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Jose Caban
328
extern/stdcxx/4.2.1/tests/strings/21.string.copy.cpp
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328
extern/stdcxx/4.2.1/tests/strings/21.string.copy.cpp
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/***************************************************************************
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*
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* 21.string.copy.cpp - string test exercising [lib.string::copy]
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*
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* $Id: 21.string.copy.cpp 590052 2007-10-30 12:44:14Z faridz $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 2006 Rogue Wave Software.
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*
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**************************************************************************/
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#include <string> // for string
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#include <cstddef> // size_t
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#include <stdexcept> // for out_of_range
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#include <21.strings.h> // for StringMembers
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#include <driver.h> // for rw_assert()
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#include <rw_allocator.h> // for UserAlloc
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#include <rw_char.h> // for rw_expand()
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/**************************************************************************/
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// for convenience and brevity
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#define Copy(which) StringIds::copy_ ## which
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static const char* const exceptions[] = {
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"unknown exception", "out_of_range", "length_error",
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"bad_alloc", "exception"
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};
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/**************************************************************************/
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// exercises:
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// copy (value_type*, size_type)
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static const StringTestCase
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ptr_size_test_cases [] = {
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#undef TEST
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#define TEST(str, size, res) { \
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__LINE__, -1, size, -1, -1, -1, \
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str, sizeof str - 1, 0, 0, \
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res, sizeof res - 1, 0 \
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}
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// +--------------------------------------- controlled sequence
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// | +--------------- copy() n argument
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// | | +----------- expected result sequence
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// | | |
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// V V V
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TEST ("ab", 2, "ab"),
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TEST ("", 0, ""),
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TEST ("", 10, ""),
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TEST ("<U0>", 1, "<U0>"),
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TEST ("<U0>@2", 2, "<U0>@2"),
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TEST ("abc", 0, ""),
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TEST ("abc", 1, "a"),
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TEST ("abc", 2, "ab"),
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TEST ("abc", 3, "abc"),
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TEST ("abc", 5, "abc"),
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TEST ("a<U0>b<U0>@2c", 10, "a<U0>b<U0>@2c"),
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TEST ("<U0>ab<U0>@3c<U0>", 1, "<U0>"),
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TEST ("<U0>ab<U0>@3c<U0>", 8, "<U0>ab<U0>@3c<U0>"),
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TEST ("<U0>ab<U0>@3c<U0>", 5, "<U0>ab<U0>@2"),
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TEST ("<U0>@2ab<U0>@2c<U0>", 6, "<U0>@2ab<U0>@2"),
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TEST ("x@4096", 4096, "x@4096"),
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TEST ("last", 4, "last")
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};
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/**************************************************************************/
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// exercises:
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// copy (value_type*, size_type, size_type)
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static const StringTestCase
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ptr_size_size_test_cases [] = {
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#undef TEST
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#define TEST(str, size, off, res, bthrow) { \
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__LINE__, off, size, -1, -1, -1, \
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str, sizeof str - 1, 0, 0, \
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res, sizeof res - 1, bthrow \
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}
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// +------------------------------------------ controlled sequence
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// | +------------------ copy() n argument
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// | | +-------------- copy() pos argument
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// | | | +----------- expected result sequence
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// | | | | +--- exception info:
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// | | | | | 0 - no exception
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// | | | | | 1 - out_of_range
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// | | | | |
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// | | | | +---------+
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// V V V V V
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TEST ("ab", 2, 0, "ab", 0),
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TEST ("", 0, 0, "", 0),
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TEST ("", 10, 0, "", 0),
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TEST ("<U0>", 1, 0, "<U0>", 0),
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TEST ("<U0>@2", 1, 1, "<U0>", 0),
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TEST ("<U0>@2", 2, 0, "<U0>@2", 0),
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TEST ("abc", 1, 0, "a", 0),
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TEST ("abc", 1, 1, "b", 0),
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TEST ("abc", 1, 2, "c", 0),
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TEST ("abc", 0, 0, "", 0),
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TEST ("abc", 2, 0, "ab", 0),
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TEST ("abc", 2, 1, "bc", 0),
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TEST ("abc", 3, 0, "abc", 0),
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TEST ("abc", 10, 1, "bc", 0),
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TEST ("abc", 3, 2, "c", 0),
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TEST ("a<U0>b<U0>@2c", 10, 1, "<U0>b<U0>@2c", 0),
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TEST ("a<U0>b<U0>@2c", 10, 0, "a<U0>b<U0>@2c", 0),
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TEST ("a<U0>b<U0>@2c", 1, 1, "<U0>", 0),
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TEST ("<U0>ab<U0>@3c<U0>", 10, 1, "ab<U0>@3c<U0>", 0),
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TEST ("<U0>ab<U0>@3c<U0>", 5, 0, "<U0>ab<U0>@2", 0),
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TEST ("<U0>ab<U0>@3c<U0>", 3, 3, "<U0>@3", 0),
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TEST ("<U0>@2ab<U0>@2c<U0>", 6, 0, "<U0>@2ab<U0>@2", 0),
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TEST ("<U0>@2ab<U0>@2c<U0>", 4, 1, "<U0>ab<U0>", 0),
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TEST ("x@4096", 4096, 0, "x@4096", 0),
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TEST ("x@4096", 2, 1, "xx", 0),
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TEST ("x@4096", 4096, 4095, "x", 0),
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TEST ("<U0>", 0, 2, "", 1),
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TEST ("a", 0, 10, "", 1),
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TEST ("x@4096", 0, 4106, "", 1),
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TEST ("last", 4, 0, "last", 0)
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};
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/**************************************************************************/
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template <class charT, class Traits, class Allocator>
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void test_copy (charT, Traits*, Allocator*,
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const StringFunc &func,
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const StringTestCase &tcase)
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{
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typedef std::basic_string <charT, Traits, Allocator> String;
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static const std::size_t BUFSIZE = 256;
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static charT wstr_buf [BUFSIZE];
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std::size_t str_len = sizeof wstr_buf / sizeof *wstr_buf;
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charT* wstr = rw_expand (wstr_buf, tcase.str, tcase.str_len, &str_len);
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static charT wres_buf [BUFSIZE];
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std::size_t res_len = sizeof wres_buf / sizeof *wres_buf;
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charT* wres = rw_expand (wres_buf, tcase.res, tcase.nres, &res_len);
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// construct the string object
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const String str (wstr, str_len);
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if (wstr != wstr_buf)
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delete[] wstr;
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wstr = 0;
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const std::size_t min_len =
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str_len < std::size_t (tcase.size) ? str_len : tcase.size;
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std::size_t res = 0;
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// create destination array and initialize it with garbage
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charT* const s_res = new charT [min_len + 2];
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const char cgb [2] = "#";
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const charT wcgb = make_char (cgb [0], (charT*)0);
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Traits::assign (s_res, min_len + 1, wcgb);
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s_res [min_len + 1] = charT ();
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// save the state of the string object before the call
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// to detect wxception safety violations (changes to
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// the state of the object after an exception)
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const StringState str_state (rw_get_string_state (str));
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#ifndef _RWSTD_NO_EXCEPTIONS
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// is some exception expected?
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const char* const expected = tcase.bthrow ? exceptions [1] : 0;
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const char* caught = 0;
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#else // if defined (_RWSTD_NO_EXCEPTIONS)
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if (tcase.bthrow) {
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if (wres != wres_buf)
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delete[] wres;
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return;
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}
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#endif // _RWSTD_NO_EXCEPTIONS
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try {
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switch (func.which_) {
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case Copy (ptr_size): {
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res = str.copy (s_res, tcase.size);
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break;
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}
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case Copy (ptr_size_size): {
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res = str.copy (s_res, tcase.size, tcase.off);
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break;
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}
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default:
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RW_ASSERT (!"logic error: unknown copy overload");
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return;
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}
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// verify the returned value
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rw_assert (res == res_len, 0, tcase.line,
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"line %d. %{$FUNCALL} == %zu, got %zu",
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__LINE__, res_len, res);
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if (res == res_len)
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{
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const std::size_t match = rw_match (tcase.res, s_res, res_len);
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bool success = match == res_len;
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rw_assert (success, 0, tcase.line,
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"line %d. %{$FUNCALL} expected %{#*s}, "
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"got %{/*.*Gs}, differ at pos %zu",
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__LINE__, int (tcase.nres), tcase.res,
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int (sizeof (charT)), int (res), s_res, match);
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success = 1 == rw_match (cgb, s_res + min_len, 1);
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rw_assert (success, 0, tcase.line,
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"line %d. %{$FUNCALL} detected writing past the end of "
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"the provided buffer", __LINE__);
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}
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}
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#ifndef _RWSTD_NO_EXCEPTIONS
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catch (const std::out_of_range &ex) {
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caught = exceptions [1];
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rw_assert (caught == expected, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught std::%s(%#s)",
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__LINE__, 0 != expected, expected, caught, ex.what ());
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}
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catch (const std::exception &ex) {
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caught = exceptions [4];
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rw_assert (0, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught std::%s(%#s)",
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__LINE__, 0 != expected, expected, caught, ex.what ());
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}
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catch (...) {
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caught = exceptions [0];
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rw_assert (0, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught %s",
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__LINE__, 0 != expected, expected, caught);
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}
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if (caught) {
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// verify that an exception thrown during allocation
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// didn't cause a change in the state of the object
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str_state.assert_equal (rw_get_string_state (str),
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__LINE__, tcase.line, caught);
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}
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else if (-1 != tcase.bthrow) {
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rw_assert (caught == expected, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s, caught %s"
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"%{:}unexpectedly caught %s%{;}",
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__LINE__, 0 != expected, expected, caught, caught);
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}
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#endif // _RWSTD_NO_EXCEPTIONS
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if (wres != wres_buf)
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delete[] wres;
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delete[] s_res;
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}
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/**************************************************************************/
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DEFINE_STRING_TEST_DISPATCH (test_copy);
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int main (int argc, char** argv)
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{
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static const StringTest
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tests [] = {
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#undef TEST
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#define TEST(which) { \
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Copy (which), which ## _test_cases, \
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sizeof which ## _test_cases / sizeof *which ## _test_cases \
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}
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TEST (ptr_size),
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TEST (ptr_size_size)
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};
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const std::size_t test_count = sizeof tests / sizeof *tests;
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return rw_run_string_test (argc, argv, __FILE__,
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"lib.string.copy",
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test_copy, tests, test_count);
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}
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