FunctionsTest.php

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<?php
 
namespace Sabre\Event\Loop;
 
class FunctionsTest extends \PHPUnit_Framework_TestCase {
 
    function setUp() {
 
        // Always creating a fresh loop object.
        instance(new Loop());
 
    }
 
    function tearDown() {
 
        // Removing the global loop object.
        instance(null);
 
    }
 
    function testNextTick() {
 
        $check  = 0;
        nextTick(function() use (&$check) {
 
            $check++;
 
        });
 
        run();
 
        $this->assertEquals(1, $check);
 
    }
 
    function testTimeout() {
 
        $check  = 0;
        setTimeout(function() use (&$check) {
 
            $check++;
 
        }, 0.02);
 
        run();
 
        $this->assertEquals(1, $check);
 
    }
 
    function testTimeoutOrder() {
 
        $check  = [];
        setTimeout(function() use (&$check) {
 
            $check[] = 'a';
 
        }, 0.2);
        setTimeout(function() use (&$check) {
 
            $check[] = 'b';
 
        }, 0.1);
        setTimeout(function() use (&$check) {
 
            $check[] = 'c';
 
        }, 0.3);
 
        run();
 
        $this->assertEquals(['b', 'a', 'c'], $check);
 
    }
 
    function testSetInterval() {
 
        $check = 0;
        $intervalId = null;
        $intervalId = setInterval(function() use (&$check, &$intervalId) {
 
            $check++;
            if ($check > 5) {
                clearInterval($intervalId);
            }
 
        }, 0.02);
 
        run();
        $this->assertEquals(6, $check);
 
    }
 
    function testAddWriteStream() {
 
        $h = fopen('php://temp', 'r+');
        addWriteStream($h, function() use ($h) {
 
            fwrite($h, 'hello world');
            removeWriteStream($h);
 
        });
        run();
        rewind($h);
        $this->assertEquals('hello world', stream_get_contents($h));
 
    }
 
    function testAddReadStream() {
 
        $h = fopen('php://temp', 'r+');
        fwrite($h, 'hello world');
        rewind($h);
 
        $result = null;
 
        addReadStream($h, function() use ($h, &$result) {
 
            $result = fgets($h);
            removeReadStream($h);
 
        });
        run();
        $this->assertEquals('hello world', $result);
 
    }
 
    function testStop() {
 
        $check = 0;
        setTimeout(function() use (&$check) {
            $check++;
        }, 200);
 
        nextTick(function() {
            stop();
        });
        run();
 
        $this->assertEquals(0, $check);
 
    }
 
    function testTick() {
 
        $check = 0;
        setTimeout(function() use (&$check) {
            $check++;
        }, 1);
 
        nextTick(function() use (&$check) {
            $check++;
        });
        tick();
 
        $this->assertEquals(1, $check);
 
    }
 
}