gc_collect_cycles

<?php             $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



        $dns = new Deferred();

<?php         }



        gc_collect_cycles();

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



        $dns = new Deferred();

        $this->resolver->expects($this->once())->method('resolve')->with($this->equalTo('example.com'))->willReturn($dns->promise());

<?php         $dns->reject(new \RuntimeException('DNS failed'));

        unset($promise, $dns);



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

    }



    public function testRejectionAfterDnsLookupShouldNotCreateAnyGarbageReferences()

<?php             $this->markTestSkipped('Not supported on legacy Promise v1 API');

        }



        gc_collect_cycles();



        $dns = new Deferred();

        $this->resolver->expects($this->once())->method('resolve')->with($this->equalTo('example.com'))->willReturn($dns->promise());

<?php         $tcp->reject(new \RuntimeException('Connection failed'));

        unset($promise, $dns, $tcp);



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

    }



    public function testRejectionAfterDnsLookupShouldNotCreateAnyGarbageReferencesAgain()

<?php             $this->markTestSkipped('Not supported on legacy Promise v1 API');

        }



        gc_collect_cycles();



        $dns = new Deferred();

        $this->resolver->expects($this->once())->method('resolve')->with($this->equalTo('example.com'))->willReturn($dns->promise());

<?php         unset($promise, $dns, $tcp);



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

    }



    public function testCancelDuringDnsLookupShouldNotCreateAnyGarbageReferences()

<?php             $this->markTestSkipped('Not supported on legacy Promise v1 API');

        }



        gc_collect_cycles();



        $dns = new Deferred(function () {

            throw new \RuntimeException();

<?php         $promise->cancel();

        unset($promise, $dns);



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

    }



    public function testCancelDuringTcpConnectionShouldNotCreateAnyGarbageReferences()

<?php             $this->markTestSkipped('Not supported on legacy Promise v1 API');

        }



        gc_collect_cycles();



        $dns = new Deferred();

        $this->resolver->expects($this->once())->method('resolve')->with($this->equalTo('example.com'))->willReturn($dns->promise());

<?php         $promise->cancel();

        unset($promise, $dns, $tcp);



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

    }



    private function throwRejection($promise)

<?php         $connector = new Connector(array('timeout' => false));



        gc_collect_cycles();

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



        $promise = $connector->connect('8.8.8.8:80');

<?php         $connector = new Connector(array('timeout' => false));



        gc_collect_cycles();

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



        $promise = $connector->connect('8.8.8.8:80');

        $promise->cancel();

<?php         $promise->cancel();

        unset($promise);



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

    }



    public function testCancellingPendingConnectionShouldNotCreateAnyGarbageReferences()

<?php         $connector = new Connector(array());



        gc_collect_cycles();

        $promise = $connector->connect('8.8.8.8:80');

        $promise->cancel();

        unset($promise);