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<?php

/**

 * CodeIgniter

 *

 * An open source application development framework for PHP

 *

 * This content is released under the MIT License (MIT)

 *

 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 *

 * @package	CodeIgniter

 * @author	EllisLab Dev Team

 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)

 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)

 * @license	http://opensource.org/licenses/MIT	MIT License

 * @link	https://codeigniter.com

 * @since	Version 1.3.1

 * @filesource

 */

defined('BASEPATH') OR exit('No direct script access allowed');

/**

 * Unit Testing Class

 *

 * Simple testing class

 *

 * @package		CodeIgniter

 * @subpackage	Libraries

 * @category	UnitTesting

 * @author		EllisLab Dev Team

 * @link		https://codeigniter.com/user_guide/libraries/unit_testing.html

 */

class CI_Unit_test {

	/**

	 * Active flag

	 *

	 * @var	bool

	 */

	public $active = TRUE;

	/**

	 * Test results

	 *

	 * @var	array

	 */

	public $results = array();

	/**

	 * Strict comparison flag

	 *

	 * Whether to use === or == when comparing

	 *

	 * @var	bool

	 */

	public $strict = FALSE;

	/**

	 * Template

	 *

	 * @var	string

	 */

	protected $_template = NULL;

	/**

	 * Template rows

	 *

	 * @var	string

	 */

	protected $_template_rows = NULL;

	/**

	 * List of visible test items

	 *

	 * @var	array

	 */

	protected $_test_items_visible	= array(

		'test_name',

		'test_datatype',

		'res_datatype',

		'result',

		'file',

		'line',

		'notes'

	);

	// --------------------------------------------------------------------

	/**

	 * Constructor

	 *

	 * @return	void

	 */

	public function __construct()

	{

		log_message('info', 'Unit Testing Class Initialized');

	}

	// --------------------------------------------------------------------

	/**

	 * Run the tests

	 *

	 * Runs the supplied tests

	 *

	 * @param	array	$items

	 * @return	void

	 */

	public function set_test_items($items)

	{

		if ( ! empty($items) && is_array($items))

		{

			$this->_test_items_visible = $items;

		}

	}

	// --------------------------------------------------------------------

	/**

	 * Run the tests

	 *

	 * Runs the supplied tests

	 *

	 * @param	mixed	$test

	 * @param	mixed	$expected

	 * @param	string	$test_name

	 * @param	string	$notes

	 * @return	string

	 */

	public function run($test, $expected = TRUE, $test_name = 'undefined', $notes = '')

	{

		if ($this->active === FALSE)

		{

			return FALSE;

		}

		if (in_array($expected, array('is_object', 'is_string', 'is_bool', 'is_true', 'is_false', 'is_int', 'is_numeric', 'is_float', 'is_double', 'is_array', 'is_null', 'is_resource'), TRUE))

		{

			$result = $expected($test);

			$extype = str_replace(array('true', 'false'), 'bool', str_replace('is_', '', $expected));

		}

		else

		{

			$result = ($this->strict === TRUE) ? ($test === $expected) : ($test == $expected);

			$extype = gettype($expected);

		}

		$back = $this->_backtrace();

		$report = array (

			'test_name'     => $test_name,

			'test_datatype' => gettype($test),

			'res_datatype'  => $extype,

			'result'        => ($result === TRUE) ? 'passed' : 'failed',

			'file'          => $back['file'],

			'line'          => $back['line'],

			'notes'         => $notes

		);

		$this->results[] = $report;

		return $this->report($this->result(array($report)));

	}

	// --------------------------------------------------------------------

	/**

	 * Generate a report

	 *

	 * Displays a table with the test data

	 *

	 * @param	array	 $result

	 * @return	string

	 */

	public function report($result = array())

	{

		if (count($result) === 0)

		{

			$result = $this->result();

		}

		$CI =& get_instance();

		$CI->load->language('unit_test');

		$this->_parse_template();

		$r = '';

		foreach ($result as $res)

		{

			$table = '';

			foreach ($res as $key => $val)

			{

				if ($key === $CI->lang->line('ut_result'))

				{

					if ($val === $CI->lang->line('ut_passed'))

					{

						$val = '<span style="color: #0C0;">'.$val.'</span>';

					}

					elseif ($val === $CI->lang->line('ut_failed'))

					{

						$val = '<span style="color: #C00;">'.$val.'</span>';

					}

				}

				$table .= str_replace(array('{item}', '{result}'), array($key, $val), $this->_template_rows);

			}

			$r .= str_replace('{rows}', $table, $this->_template);

		}

		return $r;

	}

	// --------------------------------------------------------------------

	/**

	 * Use strict comparison

	 *

	 * Causes the evaluation to use === rather than ==

	 *

	 * @param	bool	$state

	 * @return	void

	 */

	public function use_strict($state = TRUE)

	{

		$this->strict = (bool) $state;

	}

	// --------------------------------------------------------------------

	/**

	 * Make Unit testing active

	 *

	 * Enables/disables unit testing

	 *

	 * @param	bool

	 * @return	void

	 */

	public function active($state = TRUE)

	{

		$this->active = (bool) $state;

	}

	// --------------------------------------------------------------------

	/**

	 * Result Array

	 *

	 * Returns the raw result data

	 *

	 * @param	array	$results

	 * @return	array

	 */

	public function result($results = array())

	{

		$CI =& get_instance();

		$CI->load->language('unit_test');

		if (count($results) === 0)

		{

			$results = $this->results;

		}

		$retval = array();

		foreach ($results as $result)

		{

			$temp = array();

			foreach ($result as $key => $val)

			{

				if ( ! in_array($key, $this->_test_items_visible))

				{

					continue;

				}

				elseif (in_array($key, array('test_name', 'test_datatype', 'res_datatype', 'result'), TRUE))

				{

					if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$val), FALSE)))

					{

						$val = $line;

					}

				}

				$temp[$CI->lang->line('ut_'.$key, FALSE)] = $val;

			}

			$retval[] = $temp;

		}

		return $retval;

	}

	// --------------------------------------------------------------------

	/**

	 * Set the template

	 *

	 * This lets us set the template to be used to display results

	 *

	 * @param	string

	 * @return	void

	 */

	public function set_template($template)

	{

		$this->_template = $template;

	}

	// --------------------------------------------------------------------

	/**

	 * Generate a backtrace

	 *

	 * This lets us show file names and line numbers

	 *

	 * @return	array

	 */

	protected function _backtrace()

	{

		$back = debug_backtrace();

		return array(

			'file' => (isset($back[1]['file']) ? $back[1]['file'] : ''),

			'line' => (isset($back[1]['line']) ? $back[1]['line'] : '')

		);

	}

	// --------------------------------------------------------------------

	/**

	 * Get Default Template

	 *

	 * @return	string

	 */

	protected function _default_template()

	{

		$this->_template = "\n".'<table style="width:100%; font-size:small; margin:10px 0; border-collapse:collapse; border:1px solid #CCC;">{rows}'."\n</table>";

		$this->_template_rows = "\n\t<tr>\n\t\t".'<th style="text-align: left; border-bottom:1px solid #CCC;">{item}</th>'

					."\n\t\t".'<td style="border-bottom:1px solid #CCC;">{result}</td>'."\n\t</tr>";

	}

	// --------------------------------------------------------------------

	/**

	 * Parse Template

	 *

	 * Harvests the data within the template {pseudo-variables}

	 *

	 * @return	void

	 */

	protected function _parse_template()

	{

		if ($this->_template_rows !== NULL)

		{

			return;

		}

		if ($this->_template === NULL OR ! preg_match('/\{rows\}(.*?)\{\/rows\}/si', $this->_template, $match))

		{

			$this->_default_template();

			return;

		}

		$this->_template_rows = $match[1];

		$this->_template = str_replace($match[0], '{rows}', $this->_template);

	}

}

/**

 * Helper function to test boolean TRUE

 *

 * @param	mixed	$test

 * @return	bool

 */

function is_true($test)

{

	return ($test === TRUE);

}

/**

 * Helper function to test boolean FALSE

 *

 * @param	mixed	$test

 * @return	bool

 */

function is_false($test)

{

	return ($test === FALSE);

}