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amp/test/DelayedTest.php

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<?php
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namespace Amp\Test;
use Amp\Delayed;
use Amp\Loop;
use function Amp\Promise\wait;
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class DelayedTest extends BaseTest
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{
public function testDelayed()
{
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$time = 100;
$value = "test";
$start = \microtime(true);
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Loop::run(static function () use (&$result, $time, $value) {
$promise = new Delayed($time, $value);
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$callback = static function ($exception, $value) use (&$result) {
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$result = $value;
};
$promise->onResolve($callback);
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});
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$this->assertGreaterThanOrEqual($time - 1 /* 1ms grace period */, (\microtime(true) - $start) * 1000);
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$this->assertSame($value, $result);
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}
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public function testUnreference()
{
$time = 100;
$value = "test";
$start = \microtime(true);
$invoked = false;
Loop::run(static function () use (&$invoked, $time, $value, &$promise) {
$promise = new Delayed($time, $value);
$promise->unreference();
$callback = static function () use (&$invoked) {
$invoked = true;
};
$promise->onResolve($callback);
});
$this->assertLessThanOrEqual($time - 1 /* 1ms grace period */, (\microtime(true) - $start) * 1000);
$this->assertFalse($invoked);
// clear watcher
$promise->reference();
wait($promise);
}
/**
* @depends testUnreference
*/
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public function testReference()
{
$time = 100;
$value = "test";
$start = \microtime(true);
$invoked = false;
Loop::run(static function () use (&$invoked, $time, $value) {
$promise = new Delayed($time, $value);
$promise->unreference();
$promise->reference();
$callback = static function ($exception, $value) use (&$invoked) {
$invoked = true;
};
$promise->onResolve($callback);
});
$this->assertGreaterThanOrEqual($time - 1 /* 1ms grace period */, (\microtime(true) - $start) * 1000);
$this->assertTrue($invoked);
}
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}