endtoend-test-psl/tests/Psl/Str/Grapheme/StartsWithCiTest.php

<?php

declare(strict_types=1);

namespace Psl\Tests\Str\Grapheme;

use PHPUnit\Framework\TestCase;
use Psl\Str\Grapheme;

final class StartsWithCiTest extends TestCase
{
    /**
     * @dataProvider provideData
     */
    public function testStartsWithCi(bool $expected, string $haystack, string $prefix): void
    {
        static::assertSame($expected, Grapheme\starts_with_ci($haystack, $prefix));
    }

    public function provideData(): array
    {
        return [
            [true, 'Hello, World', 'Hello', ],
            [false, 'Hello, World', 'world', ],
            [false, 'Hello, World', '', ],
            [false, 'hello, world', 'hey', ],
            [true, 'azjezz', 'az', ],
            [true, 'azjezz', 'Az', ],
            [false, 'مرحبا بكم', 'بكم', ],
            [true, 'مرحبا بكم', 'مرحبا', ],
            [true, 'مرحبا سيف', 'مرحبا', 3],
            [false, 'مرحبا سيف', 'سيف', 3],
            [true, 'اهلا بكم', 'اهلا', 2],
            [true, 'héllö wôrld', 'héllö', ],
            [false, 'héllö wôrld', 'hello', ],
            [true, 'fôo', 'fôo', ],
            [true, 'fôo', 'f', ],
            [true, 'fôo', 'fô', ],
        ];
    }
}