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paulgoughbooks_old / trunk / system / Test / DOMParser.php
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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) 2014-2019 British Columbia Institute of Technology * Copyright (c) 2019-2020 CodeIgniter Foundation * * 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 CodeIgniter Dev Team * @copyright 2019-2020 CodeIgniter Foundation * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 4.0.0 * @filesource */ namespace CodeIgniter\Test; /** * Load a response into a DOMDocument for testing assertions based on that */ class DOMParser { /** * DOM for the body, * * @var \DOMDocument */ protected $dom; /** * Constructor. * * @throws \BadMethodCallException */ public function __construct() { if (! extension_loaded('DOM')) { // always there in travis-ci // @codeCoverageIgnoreStart throw new \BadMethodCallException('DOM extension is required, but not currently loaded.'); // @codeCoverageIgnoreEnd } $this->dom = new \DOMDocument('1.0', 'utf-8'); } /** * Returns the body of the current document. * * @return string */ public function getBody(): string { return $this->dom->saveHTML(); } /** * Sets a string as the body that we want to work with. * * @param string $content * * @return $this */ public function withString(string $content) { // converts all special characters to utf-8 $content = mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'); //turning off some errors libxml_use_internal_errors(true); if (! $this->dom->loadHTML($content)) { // unclear how we would get here, given that we are trapping libxml errors // @codeCoverageIgnoreStart libxml_clear_errors(); throw new \BadMethodCallException('Invalid HTML'); // @codeCoverageIgnoreEnd } // ignore the whitespace. $this->dom->preserveWhiteSpace = false; return $this; } /** * Loads the contents of a file as a string * so that we can work with it. * * @param string $path * * @return \CodeIgniter\Test\DOMParser */ public function withFile(string $path) { if (! is_file($path)) { throw new \InvalidArgumentException(basename($path) . ' is not a valid file.'); } $content = file_get_contents($path); return $this->withString($content); } /** * Checks to see if the text is found within the result. * * @param string $search * @param string $element * * @return boolean */ public function see(string $search = null, string $element = null): bool { // If Element is null, we're just scanning for text if (is_null($element)) { $content = $this->dom->saveHTML($this->dom->documentElement); return mb_strpos($content, $search) !== false; } $result = $this->doXPath($search, $element); return (bool)$result->length; } /** * Checks to see if the text is NOT found within the result. * * @param string $search * @param string|null $element * * @return boolean */ public function dontSee(string $search = null, string $element = null): bool { return ! $this->see($search, $element); } /** * Checks to see if an element with the matching CSS specifier * is found within the current DOM. * * @param string $element * * @return boolean */ public function seeElement(string $element): bool { return $this->see(null, $element); } /** * Checks to see if the element is available within the result. * * @param string $element * * @return boolean */ public function dontSeeElement(string $element): bool { return $this->dontSee(null, $element); } /** * Determines if a link with the specified text is found * within the results. * * @param string $text * @param string|null $details * * @return boolean */ public function seeLink(string $text, string $details = null): bool { return $this->see($text, 'a' . $details); } /** * Checks for an input named $field with a value of $value. * * @param string $field * @param string $value * * @return boolean */ public function seeInField(string $field, string $value): bool { $result = $this->doXPath(null, 'input', ["[@value=\"{$value}\"][@name=\"{$field}\"]"]); return (bool)$result->length; } /** * Checks for checkboxes that are currently checked. * * @param string $element * * @return boolean */ public function seeCheckboxIsChecked(string $element): bool { $result = $this->doXPath(null, 'input' . $element, [ '[@type="checkbox"]', '[@checked="checked"]', ]); return (bool)$result->length; } //-------------------------------------------------------------------- /** * Search the DOM using an XPath expression. * * @param string $search * @param string $element * @param array $paths * @return type */ protected function doXPath(string $search = null, string $element, array $paths = []) { // Otherwise, grab any elements that match // the selector $selector = $this->parseSelector($element); $path = ''; // By ID if (! empty($selector['id'])) { $path = empty($selector['tag']) ? "id(\"{$selector['id']}\")" : "//body//{$selector['tag']}[@id=\"{$selector['id']}\"]"; } // By Class else if (! empty($selector['class'])) { $path = empty($selector['tag']) ? "//*[@class=\"{$selector['class']}\"]" : "//body//{$selector['tag']}[@class=\"{$selector['class']}\"]"; } // By tag only else if (! empty($selector['tag'])) { $path = "//body//{$selector['tag']}"; } if (! empty($selector['attr'])) { foreach ($selector['attr'] as $key => $value) { $path .= "[@{$key}=\"{$value}\"]"; } } // $paths might contain a number of different // ready to go xpath portions to tack on. if (! empty($paths) && is_array($paths)) { foreach ($paths as $extra) { $path .= $extra; } } if (! is_null($search)) { $path .= "[contains(., \"{$search}\")]"; } $xpath = new \DOMXPath($this->dom); return $xpath->query($path); } /** * Look for the a selector in the passed text. * * @param string $selector * @return type */ public function parseSelector(string $selector) { $tag = null; $id = null; $class = null; $attr = null; // ID? if ($pos = strpos($selector, '#') !== false) { list($tag, $id) = explode('#', $selector); } // Attribute elseif (strpos($selector, '[') !== false && strpos($selector, ']') !== false) { $open = strpos($selector, '['); $close = strpos($selector, ']'); $tag = substr($selector, 0, $open); $text = substr($selector, $open + 1, $close - 2); // We only support a single attribute currently $text = explode(',', $text); $text = trim(array_shift($text)); list($name, $value) = explode('=', $text); $name = trim($name); $value = trim($value); $attr = [$name => trim($value, '] ')]; } // Class? elseif ($pos = strpos($selector, '.') !== false) { list($tag, $class) = explode('.', $selector); } // Otherwise, assume the entire string is our tag else { $tag = $selector; } return [ 'tag' => $tag, 'id' => $id, 'class' => $class, 'attr' => $attr, ]; } } |
Commits for paulgoughbooks_old/trunk/system/Test/DOMParser.php
Revision | Author | Commited | Message |
---|---|---|---|
2 | tporter | Tue 03 Nov, 2020 08:50:21 +0000 | Migration of Paul Goughs Books site to Codeignitor 4 |