| /*************************************************************************** |
| * |
| * 21.string.substr.cpp - string test exercising [lib.string::substr] |
| * |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * 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> // for size_t |
| #include <stdexcept> // for out_of_range |
| |
| #include <rw_strings.h> // for StringIds |
| #include <rw_driver.h> // for rw_test() |
| #include <rw_allocator.h> // for UserAlloc |
| #include <rw_char.h> // for rw_expand() |
| |
| /**************************************************************************/ |
| |
| // for convenience and brevity |
| #define Substr(sig) StringIds::substr_ ## sig |
| |
| static const char* const exceptions[] = { |
| "unknown exception", "out_of_range", "length_error", |
| "bad_alloc", "exception" |
| }; |
| |
| /**************************************************************************/ |
| |
| // used to exercise |
| // substr () |
| static const StringTestCase |
| void_test_cases [] = { |
| |
| #undef TEST |
| #define TEST(str, res) \ |
| { __LINE__, -1, -1, -1, -1, -1, str, sizeof str - 1, 0, 0, \ |
| res, sizeof res - 1, 0 } |
| |
| // +------------------------------------- controlled sequence |
| // | +----------------- expected result sequence |
| // | | |
| // V V |
| TEST ("abc", "abc"), |
| |
| TEST ("", ""), |
| TEST ("<U0>", "<U0>"), |
| TEST ("a<U0>", "a<U0>"), |
| TEST ("<U0>a", "<U0>a"), |
| |
| TEST ("a<U0>@2bcd<U0>", "a<U0>@2bcd<U0>"), |
| TEST ("<U0>@2abcd<U0>", "<U0>@2abcd<U0>"), |
| TEST ("<U0>@2ab<U0>@2", "<U0>@2ab<U0>@2"), |
| |
| TEST ("x@4096", "x@4096"), |
| |
| TEST ("last", "last") |
| }; |
| |
| |
| /**************************************************************************/ |
| |
| // used to exercise |
| // substr (size_type) |
| static const StringTestCase |
| size_test_cases [] = { |
| |
| #undef TEST |
| #define TEST(str, off, res, bthrow) \ |
| { __LINE__, off, -1, -1, -1, -1, str, sizeof str - 1, 0, 0, \ |
| res, sizeof res - 1, bthrow } |
| |
| // +--------------------------------------- controlled sequence |
| // | +----------------- substr() off argument |
| // | | +------------- expected result sequence |
| // | | | +--- exception info: |
| // | | | | 0 - no exception |
| // | | | | 1 - out_of_range |
| // V V V V |
| TEST ("abc", 0, "abc", 0), |
| |
| TEST ("", 0, "", 0), |
| TEST ("<U0>", 0, "<U0>", 0), |
| TEST ("<U0>", 1, "", 0), |
| TEST ("a<U0>", 0, "a<U0>", 0), |
| TEST ("a<U0>", 1, "<U0>", 0), |
| TEST ("<U0>a", 0, "<U0>a", 0), |
| TEST ("<U0>a", 1, "a", 0), |
| |
| TEST ("a<U0>@2bcd<U0>", 0, "a<U0>@2bcd<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 1, "<U0>@2bcd<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 6, "<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 7, "", 0), |
| TEST ("<U0>@2abcd<U0>", 0, "<U0>@2abcd<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 1, "<U0>abcd<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 2, "abcd<U0>", 0), |
| TEST ("<U0>@2ab<U0>@2", 0, "<U0>@2ab<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 1, "<U0>ab<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 4, "<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 6, "", 0), |
| |
| TEST ("x@4096", 0, "x@4096", 0), |
| TEST ("x@4096", 4094, "xx", 0), |
| TEST ("x@4096", 4088, "xxxxxxxx", 0), |
| TEST ("x@4096", 4096, "", 0), |
| TEST ("abx@4096", 2, "x@4096", 0), |
| TEST ("x@4096ab", 2048, "x@2048ab", 0), |
| |
| TEST ("<U0>", 2, "", 1), |
| TEST ("a", 10, "", 1), |
| TEST ("x@4096", 4106, "", 1), |
| |
| TEST ("last", 0, "last", 0) |
| }; |
| |
| /**************************************************************************/ |
| |
| // used to exercise |
| // substr (size_type, size_type) |
| static const StringTestCase |
| size_size_test_cases [] = { |
| |
| #undef TEST |
| #define TEST(str, off, size, res, bthrow) \ |
| { __LINE__, off, size, -1, -1, -1, str, sizeof str - 1, 0, 0, \ |
| res, sizeof res - 1, bthrow } |
| |
| // +------------------------------------------ controlled sequence |
| // | +-------------------- substr() off argument |
| // | | +---------------- substr() n argument |
| // | | | +------------- expected result sequence |
| // | | | | +--- exception info: |
| // | | | | | 0 - no exception |
| // | | | | | 1 - out_of_range |
| // | | | | | |
| // | | | | +-------+ |
| // V V V V V |
| TEST ("abc", 0, 3, "abc", 0), |
| |
| TEST ("", 0, 0, "", 0), |
| TEST ("<U0>", 0, 1, "<U0>", 0), |
| TEST ("<U0>", 0, 0, "", 0), |
| TEST ("<U0>", 1, 1, "", 0), |
| TEST ("a<U0>", 0, 2, "a<U0>", 0), |
| TEST ("a<U0>", 1, 2, "<U0>", 0), |
| TEST ("a<U0>", 0, 1, "a", 0), |
| TEST ("a<U0>", 1, 1, "<U0>", 0), |
| TEST ("a<U0>", 1, 0, "", 0), |
| TEST ("<U0>a", 0, 2, "<U0>a", 0), |
| TEST ("<U0>a", 0, 1, "<U0>", 0), |
| TEST ("<U0>a", 1, 2, "a", 0), |
| |
| TEST ("a<U0>@2bcd<U0>", 0, 7, "a<U0>@2bcd<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 1, 7, "<U0>@2bcd<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 0, 3, "a<U0>@2", 0), |
| TEST ("a<U0>@2bcd<U0>", 1, 2, "<U0>@2", 0), |
| TEST ("a<U0>@2bcd<U0>", 6, 7, "<U0>", 0), |
| TEST ("a<U0>@2bcd<U0>", 7, 7, "", 0), |
| TEST ("<U0>@2abcd<U0>", 0, 7, "<U0>@2abcd<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 1, 7, "<U0>abcd<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 0, 3, "<U0>@2a", 0), |
| TEST ("<U0>@2abcd<U0>", 1, 1, "<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 6, 3, "<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 1, 6, "<U0>abcd<U0>", 0), |
| TEST ("<U0>@2abcd<U0>", 0, 0, "", 0), |
| TEST ("<U0>@2abcd<U0>", 2, 7, "abcd<U0>", 0), |
| TEST ("<U0>@2ab<U0>@2", 0, 6, "<U0>@2ab<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 1, 6, "<U0>ab<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 0, 2, "<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 4, 6, "<U0>@2", 0), |
| TEST ("<U0>@2ab<U0>@2", 2, 3, "ab<U0>", 0), |
| TEST ("<U0>@2ab<U0>@2", 6, 6, "", 0), |
| |
| TEST ("x@4096", 0, 4096, "x@4096", 0), |
| TEST ("x@4096", 4095, 4096, "x", 0), |
| TEST ("x@4096", 4088, 2, "xx", 0), |
| TEST ("x@4096", 4093, 5, "xxx", 0), |
| TEST ("x@4096", 4088, 8, "xxxxxxxx", 0), |
| TEST ("x@4096", 4096, 1, "", 0), |
| TEST ("ax@4096b", 1, 4094, "x@4094", 0), |
| |
| TEST ("<U0>", 2, 0, "", 1), |
| TEST ("a", 10, 0, "", 1), |
| TEST ("x@4096", 4106, 0, "", 1), |
| |
| TEST ("last", 0, 4, "last", 0) |
| }; |
| |
| /**************************************************************************/ |
| |
| template <class charT, class Traits, class Allocator> |
| void test_substr (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; |
| |
| String s_res; |
| |
| // 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 (tcase.bthrow) { |
| if (wres != wres_buf) |
| delete[] wres; |
| |
| return; |
| } |
| |
| #endif // _RWSTD_NO_EXCEPTIONS |
| |
| try { |
| switch (func.which_) { |
| |
| case Substr (void): |
| s_res = str.substr (); |
| break; |
| |
| case Substr (size): |
| s_res = str.substr (tcase.off); |
| break; |
| |
| case Substr (size_size): |
| s_res = str.substr (tcase.off, tcase.size); |
| break; |
| |
| default: |
| RW_ASSERT (!"logic error: unknown substr overload"); |
| return; |
| } |
| |
| // verfiy that strings length are equal |
| rw_assert (res_len == s_res.size (), 0, tcase.line, |
| "line %d. %{$FUNCALL} expected %{#*s} with length " |
| "%zu, got %{/*.*Gs} with length %zu", |
| __LINE__, int (tcase.nres), tcase.res, |
| res_len, int (sizeof (charT)), |
| int (s_res.size ()), s_res.c_str (), s_res.size ()); |
| |
| if (res_len == s_res.size ()) { |
| // if the result length matches the expected length |
| // (and only then), also verify that the resulted |
| // string matches the expected result |
| const std::size_t match = |
| rw_match (tcase.res, s_res.c_str(), s_res.size ()); |
| |
| rw_assert (match == res_len, 0, tcase.line, |
| "line %d. %{$FUNCALL} expected %{#*s}, " |
| "got %{/*.*Gs}, difference at offset %zu", |
| __LINE__, int (tcase.nres), tcase.res, |
| int (sizeof (charT)), int (s_res.size ()), |
| s_res.c_str (), match); |
| } |
| } |
| |
| #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); |
| } |
| |
| #endif // _RWSTD_NO_EXCEPTIONS |
| |
| if (wres != wres_buf) |
| delete[] wres; |
| } |
| |
| /**************************************************************************/ |
| |
| DEFINE_STRING_TEST_DISPATCH (test_substr); |
| |
| int main (int argc, char** argv) |
| { |
| static const StringTest |
| tests [] = { |
| |
| #undef TEST |
| #define TEST(sig) { \ |
| Substr (sig), sig ## _test_cases, \ |
| sizeof sig ## _test_cases / sizeof *sig ## _test_cases \ |
| } |
| |
| TEST (void), |
| TEST (size), |
| TEST (size_size) |
| }; |
| |
| const std::size_t test_count = sizeof tests / sizeof *tests; |
| |
| return rw_run_string_test (argc, argv, __FILE__, |
| "lib.string.substr", |
| test_substr, tests, test_count); |
| } |
