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<?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/>.

/**
 * Portfolio lib tests.
 *
 * @package    core
 * @subpackage phpunit
 * @copyright  2014 Frédéric Massart
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();
global $CFG;

require_once($CFG->libdir.'/portfoliolib.php');
require_once($CFG->libdir.'/portfolio/formats.php');

/**
 * Portfolio lib testcase.
 *
 * @copyright  2014 Frédéric Massart
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class core_portfoliolib_testcase extends advanced_testcase {

public function test_portfolio_rewrite_pluginfile_urls() {
        $this->resetAfterTest();

// File info.
        $context = context_system::instance();
        $component = 'core_test';
        $filearea = 'fixture';
        $filepath = '/';
        $itemid = 0;
        $filenameimg = 'file.png';
        $filenamepdf = 'file.pdf';

// Store 2 test files in the pool.
        $fs = get_file_storage();
        $filerecord = array(
            'contextid' => $context->id,
            'component' => $component,
            'filearea'  => $filearea,
            'itemid'    => $itemid,
            'filepath'  => $filepath,
            'filename'  => $filenameimg,
        );
        $fileimg = $fs->create_file_from_string($filerecord, 'test');

$filerecord['filename']  = $filenamepdf;
        $filepdf = $fs->create_file_from_string($filerecord, 'test');

// Test that nothing is matching.
 $format = '';
 $options = null;
 $input = '<div>Here, the <a href="nowhere">@@PLUGINFILE@@' . $filepath . $filenamepdf .
 ' is</a> not supposed to be an actual URL placeholder.</div>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($input, $output);

$input = '<div>Here, the <img src="nowhere" />@@PLUGINFILE@@' . $filepath . $filenameimg .
 ' is</a> not supposed to be an actual URL placeholder.</div>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($input, $output);

// Now use our dummy format.
        $format = new core_portfolio_format_dummytest();
        $options = null;

// Test that the link is matching.
 $input = 'Come and <a href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">join us!</a>?';
 $expected = 'Come and <a href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>?';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = 'Come and <a href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">join us!</a>?';
 $expected = 'Come and <a href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>?';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

// Test that the image is matching.
 $input = 'Here is an image <img src="@@PLUGINFILE@@' . $filepath . $filenameimg . '">'; // No trailing slash.
 $expected = 'Here is an image <img src="files/' . $filenameimg . '"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = 'Here is an image <img src="@@PLUGINFILE@@' . $filepath . $filenameimg . '" />'; // Trailing slash.
 $expected = 'Here is an image <img src="files/' . $filenameimg . '"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

// Test that the attributes are kept.
 $input = '<a title="hurray!" href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '" target="_blank">join us!</a>';
 $expected = '<a title="hurray!" href="files/' . $filenamepdf . '" target="_blank">' . $filenamepdf . '</a>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = '<img alt="before" src="@@PLUGINFILE@@' . $filepath . $filenameimg . '" title="after"/>';
 $expected = '<img alt="before" src="files/' . $filenameimg . '" title="after"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

// Test with more tags around.
 $input = '<a href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">' .
 'join us!</a>';
 $expected = '<a href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = '<img src="@@PLUGINFILE@@' . $filepath . $filenameimg . '"/>';
 $expected = '<img src="files/' . $filenameimg . '"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

// Test multiple on same line.
 $input = '<a rel="1" href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">join us!</a>' .
 '<a rel="2" href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">join us!</a>';
 $expected = '<a rel="1" href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>' .
 '<a rel="2" href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = '<img rel="1" src="@@PLUGINFILE@@' . $filepath . $filenameimg . '"/>' .
 '<img rel="2" src="@@PLUGINFILE@@' . $filepath . $filenameimg . '"/>';
 $expected = '<img rel="1" src="files/' . $filenameimg . '"/><img rel="2" src="files/' . $filenameimg . '"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);

$input = '<a href="@@PLUGINFILE@@' . $filepath . $filenamepdf . '">join us!</a>' .
 '<img src="@@PLUGINFILE@@' . $filepath . $filenameimg . '"/>';
 $expected = '<a href="files/' . $filenamepdf . '">' . $filenamepdf . '</a>' .
 '<img src="files/' . $filenameimg . '"/>';
 $output = portfolio_rewrite_pluginfile_urls($input, $context->id, $component, $filearea, $itemid, $format, $options);
 $this->assertSame($expected, $output);
 }
}

/**
 * Dummy portfolio format.
 *
 * @copyright  2014 Frédéric Massart
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class core_portfolio_format_dummytest extends portfolio_format {

public static function file_output($file, $options = null) {
        if (isset($options['attributes']) && is_array($options['attributes'])) {
            $attributes = $options['attributes'];
        } else {
            $attributes = array();
        }
        $path = 'files/' . $file->get_filename();
        return self::make_tag($file, $path, $attributes);
    }

}