<?php

namespace MediaWiki\Extension\Math\Tests\TexVC;

use MediaWiki\Extension\Math\TexVC\Parser;
use MediaWikiUnitTestCase;

/**
 * @covers \MediaWiki\Extension\Math\TexVC\Parser
 */
class RenderTest extends MediaWikiUnitTestCase {
	private $testCases;

	protected function setUp(): void {
		parent::setUp();
		$this->testCases = [
			[
				'in' => '',
			],
			[
				'in' => 'a',
			],
			[
				'in' => 'a^2',
				'out' => 'a^{2}'
			],
			[
				'in' => 'a^2+b^{2}',
				'out' => 'a^{2}+b^{2}'
			],
			[
				'in' => 'a^{2}+b^{2}',
			],
			[
				'in' => 'l_a^2+l_b^2=l_c^2',
				'out' => 'l_{a}^{2}+l_{b}^{2}=l_{c}^{2}'
			],
			[
				'in' => '\\sin(x)+{}{}\\cos(x)^2 newcommand',
				'out' => '\\sin(x)+{}{}\\cos(x)^{2}newcommand'
			]

		];
	}

	public function testRendering() {
		$parser = new Parser();

		foreach ( $this->testCases as $case ) {
			$in = $case['in'];
			$out = $case['out'] ?? $in;
			$result = $parser->parse( $in );
			$rendered = $result->render();
			$this->assertEquals( $out, $rendered, 'Error rendering input: '
				. $in . ' rendered output is: ' . $rendered . ' should be: ' . $out );
		}
	}
}