diff options
Diffstat (limited to '3rdparty/expat/tests/common.c')
-rw-r--r-- | 3rdparty/expat/tests/common.c | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/3rdparty/expat/tests/common.c b/3rdparty/expat/tests/common.c new file mode 100644 index 00000000000..b158385f56a --- /dev/null +++ b/3rdparty/expat/tests/common.c @@ -0,0 +1,327 @@ +/* Commonly used functions for the Expat test suite + __ __ _ + ___\ \/ /_ __ __ _| |_ + / _ \\ /| '_ \ / _` | __| + | __// \| |_) | (_| | |_ + \___/_/\_\ .__/ \__,_|\__| + |_| XML parser + + Copyright (c) 2001-2006 Fred L. Drake, Jr. <fdrake@users.sourceforge.net> + Copyright (c) 2003 Greg Stein <gstein@users.sourceforge.net> + Copyright (c) 2005-2007 Steven Solie <steven@solie.ca> + Copyright (c) 2005-2012 Karl Waclawek <karl@waclawek.net> + Copyright (c) 2016-2025 Sebastian Pipping <sebastian@pipping.org> + Copyright (c) 2017-2022 Rhodri James <rhodri@wildebeest.org.uk> + Copyright (c) 2017 Joe Orton <jorton@redhat.com> + Copyright (c) 2017 José Gutiérrez de la Concha <jose@zeroc.com> + Copyright (c) 2018 Marco Maggi <marco.maggi-ipsu@poste.it> + Copyright (c) 2019 David Loffredo <loffredo@steptools.com> + Copyright (c) 2020 Tim Gates <tim.gates@iress.com> + Copyright (c) 2021 Donghee Na <donghee.na@python.org> + Copyright (c) 2023-2024 Sony Corporation / Snild Dolkow <snild@sony.com> + Licensed under the MIT license: + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to permit + persons to whom the Software is furnished to do so, subject to the + following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN + NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#include <assert.h> +#include <errno.h> +#include <stdint.h> // for SIZE_MAX +#include <stdio.h> +#include <string.h> + +#include "expat_config.h" +#include "expat.h" +#include "internal.h" +#include "chardata.h" +#include "minicheck.h" +#include "common.h" +#include "handlers.h" + +/* Common test data */ + +const char *long_character_data_text + = "<?xml version='1.0' encoding='iso-8859-1'?><s>" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "</s>"; + +const char *long_cdata_text + = "<s><![CDATA[" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "012345678901234567890123456789012345678901234567890123456789" + "]]></s>"; + +/* Having an element name longer than 1024 characters exercises some + * of the pool allocation code in the parser that otherwise does not + * get executed. The count at the end of the line is the number of + * characters (bytes) in the element name by that point.x + */ +const char *get_buffer_test_text + = "<documentwitharidiculouslylongelementnametotease" /* 0x030 */ + "aparticularcorneroftheallocationinXML_GetBuffers" /* 0x060 */ + "othatwecanimprovethecoverageyetagain012345678901" /* 0x090 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x0c0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x0f0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x120 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x150 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x180 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x1b0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x1e0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x210 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x240 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x270 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x2a0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x2d0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x300 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x330 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x360 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x390 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x3c0 */ + "123456789abcdef0123456789abcdef0123456789abcdef0" /* 0x3f0 */ + "123456789abcdef0123456789abcdef0123456789>\n<ef0"; /* 0x420 */ + +/* Test control globals */ + +/* Used as the "resumable" parameter to XML_StopParser by some tests */ +XML_Bool g_resumable = XML_FALSE; + +/* Used to control abort checks in some tests */ +XML_Bool g_abortable = XML_FALSE; + +/* Used to control _XML_Parse_SINGLE_BYTES() chunk size */ +int g_chunkSize = 1; + +/* Common test functions */ + +void +tcase_add_test__ifdef_xml_dtd(TCase *tc, tcase_test_function test) { +#ifdef XML_DTD + tcase_add_test(tc, test); +#else + UNUSED_P(tc); + UNUSED_P(test); +#endif +} + +void +tcase_add_test__if_xml_ge(TCase *tc, tcase_test_function test) { +#if XML_GE == 1 + tcase_add_test(tc, test); +#else + UNUSED_P(tc); + UNUSED_P(test); +#endif +} + +void +basic_teardown(void) { + if (g_parser != NULL) { + XML_ParserFree(g_parser); + g_parser = NULL; + } +} + +/* Generate a failure using the parser state to create an error message; + this should be used when the parser reports an error we weren't + expecting. +*/ +void +_xml_failure(XML_Parser parser, const char *file, int line) { + char buffer[1024]; + enum XML_Error err = XML_GetErrorCode(parser); + snprintf(buffer, sizeof(buffer), + " %d: %" XML_FMT_STR " (line %" XML_FMT_INT_MOD + "u, offset %" XML_FMT_INT_MOD "u)\n reported from %s, line %d\n", + err, XML_ErrorString(err), XML_GetCurrentLineNumber(parser), + XML_GetCurrentColumnNumber(parser), file, line); + _fail(file, line, buffer); +} + +enum XML_Status +_XML_Parse_SINGLE_BYTES(XML_Parser parser, const char *s, int len, + int isFinal) { + // This ensures that tests have to run pathological parse cases + // (e.g. when `s` is NULL) against plain XML_Parse rather than + // chunking _XML_Parse_SINGLE_BYTES. + assert((parser != NULL) && (s != NULL) && (len >= 0)); + const int chunksize = g_chunkSize; + if (chunksize > 0) { + // parse in chunks of `chunksize` bytes as long as not exhausting + for (; len > chunksize; len -= chunksize, s += chunksize) { + enum XML_Status res = XML_Parse(parser, s, chunksize, XML_FALSE); + if (res != XML_STATUS_OK) { + if ((res == XML_STATUS_SUSPENDED) && (len > chunksize)) { + fail("Use of function _XML_Parse_SINGLE_BYTES with a chunk size " + "greater than 0 (from g_chunkSize) does not work well with " + "suspension. Please consider use of plain XML_Parse at this " + "place in your test, instead."); + } + return res; + } + } + } + // parse the final chunk, the size of which will be <= chunksize + return XML_Parse(parser, s, len, isFinal); +} + +void +_expect_failure(const char *text, enum XML_Error errorCode, + const char *errorMessage, const char *file, int lineno) { + if (_XML_Parse_SINGLE_BYTES(g_parser, text, (int)strlen(text), XML_TRUE) + == XML_STATUS_OK) + /* Hackish use of _fail() macro, but lets us report + the right filename and line number. */ + _fail(file, lineno, errorMessage); + if (XML_GetErrorCode(g_parser) != errorCode) + _xml_failure(g_parser, file, lineno); +} + +void +_run_character_check(const char *text, const XML_Char *expected, + const char *file, int line) { + CharData storage; + + CharData_Init(&storage); + XML_SetUserData(g_parser, &storage); + XML_SetCharacterDataHandler(g_parser, accumulate_characters); + if (_XML_Parse_SINGLE_BYTES(g_parser, text, (int)strlen(text), XML_TRUE) + == XML_STATUS_ERROR) + _xml_failure(g_parser, file, line); + CharData_CheckXMLChars(&storage, expected); +} + +void +_run_attribute_check(const char *text, const XML_Char *expected, + const char *file, int line) { + CharData storage; + + CharData_Init(&storage); + XML_SetUserData(g_parser, &storage); + XML_SetStartElementHandler(g_parser, accumulate_attribute); + if (_XML_Parse_SINGLE_BYTES(g_parser, text, (int)strlen(text), XML_TRUE) + == XML_STATUS_ERROR) + _xml_failure(g_parser, file, line); + CharData_CheckXMLChars(&storage, expected); +} + +void +_run_ext_character_check(const char *text, ExtTest *test_data, + const XML_Char *expected, const char *file, int line) { + CharData *const storage = (CharData *)malloc(sizeof(CharData)); + + CharData_Init(storage); + test_data->storage = storage; + XML_SetUserData(g_parser, test_data); + XML_SetCharacterDataHandler(g_parser, ext_accumulate_characters); + if (_XML_Parse_SINGLE_BYTES(g_parser, text, (int)strlen(text), XML_TRUE) + == XML_STATUS_ERROR) + _xml_failure(g_parser, file, line); + CharData_CheckXMLChars(storage, expected); + + free(storage); +} + +/* Control variable; the number of times duff_allocator() will successfully + * allocate */ +#define ALLOC_ALWAYS_SUCCEED (-1) +#define REALLOC_ALWAYS_SUCCEED (-1) + +int g_allocation_count = ALLOC_ALWAYS_SUCCEED; +int g_reallocation_count = REALLOC_ALWAYS_SUCCEED; + +/* Crocked allocator for allocation failure tests */ +void * +duff_allocator(size_t size) { + if (g_allocation_count == 0) + return NULL; + if (g_allocation_count != ALLOC_ALWAYS_SUCCEED) + g_allocation_count--; + return malloc(size); +} + +/* Crocked reallocator for allocation failure tests */ +void * +duff_reallocator(void *ptr, size_t size) { + if (g_reallocation_count == 0) + return NULL; + if (g_reallocation_count != REALLOC_ALWAYS_SUCCEED) + g_reallocation_count--; + return realloc(ptr, size); +} + +// Portable remake of strndup(3) for C99; does not care about space efficiency +char * +portable_strndup(const char *s, size_t n) { + if ((s == NULL) || (n == SIZE_MAX)) { + errno = EINVAL; + return NULL; + } + + char *const buffer = (char *)malloc(n + 1); + if (buffer == NULL) { + errno = ENOMEM; + return NULL; + } + + errno = 0; + + memcpy(buffer, s, n); + + buffer[n] = '\0'; + + return buffer; +} |