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28 lines
589 B
PHP
28 lines
589 B
PHP
<?php
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declare(strict_types=1);
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namespace Psl\Tests\Arr;
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use PHPUnit\Framework\TestCase;
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use Psl;
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use Psl\Arr;
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final class TakeTest extends TestCase
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{
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public function testTake(): void
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{
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$result = Arr\take([-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], 3);
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static::assertSame([-5, -4, -3], $result);
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}
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public function testTakeThrowsIfLengthIsNegative(): void
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{
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$this->expectException(Psl\Exception\InvariantViolationException::class);
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$this->expectExceptionMessage('Length must be non-negative.');
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Arr\take([1, 2, 3], -3);
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}
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}
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