endtoend-test-psl/tests/Psl/Math/CosTest.php

<?php

declare(strict_types=1);

namespace Psl\Tests\Math;

use PHPUnit\Framework\TestCase;
use Psl\Math;

class CosTest extends TestCase
{
    /**
     * @dataProvider provideData
     */
    public function testCos(float $expected, float $number): void
    {
        self::assertSame($expected, Math\cos($number));
    }

    public function provideData(): array
    {
        return [
            [
                0.5403023058681398,
                1.0
            ],

            [
                1.0,
                0.0
            ],

            [
                0.10291095660695612,
                45.45,
            ],

            [
                0.28366218546322625,
                -5
            ],

            [
                -0.9983206000589924,
                -15.65
            ]
        ];
    }
}