Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core;

/**

 * Tests our html2text hacks

 *

 * Note: includes original tests from testweblib.php

 *

 * @package    core

 * @category   test

 * @copyright  2012 Petr Skoda {@link http://skodak.org}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class html2text_test extends \basic_testcase {

    /**

     * ALT as image replacements.

     */

    public function test_images(): void {

        $this->assertSame('[edit]', html_to_text('<img src="edit.png" alt="edit" />'));

        $text = 'xx<img src="gif.gif" alt="some gif" />xx';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, 'xx[some gif]xx');

    }

    /**

     * No magic quotes messing.

     */

    public function test_no_strip_slashes(): void {

        $this->assertSame('[\edit]', html_to_text('<img src="edit.png" alt="\edit" />'));

        $text = '\\magic\\quotes\\are\\\\horrible';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, $text);

    }

    /**

     * core_text integration.

     */

    public function test_core_text(): void {

        $text = '<strong>Žluťoučký koníček</strong>';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, 'ŽLUŤOUČKÝ KONÍČEK');

    }

    /**

     * Protect 0.

     */

    public function test_zero(): void {

        $text = '0';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, $text);

        $this->assertSame('0', html_to_text('0'));

    }

    /**

     * Test the links list enumeration.

     */

    public function test_build_link_list(): void {

        // Note the trailing whitespace left intentionally in the text after first link.

        $text = 'Total of <a title="List of integrated issues"

            href="http://tr.mdl.org/sh.jspa?r=1&j=p+%3D+%22I+d%22+%3D">     ' . '

            <strong>27 issues</strong></a> and <a href="http://another.url/?f=a&amp;b=2">some</a> other

have been fixed <strong><a href="http://third.url/view.php">last week</a></strong>';

        // Do not collect links.

        $result = html_to_text($text, 5000, false);

        $this->assertSame('Total of 27 ISSUES and some other have been fixed LAST WEEK', $result);

        // Collect and enumerate links.

        $result = html_to_text($text, 5000, true);

        $this->assertSame(0, strpos($result, 'Total of 27 ISSUES [1] and some [2] other have been fixed LAST WEEK [3]'));

        $this->assertSame(false, strpos($result, '[0]'));

        $this->assertSame(1, preg_match('|^'.preg_quote('[1] http://tr.mdl.org/sh.jspa?r=1&j=p+%3D+%22I+d%22+%3D').'$|m', $result));

        $this->assertSame(1, preg_match('|^'.preg_quote('[2] http://another.url/?f=a&b=2').'$|m', $result));

        $this->assertSame(1, preg_match('|^'.preg_quote('[3] http://third.url/view.php').'$|m', $result));

        $this->assertSame(false, strpos($result, '[4]'));

        // Test multiple occurrences of the same URL.

        $text = '<p>See <a href="http://moodle.org">moodle.org</a>,

            <a href="http://www.google.fr">google</a>, <a href="http://www.univ-lemans.fr">univ-lemans</a>

            and <a href="http://www.google.fr">google</a>.

            Also try <a href="https://www.google.fr">google via HTTPS</a>.';

        $result = html_to_text($text, 5000, true);

        $this->assertSame(0, strpos($result, 'See moodle.org [1], google [2], univ-lemans [3] and google [2]. Also try google via HTTPS [4].'));

        $this->assertSame(false, strpos($result, '[0]'));

        $this->assertSame(1, preg_match('|^'.preg_quote('[1] http://moodle.org').'$|m', $result));

        $this->assertSame(1, preg_match('|^'.preg_quote('[2] http://www.google.fr').'$|m', $result));

        $this->assertSame(1, preg_match('|^'.preg_quote('[3] http://www.univ-lemans.fr').'$|m', $result));

        $this->assertSame(1, preg_match('|^'.preg_quote('[4] https://www.google.fr').'$|m', $result));

        $this->assertSame(false, strpos($result, '[5]'));

    }

    /**

     * Various invalid HTML typed by users that ignore html strict.

     **/

    public function test_invalid_html(): void {

        $text = 'Gin & Tonic';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, $text);

        $text = 'Gin > Tonic';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, $text);

        $text = 'Gin < Tonic';

        $result = html_to_text($text, null, false, false);

        $this->assertSame($result, $text);

    }

    /**

     * Basic text formatting.

     */

    public function test_simple(): void {

        $this->assertSame("_Hello_ WORLD!\n", html_to_text('<p><i>Hello</i> <b>world</b>!</p>'));

        $this->assertSame("All the WORLD’S a stage.\n\n-- William Shakespeare\n", html_to_text('<p>All the <strong>world’s</strong> a stage.</p><p>-- William Shakespeare</p>'));

        $this->assertSame("HELLO WORLD!\n\n", html_to_text('<h1>Hello world!</h1>'));

        $this->assertSame("Hello\nworld!", html_to_text('Hello<br />world!'));

    }

    /**

     * Test line wrapping.

     */

    public function test_text_nowrap(): void {

        $long = "Here is a long string, more than 75 characters long, since by default html_to_text wraps text at 75 chars.";

        $wrapped = "Here is a long string, more than 75 characters long, since by default\nhtml_to_text wraps text at 75 chars.";

        $this->assertSame($long, html_to_text($long, 0));

        $this->assertSame($wrapped, html_to_text($long));

    }

    /**

     * Whitespace removal.

     */

    public function test_trailing_whitespace(): void {

        $this->assertSame('With trailing whitespace and some more text', html_to_text("With trailing whitespace   \nand some   more text", 0));

    }

    /**

     * PRE parsing.

     */

    public function test_html_to_text_pre_parsing_problem(): void {

        $strorig = 'Consider the following function:<br /><pre><span style="color: rgb(153, 51, 102);">void FillMeUp(char* in_string) {'.

            '<br />  int i = 0;<br />  while (in_string[i] != \'\0\') {<br />    in_string[i] = \'X\';<br />    i++;<br />  }<br />'.

            '}</span></pre>What would happen if a non-terminated string were input to this function?<br /><br />';

        // Note, the spaces in the <pre> section are Unicode NBSPs - they may not be displayed in your editor.

        $strconv = 'Consider the following function:

void FillMeUp(char* in_string) {

  int i = 0;

  while (in_string[i] != \'\0\') {

    in_string[i] = \'X\';

    i++;

  }

}

What would happen if a non-terminated string were input to this function?

';

        $this->assertSame($strconv, html_to_text($strorig));

    }

    /**

     * Scripts should be stripped.

     */

    public function test_strip_scripts(): void {

        $this->assertSame('Interesting text',

                html_to_text('Interesting <script type="text/javascript">var what_a_mess = "Yuck!";</script> text', 0));

    }

}