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/*------------------------------------------------------------------------------
*
* Copyright (c) 2011-2025, EURid vzw. All rights reserved.
* The YADIFA TM software product is provided under the BSD 3-clause license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of EURid nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*----------------------------------------------------------------------------*/
#include "yatest.h"
#include "yatest_stream.h"
#include <dnscore/dnscore.h>
#include <dnscore/pushback_input_stream.h>
#include <dnscore/bytearray_input_stream.h>
static input_stream_t bais;
static input_stream_t pbis;
static const char hello_world[] = "Hello World!";
static const size_t buffer_size = 65536;
static char *buffer = NULL;
static void init(int pbs)
{
dnscore_init();
bytearray_input_stream_init_const(&bais, yatest_lorem_ipsum, sizeof(yatest_lorem_ipsum));
pushback_input_stream_init(&pbis, &bais, pbs);
buffer = (char *)yatest_malloc(buffer_size);
}
static void finalise()
{
dnscore_finalize();
input_stream_close(&pbis);
}
static int pushback_test()
{
int ret;
init(sizeof(hello_world) - 1);
for(int i = sizeof(hello_world) - 2; i >= 0; --i)
{
if(!pushback_input_stream_push_back(&pbis, hello_world[i]))
{
yatest_err("pushback_input_stream_push_back rejected char %i", i);
return 1;
}
}
if(pushback_input_stream_push_back(&pbis, 'x'))
{
yatest_err("pushback_input_stream_push_back accepted oveflowing char");
return 1;
}
ret = input_stream_read(&pbis, buffer, sizeof(hello_world) - 1);
if(ret != sizeof(hello_world) - 1)
{
yatest_err("input_stream_read should have returned %i, returned %i instead", sizeof(hello_world) - 1, ret);
return 1;
}
if(memcmp(buffer, hello_world, sizeof(hello_world) - 1) != 0)
{
yatest_err("got:");
yatest_hexdump_err(buffer, buffer + sizeof(hello_world) - 1);
yatest_err("expected:");
yatest_hexdump_err(hello_world, hello_world + sizeof(hello_world) - 1);
return 1;
}
for(int i = sizeof(hello_world) - 2; i >= 0; --i)
{
if(!pushback_input_stream_push_back(&pbis, hello_world[i]))
{
yatest_err("pushback_input_stream_push_back rejected char %i", i);
return 1;
}
}
if(pushback_input_stream_push_back(&pbis, 'x'))
{
yatest_err("pushback_input_stream_push_back accepted oveflowing char");
return 1;
}
ret = input_stream_read(&pbis, buffer, sizeof(yatest_lorem_ipsum) + sizeof(hello_world) - 2);
if(memcmp(buffer, hello_world, sizeof(hello_world) - 1) != 0)
{
yatest_err("got:");
yatest_hexdump_err(buffer, buffer + sizeof(hello_world) - 1);
yatest_err("expected:");
yatest_hexdump_err(hello_world, hello_world + sizeof(hello_world) - 1);
return 1;
}
if(memcmp(buffer + sizeof(hello_world) - 1, yatest_lorem_ipsum, sizeof(yatest_lorem_ipsum) - 1) != 0)
{
yatest_err("got:");
yatest_hexdump_err(buffer + sizeof(hello_world), buffer + sizeof(hello_world) + sizeof(yatest_lorem_ipsum) - 1);
yatest_err("expected:");
yatest_hexdump_err(yatest_lorem_ipsum, yatest_lorem_ipsum + sizeof(yatest_lorem_ipsum) - 1);
return 1;
}
finalise();
return 0;
}
YATEST_TABLE_BEGIN
YATEST(pushback_test)
YATEST_TABLE_END
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