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23 lines
532 B
PHP
23 lines
532 B
PHP
<?php
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declare(strict_types=1);
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namespace Psl\Tests\Dict;
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use PHPUnit\Framework\TestCase;
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use Psl\Dict;
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use Psl\Iter;
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final class FromKeysTest extends TestCase
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{
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public function testFromKeys(): void
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{
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$actual = Dict\from_keys(['hello', 'world'], static fn (string $_key) => false);
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static::assertSame('hello', Iter\first_key($actual));
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static::assertSame('world', Iter\last_key($actual));
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static::assertFalse(Iter\first($actual));
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static::assertFalse(Iter\last($actual));
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}
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}
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