mirror of
https://gitlab.nic.cz/labs/bird.git
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148 lines
2.8 KiB
C
148 lines
2.8 KiB
C
/*
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* BIRD Library -- Buffer Tests
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*
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* (c) 2015 CZ.NIC z.s.p.o.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include <stdlib.h>
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#include "test/birdtest.h"
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#include "sysdep/config.h"
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#include "lib/resource.h"
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#include "lib/buffer.h"
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#define MAX_NUM 33
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typedef BUFFER(int) buffer_int;
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static int expected[MAX_NUM];
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static buffer_int buffer;
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static struct pool *buffer_pool;
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static void
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show_buf(buffer_int *b)
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{
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int i;
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bt_debug(".used = %d, .size = %d\n", b->used, b->size);
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for (i = 0; i < b->used; i++)
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bt_debug(" .data[%3d] = %-16d expected %-16d %s\n", i, b->data[i], expected[i], (b->data[i] == expected[i] ? "OK" : "FAIL!"));
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}
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static void
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fill_expected_array(void)
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{
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int i;
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for (i = 0; i < MAX_NUM; i++)
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expected[i] = bt_random();
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}
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static void
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init_buffer(void)
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{
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resource_init();
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buffer_pool = &root_pool;
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BUFFER_INIT(buffer, buffer_pool, MAX_NUM);
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}
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static int
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is_buffer_as_expected(buffer_int *b)
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{
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show_buf(b);
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int i;
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for (i = 0; i < MAX_NUM; i++)
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bt_assert(b->data[i] == expected[i]);
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return 1;
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}
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static int
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t_buffer_push(void)
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{
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int i;
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init_buffer();
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fill_expected_array();
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for (i = 0; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i];
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is_buffer_as_expected(&buffer);
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return BT_SUCCESS;
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}
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static int
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t_buffer_pop(void)
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{
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int i;
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init_buffer();
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fill_expected_array();
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/* POP a half of elements */
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for (i = 0; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i];
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for (i = MAX_NUM-1; i >= MAX_NUM/2; i--)
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BUFFER_POP(buffer);
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for (i = MAX_NUM/2; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i] = bt_random();
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is_buffer_as_expected(&buffer);
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/* POP all of elements */
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for (i = MAX_NUM-1; i >= 0; i--)
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BUFFER_POP(buffer);
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bt_assert(buffer.used == 0);
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for (i = 0; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i];
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is_buffer_as_expected(&buffer);
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return BT_SUCCESS;
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}
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static int
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t_buffer_resize(void)
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{
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int i;
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init_buffer();
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BUFFER_INIT(buffer, buffer_pool, 0);
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fill_expected_array();
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for (i = 0; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i];
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is_buffer_as_expected(&buffer);
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bt_assert(buffer.size >= MAX_NUM);
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return BT_SUCCESS;
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}
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static int
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t_buffer_flush(void)
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{
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int i;
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init_buffer();
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fill_expected_array();
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for (i = 0; i < MAX_NUM; i++)
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BUFFER_PUSH(buffer) = expected[i];
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BUFFER_FLUSH(buffer);
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bt_assert(buffer.used == 0);
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return BT_SUCCESS;
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}
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int
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main(int argc, char *argv[])
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{
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bt_init(argc, argv);
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bt_test_suite(t_buffer_push, "Pushing new elements");
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bt_test_suite(t_buffer_pop, "Fill whole buffer (PUSH), a half of elements POP and PUSH new elements");
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bt_test_suite(t_buffer_resize, "Init a small buffer and try overfill");
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bt_test_suite(t_buffer_flush, "Fill and flush all elements");
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return bt_end();
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}
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