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/*
* Fifo8 tests
*
* Copyright 2024 Mark Cave-Ayland
*
* Authors:
* Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "migration/vmstate.h"
#include "qemu/fifo8.h"
const VMStateInfo vmstate_info_uint32;
const VMStateInfo vmstate_info_buffer;
static void test_fifo8_pop_bufptr_wrap(void)
{
Fifo8 fifo;
uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: [ . . . . . . . . ]
*/
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
/*
* head --v ]-- tail used = 4
* FIFO: [ 1 2 3 4 . . . . ]
*/
buf = fifo8_pop_bufptr(&fifo, 2, &count);
/*
* head --v ]-- tail used = 2
* FIFO: [ 1 2 3 4 . . . . ]
* buf --^ count = 2
*/
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
/*
* tail --]v-- head used = 8
* FIFO: [ 9 a 3 4 5 6 7 8 ]
*/
buf = fifo8_pop_bufptr(&fifo, 8, &count);
/*
* head --v ]-- tail used = 2
* FIFO: [ 9 a 3 4 5 6 7 8 ]
* buf --^ count = 6
*/
g_assert(count == 6);
g_assert(buf[0] == 0x3 && buf[1] == 0x4 && buf[2] == 0x5 &&
buf[3] == 0x6 && buf[4] == 0x7 && buf[5] == 0x8);
g_assert(fifo8_num_used(&fifo) == 2);
fifo8_destroy(&fifo);
}
static void test_fifo8_pop_bufptr(void)
{
Fifo8 fifo;
uint8_t data_in[] = { 0x1, 0x2, 0x3, 0x4 };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: [ . . . . . . . . ]
*/
fifo8_push_all(&fifo, data_in, sizeof(data_in));
/*
* head --v ]-- tail used = 4
* FIFO: [ 1 2 3 4 . . . . ]
*/
buf = fifo8_pop_bufptr(&fifo, 2, &count);
/*
* head --v ]-- tail used = 2
* FIFO: [ 1 2 3 4 . . . . ]
* buf --^ count = 2
*/
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
g_assert(fifo8_num_used(&fifo) == 2);
fifo8_destroy(&fifo);
}
static void test_fifo8_peek_bufptr_wrap(void)
{
Fifo8 fifo;
uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
buf = fifo8_peek_bufptr(&fifo, 2, &count);
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
* buf: [ 1 2 ] count = 2
*/
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
buf = fifo8_pop_bufptr(&fifo, 2, &count);
/*
* head --v ]-- tail used = 2
* FIFO: { 1 2 3 4 . . . . }
* buf: [ 1 2 ] count = 2
*/
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
/*
* tail ---]v-- head used = 8
* FIFO: { 9 a 3 4 5 6 7 8 }
*/
buf = fifo8_peek_bufptr(&fifo, 8, &count);
/*
* tail --]v-- head used = 8
* FIFO: { 9 a 3 4 5 6 7 8 }
* buf: [ 3 4 5 6 7 8 ] count = 6
*/
g_assert(count == 6);
g_assert(buf[0] == 0x3 && buf[1] == 0x4 && buf[2] == 0x5 &&
buf[3] == 0x6 && buf[4] == 0x7 && buf[5] == 0x8);
g_assert(fifo8_num_used(&fifo) == 8);
fifo8_destroy(&fifo);
}
static void test_fifo8_peek_bufptr(void)
{
Fifo8 fifo;
uint8_t data_in[] = { 0x1, 0x2, 0x3, 0x4 };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in, sizeof(data_in));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
buf = fifo8_peek_bufptr(&fifo, 2, &count);
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
* buf: [ 1 2 ] count = 2
*/
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
g_assert(fifo8_num_used(&fifo) == 4);
fifo8_destroy(&fifo);
}
static void test_fifo8_pop_buf_wrap(void)
{
Fifo8 fifo;
uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc };
uint8_t data_out[4];
int count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
fifo8_pop_buf(&fifo, NULL, 4);
/*
* tail --]v-- head used = 0
* FIFO: [ 1 2 3 4 . . . . ]
*/
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
/*
* tail --]v-- head used = 8
* FIFO: { 9 a b c 5 6 7 8 }
*/
count = fifo8_pop_buf(&fifo, NULL, 4);
/*
* head --v ]-- tail used = 4
* FIFO: { 9 a b c 5 6 7 8 }
*/
g_assert(count == 4);
count = fifo8_pop_buf(&fifo, data_out, 4);
/*
* tail --]v-- head used = 0
* FIFO: { 9 a b c 5 6 7 8 }
*/
g_assert(count == 4);
g_assert(data_out[0] == 0x9 && data_out[1] == 0xa &&
data_out[2] == 0xb && data_out[3] == 0xc);
g_assert(fifo8_num_used(&fifo) == 0);
fifo8_destroy(&fifo);
}
static void test_fifo8_pop_buf(void)
{
Fifo8 fifo;
uint8_t data_in[] = { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8 };
uint8_t data_out[] = { 0xff, 0xff, 0xff, 0xff };
int count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in, sizeof(data_in));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
count = fifo8_pop_buf(&fifo, NULL, 4);
/*
* tail --]v-- head used = 0
* FIFO: { 1 2 3 4 . . . . }
*/
g_assert(count == 4);
count = fifo8_pop_buf(&fifo, data_out, 4);
g_assert(data_out[0] == 0x5 && data_out[1] == 0x6 &&
data_out[2] == 0x7 && data_out[3] == 0x8);
g_assert(fifo8_num_used(&fifo) == 0);
fifo8_destroy(&fifo);
}
static void test_fifo8_peek_buf_wrap(void)
{
Fifo8 fifo;
uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc };
uint8_t data_out[8];
int count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
fifo8_pop_buf(&fifo, NULL, 4);
/*
* tail --]v-- head used = 0
* FIFO: { 1 2 3 4 . . . . }
*/
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
/*
* tail --]v-- head used = 8
* FIFO: { 9 a b c 5 6 7 8 }
*/
count = fifo8_peek_buf(&fifo, NULL, 4);
g_assert(count == 4);
count = fifo8_peek_buf(&fifo, data_out, 4);
/*
* tail --]v-- head used = 8
* FIFO: { 9 a b c 5 6 7 8 }
* buf: [ 5 6 7 8 ] count = 4
*/
g_assert(count == 4);
g_assert(data_out[0] == 0x5 && data_out[1] == 0x6 &&
data_out[2] == 0x7 && data_out[3] == 0x8);
count = fifo8_peek_buf(&fifo, data_out, 8);
/*
* tail --]v-- head used = 8
* FIFO: { 9 a b c 5 6 7 8 }
* buf: [ 5 6 7 8 9 a b c ] count = 8
*/
g_assert(count == 8);
g_assert(data_out[0] == 0x5 && data_out[1] == 0x6 &&
data_out[2] == 0x7 && data_out[3] == 0x8);
g_assert(data_out[4] == 0x9 && data_out[5] == 0xa &&
data_out[6] == 0xb && data_out[7] == 0xc);
g_assert(fifo8_num_used(&fifo) == 8);
fifo8_destroy(&fifo);
}
static void test_fifo8_peek_buf(void)
{
Fifo8 fifo;
uint8_t data_in[] = { 0x1, 0x2, 0x3, 0x4 };
uint8_t data_out[] = { 0xff, 0xff, 0xff, 0xff };
int count;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push_all(&fifo, data_in, sizeof(data_in));
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
*/
count = fifo8_peek_buf(&fifo, NULL, 4);
g_assert(count == 4);
g_assert(data_out[0] == 0xff && data_out[1] == 0xff &&
data_out[2] == 0xff && data_out[3] == 0xff);
count = fifo8_peek_buf(&fifo, data_out, 4);
/*
* head --v ]-- tail used = 4
* FIFO: { 1 2 3 4 . . . . }
* buf: [ 1 2 3 4 ] count = 4
*/
g_assert(count == 4);
g_assert(data_out[0] == 0x1 && data_out[1] == 0x2 &&
data_out[2] == 0x3 && data_out[3] == 0x4);
g_assert(fifo8_num_used(&fifo) == 4);
fifo8_destroy(&fifo);
}
static void test_fifo8_peek(void)
{
Fifo8 fifo;
uint8_t c;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push(&fifo, 0x1);
/*
* head --v]-- tail used = 1
* FIFO: { 1 . . . . . . . }
*/
fifo8_push(&fifo, 0x2);
/*
* head --v ]-- tail used = 2
* FIFO: { 1 2 . . . . . . }
*/
c = fifo8_peek(&fifo);
g_assert(c == 0x1);
fifo8_pop(&fifo);
/*
* head --v]-- tail used = 1
* FIFO: { 1 2 . . . . . . }
*/
c = fifo8_peek(&fifo);
g_assert(c == 0x2);
g_assert(fifo8_num_used(&fifo) == 1);
fifo8_destroy(&fifo);
}
static void test_fifo8_pushpop(void)
{
Fifo8 fifo;
uint8_t c;
fifo8_create(&fifo, 8);
/*
* head --v-- tail used = 0
* FIFO: { . . . . . . . . }
*/
fifo8_push(&fifo, 0x1);
/*
* head --v]-- tail used = 1
* FIFO: { 1 . . . . . . . }
*/
fifo8_push(&fifo, 0x2);
/*
* head --v ]-- tail used = 2
* FIFO: { 1 2 . . . . . . }
*/
c = fifo8_pop(&fifo);
/*
* head --v]-- tail used = 1
* FIFO: { 1 2 . . . . . . }
*/
g_assert(c == 0x1);
c = fifo8_pop(&fifo);
/*
* tail --]v-- head used = 0
* FIFO: { 1 2 . . . . . . }
*/
g_assert(c == 0x2);
g_assert(fifo8_num_used(&fifo) == 0);
fifo8_destroy(&fifo);
}
int main(int argc, char *argv[])
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/fifo8/pushpop", test_fifo8_pushpop);
g_test_add_func("/fifo8/peek", test_fifo8_peek);
g_test_add_func("/fifo8/peek_buf", test_fifo8_peek_buf);
g_test_add_func("/fifo8/peek_buf_wrap", test_fifo8_peek_buf_wrap);
g_test_add_func("/fifo8/pop_buf", test_fifo8_pop_buf);
g_test_add_func("/fifo8/pop_buf_wrap", test_fifo8_pop_buf_wrap);
g_test_add_func("/fifo8/peek_bufptr", test_fifo8_peek_bufptr);
g_test_add_func("/fifo8/peek_bufptr_wrap", test_fifo8_peek_bufptr_wrap);
g_test_add_func("/fifo8/pop_bufptr", test_fifo8_pop_bufptr);
g_test_add_func("/fifo8/pop_bufptr_wrap", test_fifo8_pop_bufptr_wrap);
return g_test_run();
}