ci-bonfire / Sprint

system/libraries/Unit_test.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 51 and the first side effect is on line 38.

/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2015, 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. (http://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	http://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		http://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))
		{
			$expected = str_replace('is_double', 'is_float', $expected);
			$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', 'test_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);
}