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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Helper for privacy tests.
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 *
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 * @package    core_question
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 * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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defined('MOODLE_INTERNAL') || die();
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use \core_privacy\local\request\writer;
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/**
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 * Helper for privacy tests.
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 *
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 * @package    core_question
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 * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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trait core_question_privacy_helper {
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    /**
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     * Assert that the question usage in the supplied slot matches the expected format
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     * and usage for a question.
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     *
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     * @param   \question_usage_by_activity $quba The Question Usage to test against.
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     * @param   int                         $slotno The slot number to compare
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     * @param   \question_display_options   $options    The display options used for formatting.
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     * @param   \stdClass                   $data The data to check.
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     */
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    public function assert_question_slot_equals(
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            \question_usage_by_activity $quba,
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            $slotno,
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            \question_display_options $options,
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            $data
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        ) {
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        $attempt = $quba->get_question_attempt($slotno);
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        $question = $attempt->get_question(false);
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        // Check the question data exported.
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        $this->assertEquals($data->name, $question->name);
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        $this->assertEquals($data->question, $question->questiontext);
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        // Check the answer exported.
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        $this->assertEquals($attempt->get_response_summary(), $data->answer);
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        if ($options->marks != \question_display_options::HIDDEN) {
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            $this->assertEquals($attempt->get_mark(), $data->mark);
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        } else {
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            $this->assertFalse(isset($data->mark));
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        }
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        if ($options->flags != \question_display_options::HIDDEN) {
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            $this->assertEquals($attempt->is_flagged(), (int) $data->flagged);
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        } else {
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            $this->assertFalse(isset($data->flagged));
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        }
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        if ($options->generalfeedback != \question_display_options::HIDDEN) {
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            $this->assertEquals($question->format_generalfeedback($attempt), $data->generalfeedback);
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        } else {
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            $this->assertFalse(isset($data->generalfeedback));
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        }
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    }
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    /**
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     * Assert that a question attempt was exported.
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     *
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     * @param   \context    $context The context which the attempt should be in
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     * @param   array       $subcontext The base of the export
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     * @param   question_usage_by_activity  $quba The question usage expected
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     * @param   \question_display_options   $options    The display options used for formatting.
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     * @param   \stdClass   $user The user exported
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     */
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    public function assert_question_attempt_exported(\context $context, array $subcontext, $quba, $options, $user) {
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        $usagecontext = array_merge(
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            $subcontext,
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            [get_string('questions', 'core_question')]
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        );
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        /** @var \core_privacy\tests\request\content_writer $writer */
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        $writer = writer::with_context($context);
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        foreach ($quba->get_slots() as $slotno) {
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            $data = $writer->get_data(array_merge($usagecontext, [$slotno]));
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            $this->assert_question_slot_equals($quba, $slotno, $options, $data);
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        }
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    }
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}