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tests/unit: add test-fifo unit test

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This tests the Fifo8 implementation basic operations as well as
testing the *_bufptr() in-place buffer functions and the newer
*_buf() functions that also handle wraparound of the internal
FIFO buffer.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-10-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Mark Cave-Ayland 2024-08-28 13:22:58 +01:00 committed by Philippe Mathieu-Daudé
parent 570bf14394
commit f2f262c3f9
2 changed files with 257 additions and 0 deletions
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1
tests/unit/meson.build
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@ -47,6 +47,7 @@ tests = {
'test-logging': [],
'test-qapi-util': [],
'test-interval-tree': [],
'test-fifo': [],
}
if have_system or have_tools

256
tests/unit/test-fifo.c Normal file
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@ -0,0 +1,256 @@
/*
* 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, 0x1, 0x2 };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
buf = fifo8_pop_bufptr(&fifo, 2, &count);
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
buf = fifo8_pop_bufptr(&fifo, 8, &count);
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);
fifo8_push_all(&fifo, data_in, sizeof(data_in));
buf = fifo8_pop_bufptr(&fifo, 2, &count);
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, 0x1, 0x2 };
const uint8_t *buf;
uint32_t count;
fifo8_create(&fifo, 8);
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
buf = fifo8_peek_bufptr(&fifo, 2, &count);
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
buf = fifo8_pop_bufptr(&fifo, 2, &count);
g_assert(count == 2);
g_assert(buf[0] == 0x1 && buf[1] == 0x2);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
buf = fifo8_peek_bufptr(&fifo, 8, &count);
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);
fifo8_push_all(&fifo, data_in, sizeof(data_in));
buf = fifo8_peek_bufptr(&fifo, 2, &count);
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, 0x1, 0x2, 0x3, 0x4 };
uint8_t data_out[4];
int count;
fifo8_create(&fifo, 8);
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
fifo8_pop_buf(&fifo, NULL, 4);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
count = fifo8_pop_buf(&fifo, NULL, 4);
g_assert(count == 4);
count = fifo8_pop_buf(&fifo, data_out, 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) == 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);
fifo8_push_all(&fifo, data_in, sizeof(data_in));
count = fifo8_pop_buf(&fifo, NULL, 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, 0x1, 0x2, 0x3, 0x4 };
uint8_t data_out[4];
int count;
fifo8_create(&fifo, 8);
fifo8_push_all(&fifo, data_in1, sizeof(data_in1));
fifo8_pop_buf(&fifo, NULL, 4);
fifo8_push_all(&fifo, data_in2, sizeof(data_in2));
count = fifo8_peek_buf(&fifo, NULL, 4);
g_assert(count == 4);
count = fifo8_peek_buf(&fifo, data_out, 4);
g_assert(count == 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) == 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);
fifo8_push_all(&fifo, data_in, sizeof(data_in));
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);
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);
fifo8_push(&fifo, 0x1);
fifo8_push(&fifo, 0x2);
c = fifo8_peek(&fifo);
g_assert(c == 0x1);
fifo8_pop(&fifo);
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);
fifo8_push(&fifo, 0x1);
fifo8_push(&fifo, 0x2);
c = fifo8_pop(&fifo);
g_assert(c == 0x1);
c = fifo8_pop(&fifo);
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();
}