FunctionRejectTest.php

<?php

namespace React\Tests\Promise\Timer;

use React\EventLoop\Loop;
use React\Promise\Timer;

class FunctionRejectTest extends TestCase
{
    public function testPromiseIsPendingWithoutRunningLoop()
    {
        $promise = Timer\reject(0.01);

        $this->expectPromisePending($promise);
    }

    public function testPromiseExpiredIsPendingWithoutRunningLoop()
    {
        $promise = Timer\reject(-1);

        $this->expectPromisePending($promise);
    }

    public function testPromiseWillBeRejectedOnTimeout()
    {
        $promise = Timer\reject(0.01);

        Loop::run();

        $this->expectPromiseRejected($promise);
    }

    public function testPromiseExpiredWillBeRejectedOnTimeout()
    {
        $promise = Timer\reject(-1);

        Loop::run();

        $this->expectPromiseRejected($promise);
    }

    public function testCancellingPromiseWillRejectTimer()
    {
        $promise = Timer\reject(0.01);

        $promise->cancel();

        $this->expectPromiseRejected($promise);
    }

    public function testRejectWithInvalidLoopThrows()
    {
        $this->setExpectedException('InvalidArgumentException', 'Argument #2 ($loop) expected null|React\EventLoop\LoopInterface');
        Timer\reject(1.0, 42);
    }

    public function testWaitingForPromiseToRejectDoesNotLeaveGarbageCycles()
    {
        if (class_exists('React\Promise\When')) {
            $this->markTestSkipped('Not supported on legacy Promise v1 API');
        }

        gc_collect_cycles();
        gc_collect_cycles(); // clear twice to avoid leftovers in PHP 7.4 with ext-xdebug and code coverage turned on

        $promise = Timer\reject(0.01);

        $promise->then(null, $this->expectCallableOnce()); // avoid reporting unhandled rejection

        Loop::run();

        unset($promise);

        $this->assertEquals(0, gc_collect_cycles());
    }

    public function testCancellingPromiseDoesNotLeaveGarbageCycles()
    {
        if (class_exists('React\Promise\When')) {
            $this->markTestSkipped('Not supported on legacy Promise v1 API');
        }

        gc_collect_cycles();

        $promise = Timer\reject(0.01);
        $promise->cancel();
        unset($promise);

        $this->assertEquals(0, gc_collect_cycles());
    }
}