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34 lines
745 B
PHP
34 lines
745 B
PHP
<?php
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declare(strict_types=1);
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namespace Psl\Tests\Iter;
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use PHPUnit\Framework\TestCase;
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use Psl\Iter;
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final class LastKeyTest extends TestCase
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{
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/**
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* @dataProvider provideData
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*/
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public function testLastKey($expected, iterable $iterable): void
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{
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$result = Iter\last_key($iterable);
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static::assertSame($expected, $result);
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}
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public function provideData(): iterable
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{
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yield [3, [1, 2, 3, 4]];
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yield [3, Iter\to_iterator([1, 2, 3, 4])];
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yield [3, Iter\range(1, 4)];
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yield [4, Iter\range(4, 8)];
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yield [null, []];
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yield [0, [null]];
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yield [1, [null, null]];
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yield [[1, 2], (static fn () => yield [1, 2] => 'hello')()];
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}
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}
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