| /*************************************************************************** |
| * |
| * 21.string.copy.cpp - string test exercising [lib.string::copy] |
| * |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * 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. |
| * |
| * Copyright 2006 Rogue Wave Software. |
| * |
| **************************************************************************/ |
| |
| #include <string> // for string |
| #include <cstddef> // size_t |
| #include <stdexcept> // for out_of_range |
| |
| #include <rw_strings.h> // for StringMembers |
| #include <rw_driver.h> // for rw_assert() |
| #include <rw_allocator.h> // for UserAlloc |
| #include <rw_char.h> // for rw_expand() |
| |
| /**************************************************************************/ |
| |
| // for convenience and brevity |
| #define Copy(which) StringIds::copy_ ## which |
| |
| static const char* const exceptions[] = { |
| "unknown exception", "out_of_range", "length_error", |
| "bad_alloc", "exception" |
| }; |
| |
| /**************************************************************************/ |
| |
| // exercises: |
| // copy (value_type*, size_type) |
| static const StringTestCase |
| ptr_size_test_cases [] = { |
| |
| #undef TEST |
| #define TEST(str, size, res) { \ |
| __LINE__, -1, size, -1, -1, -1, \ |
| str, sizeof str - 1, 0, 0, \ |
| res, sizeof res - 1, 0 \ |
| } |
| |
| // +--------------------------------------- controlled sequence |
| // | +--------------- copy() n argument |
| // | | +----------- expected result sequence |
| // | | | |
| // V V V |
| TEST ("ab", 2, "ab"), |
| |
| TEST ("", 0, ""), |
| TEST ("", 10, ""), |
| |
| TEST ("<U0>", 1, "<U0>"), |
| TEST ("<U0>@2", 2, "<U0>@2"), |
| |
| TEST ("abc", 0, ""), |
| TEST ("abc", 1, "a"), |
| TEST ("abc", 2, "ab"), |
| TEST ("abc", 3, "abc"), |
| TEST ("abc", 5, "abc"), |
| |
| TEST ("a<U0>b<U0>@2c", 10, "a<U0>b<U0>@2c"), |
| TEST ("<U0>ab<U0>@3c<U0>", 1, "<U0>"), |
| TEST ("<U0>ab<U0>@3c<U0>", 8, "<U0>ab<U0>@3c<U0>"), |
| TEST ("<U0>ab<U0>@3c<U0>", 5, "<U0>ab<U0>@2"), |
| TEST ("<U0>@2ab<U0>@2c<U0>", 6, "<U0>@2ab<U0>@2"), |
| |
| TEST ("x@4096", 4096, "x@4096"), |
| |
| TEST ("last", 4, "last") |
| }; |
| |
| /**************************************************************************/ |
| |
| // exercises: |
| // copy (value_type*, size_type, size_type) |
| static const StringTestCase |
| ptr_size_size_test_cases [] = { |
| |
| #undef TEST |
| #define TEST(str, size, off, res, bthrow) { \ |
| __LINE__, off, size, -1, -1, -1, \ |
| str, sizeof str - 1, 0, 0, \ |
| res, sizeof res - 1, bthrow \ |
| } |
| |
| // +------------------------------------------ controlled sequence |
| // | +------------------ copy() n argument |
| // | | +-------------- copy() pos argument |
| // | | | +----------- expected result sequence |
| // | | | | +--- exception info: |
| // | | | | | 0 - no exception |
| // | | | | | 1 - out_of_range |
| // | | | | | |
| // | | | | +---------+ |
| // V V V V V |
| TEST ("ab", 2, 0, "ab", 0), |
| |
| TEST ("", 0, 0, "", 0), |
| TEST ("", 10, 0, "", 0), |
| |
| TEST ("<U0>", 1, 0, "<U0>", 0), |
| TEST ("<U0>@2", 1, 1, "<U0>", 0), |
| TEST ("<U0>@2", 2, 0, "<U0>@2", 0), |
| |
| TEST ("abc", 1, 0, "a", 0), |
| TEST ("abc", 1, 1, "b", 0), |
| TEST ("abc", 1, 2, "c", 0), |
| |
| TEST ("abc", 0, 0, "", 0), |
| TEST ("abc", 2, 0, "ab", 0), |
| TEST ("abc", 2, 1, "bc", 0), |
| TEST ("abc", 3, 0, "abc", 0), |
| TEST ("abc", 10, 1, "bc", 0), |
| TEST ("abc", 3, 2, "c", 0), |
| |
| TEST ("a<U0>b<U0>@2c", 10, 1, "<U0>b<U0>@2c", 0), |
| TEST ("a<U0>b<U0>@2c", 10, 0, "a<U0>b<U0>@2c", 0), |
| TEST ("a<U0>b<U0>@2c", 1, 1, "<U0>", 0), |
| |
| TEST ("<U0>ab<U0>@3c<U0>", 10, 1, "ab<U0>@3c<U0>", 0), |
| TEST ("<U0>ab<U0>@3c<U0>", 5, 0, "<U0>ab<U0>@2", 0), |
| TEST ("<U0>ab<U0>@3c<U0>", 3, 3, "<U0>@3", 0), |
| |
| TEST ("<U0>@2ab<U0>@2c<U0>", 6, 0, "<U0>@2ab<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2c<U0>", 4, 1, "<U0>ab<U0>", 0), |
| |
| TEST ("x@4096", 4096, 0, "x@4096", 0), |
| TEST ("x@4096", 2, 1, "xx", 0), |
| TEST ("x@4096", 4096, 4095, "x", 0), |
| |
| TEST ("<U0>", 0, 2, "", 1), |
| TEST ("a", 0, 10, "", 1), |
| TEST ("x@4096", 0, 4106, "", 1), |
| |
| TEST ("last", 4, 0, "last", 0) |
| }; |
| |
| /**************************************************************************/ |
| |
| template <class charT, class Traits, class Allocator> |
| void test_copy (charT, Traits*, Allocator*, |
| const StringFunc &func, |
| const StringTestCase &tcase) |
| { |
| typedef std::basic_string <charT, Traits, Allocator> String; |
| |
| static const std::size_t BUFSIZE = 256; |
| |
| static charT wstr_buf [BUFSIZE]; |
| std::size_t str_len = sizeof wstr_buf / sizeof *wstr_buf; |
| charT* wstr = rw_expand (wstr_buf, tcase.str, tcase.str_len, &str_len); |
| |
| static charT wres_buf [BUFSIZE]; |
| std::size_t res_len = sizeof wres_buf / sizeof *wres_buf; |
| charT* wres = rw_expand (wres_buf, tcase.res, tcase.nres, &res_len); |
| |
| // construct the string object |
| const String str (wstr, str_len); |
| |
| if (wstr != wstr_buf) |
| delete[] wstr; |
| |
| wstr = 0; |
| |
| const std::size_t min_len = |
| str_len < std::size_t (tcase.size) ? str_len : tcase.size; |
| |
| std::size_t res = 0; |
| |
| // create destination array and initialize it with garbage |
| charT* const s_res = new charT [min_len + 2]; |
| |
| const char cgb [2] = "#"; |
| const charT wcgb = make_char (cgb [0], (charT*)0); |
| Traits::assign (s_res, min_len + 1, wcgb); |
| s_res [min_len + 1] = charT (); |
| |
| // save the state of the string object before the call |
| // to detect wxception safety violations (changes to |
| // the state of the object after an exception) |
| const StringState str_state (rw_get_string_state (str)); |
| |
| #ifndef _RWSTD_NO_EXCEPTIONS |
| |
| // is some exception expected? |
| const char* const expected = tcase.bthrow ? exceptions [1] : 0; |
| const char* caught = 0; |
| |
| #else // if defined (_RWSTD_NO_EXCEPTIONS) |
| |
| if (tcase.bthrow) { |
| if (wres != wres_buf) |
| delete[] wres; |
| |
| return; |
| } |
| |
| #endif // _RWSTD_NO_EXCEPTIONS |
| |
| try { |
| switch (func.which_) { |
| case Copy (ptr_size): { |
| res = str.copy (s_res, tcase.size); |
| break; |
| } |
| |
| case Copy (ptr_size_size): { |
| res = str.copy (s_res, tcase.size, tcase.off); |
| break; |
| } |
| default: |
| RW_ASSERT (!"logic error: unknown copy overload"); |
| return; |
| } |
| |
| // verify the returned value |
| rw_assert (res == res_len, 0, tcase.line, |
| "line %d. %{$FUNCALL} == %zu, got %zu", |
| __LINE__, res_len, res); |
| |
| if (res == res_len) |
| { |
| const std::size_t match = rw_match (tcase.res, s_res, res_len); |
| bool success = match == res_len; |
| |
| rw_assert (success, 0, tcase.line, |
| "line %d. %{$FUNCALL} expected %{#*s}, " |
| "got %{/*.*Gs}, differ at pos %zu", |
| __LINE__, int (tcase.nres), tcase.res, |
| int (sizeof (charT)), int (res), s_res, match); |
| |
| success = 1 == rw_match (cgb, s_res + min_len, 1); |
| rw_assert (success, 0, tcase.line, |
| "line %d. %{$FUNCALL} detected writing past the end of " |
| "the provided buffer", __LINE__); |
| } |
| } |
| |
| #ifndef _RWSTD_NO_EXCEPTIONS |
| |
| catch (const std::out_of_range &ex) { |
| caught = exceptions [1]; |
| rw_assert (caught == expected, 0, tcase.line, |
| "line %d. %{$FUNCALL} %{?}expected %s,%{:}" |
| "unexpectedly%{;} caught std::%s(%#s)", |
| __LINE__, 0 != expected, expected, caught, ex.what ()); |
| } |
| catch (const std::exception &ex) { |
| caught = exceptions [4]; |
| rw_assert (0, 0, tcase.line, |
| "line %d. %{$FUNCALL} %{?}expected %s,%{:}" |
| "unexpectedly%{;} caught std::%s(%#s)", |
| __LINE__, 0 != expected, expected, caught, ex.what ()); |
| } |
| catch (...) { |
| caught = exceptions [0]; |
| rw_assert (0, 0, tcase.line, |
| "line %d. %{$FUNCALL} %{?}expected %s,%{:}" |
| "unexpectedly%{;} caught %s", |
| __LINE__, 0 != expected, expected, caught); |
| } |
| |
| if (caught) { |
| // verify that an exception thrown during allocation |
| // didn't cause a change in the state of the object |
| str_state.assert_equal (rw_get_string_state (str), |
| __LINE__, tcase.line, caught); |
| } |
| else if (-1 != tcase.bthrow) { |
| rw_assert (caught == expected, 0, tcase.line, |
| "line %d. %{$FUNCALL} %{?}expected %s, caught %s" |
| "%{:}unexpectedly caught %s%{;}", |
| __LINE__, 0 != expected, expected, caught, caught); |
| } |
| |
| #endif // _RWSTD_NO_EXCEPTIONS |
| |
| if (wres != wres_buf) |
| delete[] wres; |
| |
| delete[] s_res; |
| } |
| |
| /**************************************************************************/ |
| |
| DEFINE_STRING_TEST_DISPATCH (test_copy); |
| |
| int main (int argc, char** argv) |
| { |
| static const StringTest |
| tests [] = { |
| |
| #undef TEST |
| #define TEST(which) { \ |
| Copy (which), which ## _test_cases, \ |
| sizeof which ## _test_cases / sizeof *which ## _test_cases \ |
| } |
| |
| TEST (ptr_size), |
| TEST (ptr_size_size) |
| }; |
| |
| const std::size_t test_count = sizeof tests / sizeof *tests; |
| |
| return rw_run_string_test (argc, argv, __FILE__, |
| "lib.string.copy", |
| test_copy, tests, test_count); |
| } |