116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
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/*
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IterQueue(Test) - verify queue-like iterator and builder function
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Copyright (C) Lumiera.org
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2012, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/util.hpp"
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#include "lib/iter-stack.hpp"
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namespace lib {
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namespace test{
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using ::Test;
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using util::isnil;
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using lumiera::error::LUMIERA_ERROR_ITER_EXHAUST;
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/*********************************************************************
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* @test cover an easy to use queue, built as convenience wrapper
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* on top of \c std::deque and allowing element retrieval
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* by iteration.
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* - iterable according to the Lumiera Forward Iterator concept
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* - can enqueue and dequeue elements repeatedly
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* - can be loaded through an generic builder API.
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*
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* @see IterExplorer
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* @see IterAdapter
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*/
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class IterQueue_test : public Test
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{
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virtual void
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run (Arg)
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{
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IterQueue<int> queue;
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CHECK (isnil (queue));
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VERIFY_ERROR (ITER_EXHAUST, *queue );
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VERIFY_ERROR (ITER_EXHAUST, ++queue );
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queue.feed (1);
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queue.feed (3);
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queue.feed (5);
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CHECK (!isnil (queue));
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CHECK (1 == *queue);
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++queue;
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CHECK (3 == *queue);
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CHECK (3 == queue.pop());
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CHECK (5 == *queue);
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++queue;
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CHECK (isnil (queue));
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VERIFY_ERROR (ITER_EXHAUST, *queue );
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VERIFY_ERROR (ITER_EXHAUST, ++queue );
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VERIFY_ERROR (ITER_EXHAUST, queue.pop() );
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// use the generic builder API to feed
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// the contents of another iterator into the queue
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queue = build(queue).usingSequence (elements (23,45));
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int i = queue.pop();
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CHECK (i == 23);
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CHECK (45 == *queue);
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// feeding new elements and pulling / iteration can be mixed
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queue.feed(67);
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CHECK (45 == *queue);
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++queue;
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CHECK (67 == *queue);
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++queue;
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CHECK (isnil (queue));
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queue.feed(89);
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CHECK (89 == *queue);
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queue.pop();
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VERIFY_ERROR (ITER_EXHAUST, *queue );
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}
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};
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LAUNCHER (IterQueue_test, "unit common");
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}} // namespace lib::test
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