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<?php /** * Hoa * * * @license * * New BSD License * * Copyright © 2007-2017, Hoa community. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the Hoa nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ namespace Hoa\Iterator\Test\Unit; use Hoa\Iterator as LUT; use Hoa\Test; /** * Class \Hoa\Iterator\Test\Unit\Lookahead. * * Test suite of the look ahead iterator. * * @copyright Copyright © 2007-2017 Hoa community * @license New BSD License */ class Lookahead extends Test\Unit\Suite { public function case_traverse() { $this ->given( $iterator = new LUT\Map(['a', 'b', 'c']), $lookahead = new LUT\Lookahead($iterator) ) ->when($result = iterator_to_array($iterator)) ->then ->array($result) ->isEqualTo(['a', 'b', 'c']); } public function case_check_ahead() { $this ->given( $iterator = new LUT\Map(['a', 'b', 'c']), $lookahead = new LUT\Lookahead($iterator) ) ->when( $lookahead->rewind(), $key = $lookahead->key(), $current = $lookahead->current(), $hasNext = $lookahead->hasNext(), $next = $lookahead->getNext() ) ->then ->integer($key) ->isEqualTo(0) ->string($current) ->isEqualTo('a') ->boolean($hasNext) ->isTrue() ->string($next) ->isEqualTo('b') ->when( $lookahead->next(), $key = $lookahead->key(), $current = $lookahead->current(), $hasNext = $lookahead->hasNext(), $next = $lookahead->getNext() ) ->then ->integer($key) ->isEqualTo(1) ->string($current) ->isEqualTo('b') ->boolean($hasNext) ->isTrue() ->string($next) ->isEqualTo('c') ->when( $lookahead->next(), $key = $lookahead->key(), $current = $lookahead->current(), $hasNext = $lookahead->hasNext(), $next = $lookahead->getNext() ) ->then ->integer($key) ->isEqualTo(2) ->string($current) ->isEqualTo('c') ->boolean($hasNext) ->isFalse() ->variable($next) ->isNull(); } public function case_double_rewind() { $this ->given( $iterator = new LUT\Map(['a', 'b', 'c']), $lookahead = new LUT\Lookahead($iterator) ) ->when( $lookahead->rewind(), $key = $lookahead->key(), $current = $lookahead->current(), $hasNext = $lookahead->hasNext(), $next = $lookahead->getNext() ) ->then ->integer($key) ->isEqualTo(0) ->string($current) ->isEqualTo('a') ->boolean($hasNext) ->isTrue() ->string($next) ->isEqualTo('b') ->when( $lookahead->rewind(), $key = $lookahead->key(), $current = $lookahead->current(), $hasNext = $lookahead->hasNext(), $next = $lookahead->getNext() ) ->then ->integer($key) ->isEqualTo(0) ->string($current) ->isEqualTo('a') ->boolean($hasNext) ->isTrue() ->string($next) ->isEqualTo('b'); } public function case_empty() { $this ->given( $iterator = new LUT\Mock(), $lookahead = new LUT\Lookahead($iterator) ) ->when( $lookahead->rewind(), $valid = $lookahead->valid() ) ->then ->boolean($valid) ->isFalse(); } }
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