rl, 1);
assert_uint64(UINT64_MAX - 1, ==, rl.val);
}
void test_nghttp2_ratelim_drain(void) {
nghttp2_ratelim rl;
nghttp2_ratelim_init(&rl, 100, 7);
assert_int(-1, ==, nghttp2_ratelim_drain(&rl, 101));
assert_int(0, ==, nghttp2_ratelim_drain(&rl, 51));
assert_int(0, ==, nghttp2_ratelim_drain(&rl, 49));
assert_int(-1, ==, nghttp2_ratelim_drain(&rl, 1));
}
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