<?php
// This file is part of Stack - http://stack.maths.ed.ac.uk/
//
// Stack 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.
//
// Stack 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 Stack.  If not, see <http://www.gnu.org/licenses/>.

namespace qtype_stack;

use qtype_stack_testcase;
use stack_maths;
use stack_utils;

defined('MOODLE_INTERNAL') || die();

require_once(__DIR__ . '/fixtures/test_base.php');
require_once(__DIR__ . '/../stack/mathsoutput/mathsoutput.class.php');
require_once(__DIR__ . '/../doc/docslib.php');

// Unit tests for the MathJax maths output class.
//
// @copyright 2012 The Open University.
// @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later.

/**
 * @group qtype_stack
 * @covers \stack_maths_output_mathjax
 */
class mathsoutputmathjax_test extends qtype_stack_testcase {

    public function test_maths_output_mathsjax() {

        // MathJax output is the default.
        $this->assert_content_with_maths_equals('Your answer needs to be a single fraction of the form \( {a}\over{b} \). ',
                stack_string('ATSingleFrac_part'));

        // @codingStandardsIgnoreStart
        $this->assert_content_with_maths_equals("<p><code>\\(x^2\\)</code> gives \\(x^2\\).</p>\n",
                stack_docs_render_markdown('`\(x^2\)` gives \(x^2\).'));
        // @codingStandardsIgnoreEnd

        $this->assertEquals('What is \(x^2\)?', stack_maths::process_display_castext('What is \(x^2\)?'));

        $this->resetAfterTest();
        set_config('replacedollars', '1', 'qtype_stack');
        stack_utils::clear_config_cache();
        $this->assertEquals('What is \(x^2\) or \[x^2\]?', stack_maths::process_display_castext('What is $x^2$ or $$x^2$$?'));
        stack_utils::clear_config_cache();
    }
}
