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testing/libc/wcstombs: Add testing application for wcstombs

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This application test the libc's `wcstombs` function for different
len sizes (bigger than the converted string, exactly the size of
it and smaller than it).
This commit is contained in:
Tiago Medicci
2025-02-05 10:39:19 -03:00
committed by CeDeROM
parent 5d7ff307c2
commit f139e56cd6
5 changed files with 350 additions and 0 deletions
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35
testing/libc/wcstombs/CMakeLists.txt Normal file
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# ##############################################################################
# apps/testing/libc/wcstombs/CMakeLists.txt
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more contributor
# license agreements. See the NOTICE file distributed with this work for
# additional information regarding copyright ownership. The ASF licenses this
# file to you under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
#
# ##############################################################################
if(CONFIG_TESTING_WCSTOMBS)
nuttx_add_application(
NAME
${CONFIG_TESTING_WCSTOMBS_PROGNAME}
PRIORITY
${CONFIG_TESTING_WCSTOMBS_PRIORITY}
STACKSIZE
${CONFIG_TESTING_WCSTOMBS_STACKSIZE}
MODULE
${CONFIG_TESTING_WCSTOMBS}
SRCS
wcstombs_main.c)
endif()

30
testing/libc/wcstombs/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config TESTING_WCSTOMBS
tristate "wcstombs() test"
default n
depends on LIBC_LOCALE
---help---
Enable wcstombs() test
if TESTING_WCSTOMBS
config TESTING_WCSTOMBS_PROGNAME
string "Program name"
default "wcstombs"
---help---
This is the name of the program that will be used when the NSH ELF
program is installed.
config TESTING_WCSTOMBS_PRIORITY
int "wcstombs task priority"
default 100
config TESTING_WCSTOMBS_STACKSIZE
int "wcstombs stack size"
default DEFAULT_TASK_STACKSIZE
endif

25
testing/libc/wcstombs/Make.defs Normal file
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############################################################################
# apps/testing/libc/wcstombs/Make.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
ifneq ($(CONFIG_TESTING_WCSTOMBS),)
CONFIGURED_APPS += $(APPDIR)/testing/libc/wcstombs
endif

36
testing/libc/wcstombs/Makefile Normal file
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############################################################################
# apps/testing/libc/wcstombs/Makefile
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(APPDIR)/Make.defs
# wcstombs() test built-in application info
PROGNAME = $(CONFIG_TESTING_WCSTOMBS_PROGNAME)
PRIORITY = $(CONFIG_TESTING_WCSTOMBS_PRIORITY)
STACKSIZE = $(CONFIG_TESTING_WCSTOMBS_STACKSIZE)
MODULE = $(CONFIG_TESTING_WCSTOMBS)
# wcstombs test files
MAINSRC = wcstombs_main.c
include $(APPDIR)/Application.mk

224
testing/libc/wcstombs/wcstombs_main.c Normal file
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/****************************************************************************
* apps/testing/libc/wcstombs/wcstombs_main.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <locale.h>
#include <stdint.h>
#include <string.h>
/****************************************************************************
* Public Functions
****************************************************************************/
int main(void)
{
/* Local variable declarations */
const wchar_t *src;
size_t dst_size;
char *dst;
size_t ret;
size_t i;
printf("wcstombs Test application:\n");
/* Set the locale to the user's default locale */
setlocale(LC_ALL, "");
/* Example wide character array (source) */
src = L"Hello, world!";
/* Calculate the required size for the dst buffer */
dst_size = wcstombs(NULL, src, 0) + 1; /* +1 for the null terminator */
dst = (char *)malloc(dst_size);
if (dst == NULL)
{
printf("ERROR: malloc failed.\n");
return EXIT_FAILURE;
}
printf("\nTest Scenario: len is bigger than the size of the converted "
"string. Expected the null-terminator at the end of the converted "
"string.\n");
/* Initialize dst with a known value (0xaa) */
memset(dst, 0xaa, dst_size);
/* Convert wide characters to multibyte characters */
ret = wcstombs(dst, src, dst_size);
/* Check if the conversion was successful */
if (ret == (size_t)-1)
{
printf("ERROR: wcstombs failed.\n");
free(dst);
return EXIT_FAILURE;
}
/* Print the return code */
printf("Return code: %zu\n", ret);
/* Print the dst buffer as an array of uint8_t elements */
printf("dst buffer (as uint8_t array): ");
for (i = 0; i < dst_size; i++) /* Include the null terminator in the output */
{
printf("%02x ", (uint8_t)dst[i]);
}
printf("\n");
/* Check if the dst value just after the return value is as expected */
if (dst[ret] == '\0')
{
printf("The character just after the return value is the null "
"terminating character.\n");
}
else
{
printf("The character just after the return value is not the expected "
"null-terminator (value: %02x). This is a bug!\n", dst[ret]);
free(dst);
return EXIT_FAILURE;
}
printf("\nTest Scenario: len is exactly the size of the converted string. "
"Do not expected the null-terminator at the end of the converted "
"string.\n");
/* Initialize dst with a known value (0xaa) */
memset(dst, 0xaa, dst_size);
/* Convert wide characters to multibyte characters */
ret = wcstombs(dst, src, dst_size - 1);
/* Check if the conversion was successful */
if (ret == (size_t)-1)
{
printf("ERROR: wcstombs failed.\n");
free(dst);
return EXIT_FAILURE;
}
/* Print the return code */
printf("Return code: %zu\n", ret);
/* Print the dst buffer as an array of uint8_t elements */
printf("dst buffer (as uint8_t array): ");
for (i = 0; i < dst_size; i++) /* Include the null terminator in the output */
{
printf("%02x ", (uint8_t)dst[i]);
}
printf("\n");
/* Check if the dst value just after the return value is as expected */
if ((uint8_t)dst[ret] == 0xaa)
{
printf("The character just after the return value is the expected "
"0xaa value. No null-terminator.\n");
}
else
{
printf("The character just after the return value is not the expected "
"0xaa (value: %02x). This is a bug!\n", dst[ret]);
free(dst);
return EXIT_FAILURE;
}
printf("\nTest Scenario: len is smaller than the size of the converted "
" string. Do not expected the null-terminator at the end of the "
"converted string.\n");
/* Initialize dst with a known value (0xaa) */
memset(dst, 0xaa, dst_size);
/* Convert wide characters to multibyte characters */
ret = wcstombs(dst, src, dst_size - 2);
/* Check if the conversion was successful */
if (ret == (size_t)-1)
{
printf("ERROR: wcstombs failed.\n");
free(dst);
return EXIT_FAILURE;
}
/* Print the return code */
printf("Return code: %zu\n", ret);
/* Print the dst buffer as an array of uint8_t elements */
printf("dst buffer (as uint8_t array): ");
for (i = 0; i < dst_size; i++) /* Include the null terminator in the output */
{
printf("%02x ", (uint8_t)dst[i]);
}
printf("\n");
/* Check if the dst value just after the return value is as expected */
if ((uint8_t)dst[ret] == 0xaa)
{
printf("The character just after the return value is the expected "
"0xaa value. No null-terminator.\n");
}
else
{
printf("The character just after the return value is not the expected "
"0xaa (value: %02x). This is a bug!\n", dst[ret]);
free(dst);
return EXIT_FAILURE;
}
/* Free the allocated memory */
free(dst);
return EXIT_SUCCESS;
}