370 lines
10 KiB
C++
370 lines
10 KiB
C++
/************************************************************************
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*
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* 0.inputiter.cpp - test exercising the InputIter class template
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*
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* $Id: 0.inputiter.cpp 550991 2007-06-26 23:58:07Z sebor $
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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 1994-2005 Rogue Wave Software.
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*
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**************************************************************************/
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#include <setjmp.h>
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#include <signal.h>
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#include <stdio.h>
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#ifdef _MSC_VER
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#include <crtdbg.h> // for _CrtSetReportMode()
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#endif
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#include <alg_test.h> // for InputIter
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#include <rw_value.h> // for UserClass
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#include <driver.h> // for rw_test(), ...
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/***********************************************************************/
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int exit_status /* = 0 */;
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extern "C" {
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int line;
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int fail;
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jmp_buf env;
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void handle_ABRT (int)
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{
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fail = 0;
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longjmp (env, 1);
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}
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}
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#define FAIL(code) \
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fail = line = __LINE__; \
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signal (SIGABRT, handle_ABRT); \
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if (0 == setjmp (env)) { \
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code; \
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exit_status = 1; \
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rw_assert (0, 0, line, "expected assertion"); \
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} \
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else \
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(void)0
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#define PASS(code) \
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fail = -1; line = __LINE__; \
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signal (SIGABRT, handle_ABRT); \
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if (0 == setjmp (env)) \
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code; \
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else if (fail != line) { \
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exit_status = 1; \
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rw_assert (0, 0, line, "unexpected assertion"); \
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} (void)0
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typedef InputIter<UserClass> Iterator;
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// FIXME: implement an easy way to print out an array of UserClass
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#define X2STR(ign1, ign2) "***NOT IMPLEMENTED ***"
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/***********************************************************************/
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static void
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test_0 ()
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{
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UserClass *x = UserClass::from_char ("abc");
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Iterator end0 = make_iter (x + 3, x + 0, x + 3, end0);
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Iterator end1 = make_iter (x + 3, x + 0, x + 3, end1);
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bool equal;
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// end iterator must compare equal to itself
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PASS (equal = end0 == end0);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> end iterator unexpectedly "
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"not equal to self: %p == %p", end0.cur_, end0.cur_);
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PASS (equal = end0 != end0);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> end iterator unexpectedly "
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"not equal to self: %p == %p", end0.cur_, end0.cur_);
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// end iterator must compare equal to another
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PASS (equal = end0 == end1);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> end iterator unexpectedly "
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"not equal to another: %p == %p", end0.cur_, end1.cur_);
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PASS (equal = end0 != end1);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> end iterator unexpectedly "
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"not equal to another: %p == %p", end0.cur_, end1.cur_);
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// cannot increment the end iterator
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FAIL (++end0);
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FAIL (end0++);
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FAIL (++end1);
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FAIL (end1++);
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// cannot dereference the end iterator
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FAIL (x [0] = *end0);
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FAIL (x [0] = *end1);
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FAIL (equal = int ('a') == end0->data_.val_);
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FAIL (equal = int ('a') == end1->data_.val_);
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delete[] x;
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}
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/***********************************************************************/
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static void
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test_1 ()
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{
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UserClass *x = UserClass::from_char ("abcdef");
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UserClass *y = UserClass::from_char ("ABCDEF");
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const Iterator end = make_iter (x + 6, x + 0, x + 6, end);
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Iterator it = make_iter (x + 0, x + 0, x + 6, it);
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bool equal;
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// non-end iterator must compare unequal to the end iterator
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PASS (equal = it == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p == %p", it.cur_, end.cur_);
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PASS (y [0] = *it);
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PASS (++it);
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PASS (equal = it == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p == %p", it.cur_, end.cur_);
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PASS (y [1] = *it);
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PASS (++it);
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PASS (equal = it == it);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to self: "
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"%p == %p", it.cur_, it.cur_);
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PASS (y [2] = *it);
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PASS (++it);
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PASS (y [3] = *it);
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PASS (++it);
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PASS (y [4] = *it);
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PASS (++it);
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PASS (y [5] = *it);
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PASS (++it);
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PASS (equal = it == end);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly not qual to end: "
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"%p != %p (diff = %d)",
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it.cur_, end.cur_, end.cur_ - it.cur_);
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rw_assert (0 == UserClass::compare (x, y, 6), 0, __LINE__,
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"InputIter<UserClass> data mismatch: %s != %s",
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X2STR (x, 6), X2STR (y, 6));
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delete[] x;
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delete[] y;
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}
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/***********************************************************************/
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static void
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test_2 ()
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{
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UserClass *x = UserClass::from_char ("abcdef");
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UserClass *y = UserClass::from_char ("ABCDEF");
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const Iterator end = make_iter (x + 6, x + 0, x + 6, end);
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Iterator it = make_iter (x + 0, x + 0, x + 6, it);
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PASS (y [0] = *it);
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PASS (y [1] = *++it);
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PASS (y [2] = *it++); // it++ is the same as ++it
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PASS (y [3] = *it++);
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PASS (++it);
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PASS (y [4] = *it);
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PASS (y [5] = *it++);
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bool equal;
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PASS (equal = it == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p != %p (diff = %d)",
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it.cur_, end.cur_, end.cur_ - it.cur_);
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PASS (++it);
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PASS (equal = it == end);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly not equal to end: "
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"%p != %p (diff = %d)",
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it.cur_, end.cur_, end.cur_ - it.cur_);
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rw_assert (0 == UserClass::compare (x, y, 6), 0, __LINE__,
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"InputIter<UserClass> data mismatch: %s != %s",
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X2STR (x, 6), X2STR (y, 6));
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delete[] x;
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delete[] y;
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}
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/***********************************************************************/
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static void
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test_3 ()
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{
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UserClass *x = UserClass::from_char ("abcdef");
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UserClass *y = UserClass::from_char ("ABCDEF");
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const Iterator end = make_iter (x + 6, x + 6, x + 6, end);
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Iterator it0 = make_iter (x + 0, x + 0, x + 6, it0);
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Iterator it1 = it0;
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bool equal;
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PASS (equal = it0 == it1);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly not equal: "
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"%p != %p (diff = %d)",
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it0.cur_, it1.cur_, it0.cur_ - it1.cur_);
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PASS (equal = it0 == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p == %p", it1.cur_, end.cur_);
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PASS (y [0] = *it0);
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PASS (y [1] = *it1);
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rw_assert (y [0].data_.val_ == y [1].data_.val_, 0, __LINE__,
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"two copies of InputIter<UserClass> unexpectedly yield "
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"different values: %d != %d",
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y [0].data_.val_, y [1].data_.val_);
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PASS (it0++);
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FAIL (it1++); // can't pass through the same iterator twice
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FAIL (it0 == it1); // it1 not in the domain of operator==()
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PASS (equal = it0 == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p == %p", it1.cur_, end.cur_);
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PASS (it1 = it0);
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PASS (equal = it0 == it1);
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rw_assert (equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly not equal: "
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"%p == %p", it0.cur_, it1.cur_);
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PASS (y [0] = *it0);
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PASS (y [1] = *it1);
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rw_assert (y [0].data_.val_ == y [1].data_.val_, 0, __LINE__,
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"two copies of InputIter<UserClass> unexpectedly yield "
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"different values: %d != %d",
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y [0].data_.val_, y [1].data_.val_);
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rw_assert (y [0].data_.val_ == 'b', 0, __LINE__,
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"InputIter<UserClass>::operator*() == %d, got %d",
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y [0].data_.val_, 'b');
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PASS (it1++);
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FAIL (it0++); // can't pass through the same iterator twice
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FAIL (it0 == it1); // it0 not in the domain of operator==()
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PASS (equal = it1 == end);
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rw_assert (!equal, 0, __LINE__,
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"InputIter<UserClass> unexpectedly equal to end: "
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"%p == %p", it1.cur_, end.cur_);
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FAIL (x [0] = *it0); // cannot dereference
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delete[] x;
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delete[] y;
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}
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/***********************************************************************/
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static int
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run_test (int, char*[])
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{
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#ifndef NDEBUG
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// silence stderr output from invocations of the RW_ASSERT() macro
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// that are expected to fail by design (i.e., that's what this test
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// exercises)
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fclose (stderr);
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test_0 ();
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test_1 ();
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test_2 ();
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test_3 ();
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#else // if defined (NDEBUG)
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rw_assert (0, 0, __LINE__, "macro NDEBUG #defined, cannot test");
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#endif // NDEBUG
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return exit_status;
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}
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/***********************************************************************/
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int main (int argc, char *argv[])
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{
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#ifdef _MSC_VER
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// disable GUI window from abort()
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_CrtSetReportMode (_CRT_ERROR, _CRTDBG_MODE_DEBUG);
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#endif
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return rw_test (argc, argv, __FILE__,
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0 /* no clause */,
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0 /* no comment */, run_test,
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0 /* co command line options */);
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}
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