Fix failing tests about amp HOT 6 CLOSED

    public function testExecutionOrder()
    {
        // Our expected output
        $this->expectOutputString('defer writable reenabled delay ');

        // Set up a closure to output
        $output = function(Driver $loop, string $output) {
            $called = false;
            // Return a function that tracks whether it has been called
            return function($id) use ($loop, $output, &$called) {
                if ($called) {
                    $this->fail('Watcher callback called too often');
                }

                $called = true;
                $loop->cancel($id);
                echo $output . ' ';
            };
        };

        // Begin a loop for testing
        $this->start(function (Driver $loop) use (&$ticks, $output) {
            // Lets start with the reenabled watcher
            $reenabled = $loop->onWritable(STDIN, $output($loop, 'reenabled'));
            $loop->disable($reenabled);

            // Lets defer something now
            $loop->defer($output($loop, 'defer'));

            // Move on to delay
            $loop->delay(0, $output($loop, 'delay'));

            // Writable
            $loop->onWritable(STDIN, $output($loop, 'writable'));

            // Reenable
            $loop->enable($reenabled);
        });

    }