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* Copyright (c) 2002-2010, Sebastian Bergmann <sebastian@phpunit.de>.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* * Neither the name of Sebastian Bergmann nor the names of his
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* @subpackage Framework_Constraint
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* @author Sebastian Bergmann <sebastian@phpunit.de>
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* @copyright 2002-2010 Sebastian Bergmann <sebastian@phpunit.de>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @link http://www.phpunit.de/
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* @since File available since Release 3.0.0
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* Constraint that asserts that the value it is evaluated for is of a
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* The expected value is passed in the constructor.
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* @subpackage Framework_Constraint
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* @author Sebastian Bergmann <sebastian@phpunit.de>
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* @copyright 2002-2010 Sebastian Bergmann <sebastian@phpunit.de>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @version Release: 3.5.5
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* @link http://www.phpunit.de/
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* @since Class available since Release 3.0.0
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class PHPUnit_Framework_Constraint_IsType extends PHPUnit_Framework_Constraint
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const TYPE_ARRAY = 'array';
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const TYPE_BOOL = 'bool';
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const TYPE_FLOAT = 'float';
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const TYPE_INT = 'int';
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const TYPE_NULL = 'null';
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const TYPE_NUMERIC = 'numeric';
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const TYPE_OBJECT = 'object';
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const TYPE_RESOURCE = 'resource';
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const TYPE_STRING = 'string';
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const TYPE_SCALAR = 'scalar';
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protected $types = array(
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* @throws InvalidArgumentException
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public function __construct($type)
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if (!isset($this->types[$type])) {
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throw new InvalidArgumentException(
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'Type specified for PHPUnit_Framework_Constraint_IsType <%s> ' .
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'is not a valid type.',
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* Evaluates the constraint for parameter $other. Returns TRUE if the
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* constraint is met, FALSE otherwise.
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* @param mixed $other Value or object to evaluate.
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public function evaluate($other)
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switch ($this->type) {
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return is_numeric($other);
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return is_integer($other);
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return is_float($other);
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return is_string($other);
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return is_bool($other);
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return is_null($other);
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return is_array($other);
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return is_object($other);
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return is_resource($other);
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return is_scalar($other);
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* Returns a string representation of the constraint.
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public function toString()