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amp/test/Pipeline/DiscardTest.php

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<?php
namespace Amp\Test\Pipeline;
use Amp\PHPUnit\AsyncTestCase;
use Amp\Pipeline;
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use function Amp\await;
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class DiscardTest extends AsyncTestCase
{
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public function testEmpty(): void
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{
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$this->assertSame(0, await(Pipeline\discard(Pipeline\fromIterable([]))));
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}
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public function testCount(): void
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{
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$this->assertSame(3, await(Pipeline\discard(Pipeline\fromIterable(['a', 1, false], 1))));
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}
}