Initial Commit

17 files changed, 1313 insertions, 0 deletions

diff --git a/assets/php/vendor/react/event-loop/tests/AbstractLoopTest.php b/assets/php/vendor/react/event-loop/tests/AbstractLoopTest.php
new file mode 100644
index 0000000..dbfc91e
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/AbstractLoopTest.php
@@ -0,0 +1,621 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+abstract class AbstractLoopTest extends TestCase
+{
+    /**
+     * @var \React\EventLoop\LoopInterface
+     */
+    protected $loop;
+
+    private $tickTimeout;
+
+    const PHP_DEFAULT_CHUNK_SIZE = 8192;
+
+    public function setUp()
+    {
+        // It's a timeout, don't set it too low. Travis and other CI systems are slow.
+        $this->tickTimeout = 0.02;
+        $this->loop = $this->createLoop();
+    }
+
+    abstract public function createLoop();
+
+    public function createSocketPair()
+    {
+        $domain = (DIRECTORY_SEPARATOR === '\\') ? STREAM_PF_INET : STREAM_PF_UNIX;
+        $sockets = stream_socket_pair($domain, STREAM_SOCK_STREAM, STREAM_IPPROTO_IP);
+
+        foreach ($sockets as $socket) {
+            if (function_exists('stream_set_read_buffer')) {
+                stream_set_read_buffer($socket, 0);
+            }
+        }
+
+        return $sockets;
+    }
+
+    public function testAddReadStream()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $this->loop->addReadStream($input, $this->expectCallableExactly(2));
+
+        fwrite($output, "foo\n");
+        $this->tickLoop($this->loop);
+
+        fwrite($output, "bar\n");
+        $this->tickLoop($this->loop);
+    }
+
+    public function testAddReadStreamIgnoresSecondCallable()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $this->loop->addReadStream($input, $this->expectCallableExactly(2));
+        $this->loop->addReadStream($input, $this->expectCallableNever());
+
+        fwrite($output, "foo\n");
+        $this->tickLoop($this->loop);
+
+        fwrite($output, "bar\n");
+        $this->tickLoop($this->loop);
+    }
+
+    public function testAddReadStreamReceivesDataFromStreamReference()
+    {
+        $this->received = '';
+        $this->subAddReadStreamReceivesDataFromStreamReference();
+        $this->assertEquals('', $this->received);
+
+        $this->assertRunFasterThan($this->tickTimeout * 2);
+        $this->assertEquals('[hello]X', $this->received);
+    }
+
+    /**
+     * Helper for above test. This happens in another helper method to verify
+     * the loop keeps track of assigned stream resources (refcount).
+     */
+    private function subAddReadStreamReceivesDataFromStreamReference()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        fwrite($input, 'hello');
+        fclose($input);
+
+        $loop = $this->loop;
+        $received =& $this->received;
+        $loop->addReadStream($output, function ($output) use ($loop, &$received) {
+            $chunk = fread($output, 1024);
+            if ($chunk === '') {
+                $received .= 'X';
+                $loop->removeReadStream($output);
+                fclose($output);
+            } else {
+                $received .= '[' . $chunk . ']';
+            }
+        });
+    }
+
+    public function testAddWriteStream()
+    {
+        list ($input) = $this->createSocketPair();
+
+        $this->loop->addWriteStream($input, $this->expectCallableExactly(2));
+        $this->tickLoop($this->loop);
+        $this->tickLoop($this->loop);
+    }
+
+    public function testAddWriteStreamIgnoresSecondCallable()
+    {
+        list ($input) = $this->createSocketPair();
+
+        $this->loop->addWriteStream($input, $this->expectCallableExactly(2));
+        $this->loop->addWriteStream($input, $this->expectCallableNever());
+        $this->tickLoop($this->loop);
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveReadStreamInstantly()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $this->loop->addReadStream($input, $this->expectCallableNever());
+        $this->loop->removeReadStream($input);
+
+        fwrite($output, "bar\n");
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveReadStreamAfterReading()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $this->loop->addReadStream($input, $this->expectCallableOnce());
+
+        fwrite($output, "foo\n");
+        $this->tickLoop($this->loop);
+
+        $this->loop->removeReadStream($input);
+
+        fwrite($output, "bar\n");
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveWriteStreamInstantly()
+    {
+        list ($input) = $this->createSocketPair();
+
+        $this->loop->addWriteStream($input, $this->expectCallableNever());
+        $this->loop->removeWriteStream($input);
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveWriteStreamAfterWriting()
+    {
+        list ($input) = $this->createSocketPair();
+
+        $this->loop->addWriteStream($input, $this->expectCallableOnce());
+        $this->tickLoop($this->loop);
+
+        $this->loop->removeWriteStream($input);
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveStreamForReadOnly()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $this->loop->addReadStream($input, $this->expectCallableNever());
+        $this->loop->addWriteStream($output, $this->expectCallableOnce());
+        $this->loop->removeReadStream($input);
+
+        fwrite($output, "foo\n");
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveStreamForWriteOnly()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        fwrite($output, "foo\n");
+
+        $this->loop->addReadStream($input, $this->expectCallableOnce());
+        $this->loop->addWriteStream($output, $this->expectCallableNever());
+        $this->loop->removeWriteStream($output);
+
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRemoveReadAndWriteStreamFromLoopOnceResourceClosesEndsLoop()
+    {
+        list($stream, $other) = $this->createSocketPair();
+        stream_set_blocking($stream, false);
+        stream_set_blocking($other, false);
+
+        // dummy writable handler
+        $this->loop->addWriteStream($stream, function () { });
+
+        // remove stream when the stream is readable (closes)
+        $loop = $this->loop;
+        $loop->addReadStream($stream, function ($stream) use ($loop) {
+            $loop->removeReadStream($stream);
+            $loop->removeWriteStream($stream);
+            fclose($stream);
+        });
+
+        // close other side
+        fclose($other);
+
+        $this->assertRunFasterThan($this->tickTimeout);
+    }
+
+    public function testRemoveReadAndWriteStreamFromLoopOnceResourceClosesOnEndOfFileEndsLoop()
+    {
+        list($stream, $other) = $this->createSocketPair();
+        stream_set_blocking($stream, false);
+        stream_set_blocking($other, false);
+
+        // dummy writable handler
+        $this->loop->addWriteStream($stream, function () { });
+
+        // remove stream when the stream is readable (closes)
+        $loop = $this->loop;
+        $loop->addReadStream($stream, function ($stream) use ($loop) {
+            $data = fread($stream, 1024);
+            if ($data !== '') {
+                return;
+            }
+
+            $loop->removeReadStream($stream);
+            $loop->removeWriteStream($stream);
+            fclose($stream);
+        });
+
+        // send data and close stream
+        fwrite($other, str_repeat('.', static::PHP_DEFAULT_CHUNK_SIZE));
+        $this->loop->addTimer(0.01, function () use ($other) {
+            fclose($other);
+        });
+
+        $this->assertRunFasterThan(0.1);
+    }
+
+    public function testRemoveReadAndWriteStreamFromLoopWithClosingResourceEndsLoop()
+    {
+        // get only one part of the pair to ensure the other side will close immediately
+        list($stream) = $this->createSocketPair();
+        stream_set_blocking($stream, false);
+
+        // dummy writable handler
+        $this->loop->addWriteStream($stream, function () { });
+
+        // remove stream when the stream is readable (closes)
+        $loop = $this->loop;
+        $loop->addReadStream($stream, function ($stream) use ($loop) {
+            $loop->removeReadStream($stream);
+            $loop->removeWriteStream($stream);
+            fclose($stream);
+        });
+
+        $this->assertRunFasterThan($this->tickTimeout);
+    }
+
+    public function testRemoveInvalid()
+    {
+        list ($stream) = $this->createSocketPair();
+
+        // remove a valid stream from the event loop that was never added in the first place
+        $this->loop->removeReadStream($stream);
+        $this->loop->removeWriteStream($stream);
+
+        $this->assertTrue(true);
+    }
+
+    /** @test */
+    public function emptyRunShouldSimplyReturn()
+    {
+        $this->assertRunFasterThan($this->tickTimeout);
+    }
+
+    /** @test */
+    public function runShouldReturnWhenNoMoreFds()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $loop = $this->loop;
+        $this->loop->addReadStream($input, function ($stream) use ($loop) {
+            $loop->removeReadStream($stream);
+        });
+
+        fwrite($output, "foo\n");
+
+        $this->assertRunFasterThan($this->tickTimeout * 2);
+    }
+
+    /** @test */
+    public function stopShouldStopRunningLoop()
+    {
+        list ($input, $output) = $this->createSocketPair();
+
+        $loop = $this->loop;
+        $this->loop->addReadStream($input, function ($stream) use ($loop) {
+            $loop->stop();
+        });
+
+        fwrite($output, "foo\n");
+
+        $this->assertRunFasterThan($this->tickTimeout * 2);
+    }
+
+    public function testStopShouldPreventRunFromBlocking()
+    {
+        $that = $this;
+        $this->loop->addTimer(
+            1,
+            function () use ($that) {
+                $that->fail('Timer was executed.');
+            }
+        );
+
+        $loop = $this->loop;
+        $this->loop->futureTick(
+            function () use ($loop) {
+                $loop->stop();
+            }
+        );
+
+        $this->assertRunFasterThan($this->tickTimeout * 2);
+    }
+
+    public function testIgnoreRemovedCallback()
+    {
+        // two independent streams, both should be readable right away
+        list ($input1, $output1) = $this->createSocketPair();
+        list ($input2, $output2) = $this->createSocketPair();
+
+        $called = false;
+
+        $loop = $this->loop;
+        $loop->addReadStream($input1, function ($stream) use (& $called, $loop, $input2) {
+            // stream1 is readable, remove stream2 as well => this will invalidate its callback
+            $loop->removeReadStream($stream);
+            $loop->removeReadStream($input2);
+
+            $called = true;
+        });
+
+        // this callback would have to be called as well, but the first stream already removed us
+        $that = $this;
+        $loop->addReadStream($input2, function () use (& $called, $that) {
+            if ($called) {
+                $that->fail('Callback 2 must not be called after callback 1 was called');
+            }
+        });
+
+        fwrite($output1, "foo\n");
+        fwrite($output2, "foo\n");
+
+        $loop->run();
+
+        $this->assertTrue($called);
+    }
+
+    public function testFutureTickEventGeneratedByFutureTick()
+    {
+        $loop = $this->loop;
+        $this->loop->futureTick(
+            function () use ($loop) {
+                $loop->futureTick(
+                    function () {
+                        echo 'future-tick' . PHP_EOL;
+                    }
+                );
+            }
+        );
+
+        $this->expectOutputString('future-tick' . PHP_EOL);
+
+        $this->loop->run();
+    }
+
+    public function testFutureTick()
+    {
+        $called = false;
+
+        $callback = function () use (&$called) {
+            $called = true;
+        };
+
+        $this->loop->futureTick($callback);
+
+        $this->assertFalse($called);
+
+        $this->tickLoop($this->loop);
+
+        $this->assertTrue($called);
+    }
+
+    public function testFutureTickFiresBeforeIO()
+    {
+        list ($stream) = $this->createSocketPair();
+
+        $this->loop->addWriteStream(
+            $stream,
+            function () {
+                echo 'stream' . PHP_EOL;
+            }
+        );
+
+        $this->loop->futureTick(
+            function () {
+                echo 'future-tick' . PHP_EOL;
+            }
+        );
+
+        $this->expectOutputString('future-tick' . PHP_EOL . 'stream' . PHP_EOL);
+
+        $this->tickLoop($this->loop);
+    }
+
+    public function testRecursiveFutureTick()
+    {
+        list ($stream) = $this->createSocketPair();
+
+        $loop = $this->loop;
+        $this->loop->addWriteStream(
+            $stream,
+            function () use ($stream, $loop) {
+                echo 'stream' . PHP_EOL;
+                $loop->removeWriteStream($stream);
+            }
+        );
+
+        $this->loop->futureTick(
+            function () use ($loop) {
+                echo 'future-tick-1' . PHP_EOL;
+                $loop->futureTick(
+                    function () {
+                        echo 'future-tick-2' . PHP_EOL;
+                    }
+                );
+            }
+        );
+
+        $this->expectOutputString('future-tick-1' . PHP_EOL . 'stream' . PHP_EOL . 'future-tick-2' . PHP_EOL);
+
+        $this->loop->run();
+    }
+
+    public function testRunWaitsForFutureTickEvents()
+    {
+        list ($stream) = $this->createSocketPair();
+
+        $loop = $this->loop;
+        $this->loop->addWriteStream(
+            $stream,
+            function () use ($stream, $loop) {
+                $loop->removeWriteStream($stream);
+                $loop->futureTick(
+                    function () {
+                        echo 'future-tick' . PHP_EOL;
+                    }
+                );
+            }
+        );
+
+        $this->expectOutputString('future-tick' . PHP_EOL);
+
+        $this->loop->run();
+    }
+
+    public function testFutureTickEventGeneratedByTimer()
+    {
+        $loop = $this->loop;
+        $this->loop->addTimer(
+            0.001,
+            function () use ($loop) {
+                $loop->futureTick(
+                    function () {
+                        echo 'future-tick' . PHP_EOL;
+                    }
+                );
+            }
+        );
+
+        $this->expectOutputString('future-tick' . PHP_EOL);
+
+        $this->loop->run();
+    }
+
+    public function testRemoveSignalNotRegisteredIsNoOp()
+    {
+        $this->loop->removeSignal(SIGINT, function () { });
+        $this->assertTrue(true);
+    }
+
+    public function testSignal()
+    {
+        if (!function_exists('posix_kill') || !function_exists('posix_getpid')) {
+            $this->markTestSkipped('Signal test skipped because functions "posix_kill" and "posix_getpid" are missing.');
+        }
+
+        $called = false;
+        $calledShouldNot = true;
+
+        $timer = $this->loop->addPeriodicTimer(1, function () {});
+
+        $this->loop->addSignal(SIGUSR2, $func2 = function () use (&$calledShouldNot) {
+            $calledShouldNot = false;
+        });
+
+        $loop = $this->loop;
+        $this->loop->addSignal(SIGUSR1, $func1 = function () use (&$func1, &$func2, &$called, $timer, $loop) {
+            $called = true;
+            $loop->removeSignal(SIGUSR1, $func1);
+            $loop->removeSignal(SIGUSR2, $func2);
+            $loop->cancelTimer($timer);
+        });
+
+        $this->loop->futureTick(function () {
+            posix_kill(posix_getpid(), SIGUSR1);
+        });
+
+        $this->loop->run();
+
+        $this->assertTrue($called);
+        $this->assertTrue($calledShouldNot);
+    }
+
+    public function testSignalMultipleUsagesForTheSameListener()
+    {
+        $funcCallCount = 0;
+        $func = function () use (&$funcCallCount) {
+            $funcCallCount++;
+        };
+        $this->loop->addTimer(1, function () {});
+
+        $this->loop->addSignal(SIGUSR1, $func);
+        $this->loop->addSignal(SIGUSR1, $func);
+
+        $this->loop->addTimer(0.4, function () {
+            posix_kill(posix_getpid(), SIGUSR1);
+        });
+        $loop = $this->loop;
+        $this->loop->addTimer(0.9, function () use (&$func, $loop) {
+            $loop->removeSignal(SIGUSR1, $func);
+        });
+
+        $this->loop->run();
+
+        $this->assertSame(1, $funcCallCount);
+    }
+
+    public function testSignalsKeepTheLoopRunning()
+    {
+        $loop = $this->loop;
+        $function = function () {};
+        $this->loop->addSignal(SIGUSR1, $function);
+        $this->loop->addTimer(1.5, function () use ($function, $loop) {
+            $loop->removeSignal(SIGUSR1, $function);
+            $loop->stop();
+        });
+
+        $this->assertRunSlowerThan(1.5);
+    }
+
+    public function testSignalsKeepTheLoopRunningAndRemovingItStopsTheLoop()
+    {
+        $loop = $this->loop;
+        $function = function () {};
+        $this->loop->addSignal(SIGUSR1, $function);
+        $this->loop->addTimer(1.5, function () use ($function, $loop) {
+            $loop->removeSignal(SIGUSR1, $function);
+        });
+
+        $this->assertRunFasterThan(1.6);
+    }
+
+    public function testTimerIntervalCanBeFarInFuture()
+    {
+        // get only one part of the pair to ensure the other side will close immediately
+        list($stream) = $this->createSocketPair();
+
+        // start a timer very far in the future
+        $timer = $this->loop->addTimer(PHP_INT_MAX, function () { });
+
+        // remove stream and timer when the stream is readable (closes)
+        $loop = $this->loop;
+        $this->loop->addReadStream($stream, function ($stream) use ($timer, $loop) {
+            $loop->removeReadStream($stream);
+            $loop->cancelTimer($timer);
+        });
+
+        $this->assertRunFasterThan($this->tickTimeout);
+    }
+
+    private function assertRunSlowerThan($minInterval)
+    {
+        $start = microtime(true);
+
+        $this->loop->run();
+
+        $end = microtime(true);
+        $interval = $end - $start;
+
+        $this->assertLessThan($interval, $minInterval);
+    }
+
+    private function assertRunFasterThan($maxInterval)
+    {
+        $start = microtime(true);
+
+        $this->loop->run();
+
+        $end = microtime(true);
+        $interval = $end - $start;
+
+        $this->assertLessThan($maxInterval, $interval);
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/CallableStub.php b/assets/php/vendor/react/event-loop/tests/CallableStub.php
new file mode 100644
index 0000000..913d403
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/CallableStub.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+class CallableStub
+{
+    public function __invoke()
+    {
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/ExtEvLoopTest.php b/assets/php/vendor/react/event-loop/tests/ExtEvLoopTest.php
new file mode 100644
index 0000000..ab41c9f
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/ExtEvLoopTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\ExtEvLoop;
+
+class ExtEvLoopTest extends AbstractLoopTest
+{
+    public function createLoop()
+    {
+        if (!class_exists('EvLoop')) {
+            $this->markTestSkipped('ExtEvLoop tests skipped because ext-ev extension is not installed.');
+        }
+
+        return new ExtEvLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/ExtEventLoopTest.php b/assets/php/vendor/react/event-loop/tests/ExtEventLoopTest.php
new file mode 100644
index 0000000..2f88d18
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/ExtEventLoopTest.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\ExtEventLoop;
+
+class ExtEventLoopTest extends AbstractLoopTest
+{
+    public function createLoop($readStreamCompatible = false)
+    {
+        if ('Linux' === PHP_OS && !extension_loaded('posix')) {
+            $this->markTestSkipped('libevent tests skipped on linux due to linux epoll issues.');
+        }
+
+        if (!extension_loaded('event')) {
+            $this->markTestSkipped('ext-event tests skipped because ext-event is not installed.');
+        }
+
+        return new ExtEventLoop();
+    }
+
+    public function createStream()
+    {
+        // Use a FIFO on linux to get around lack of support for disk-based file
+        // descriptors when using the EPOLL back-end.
+        if ('Linux' === PHP_OS) {
+            $this->fifoPath = tempnam(sys_get_temp_dir(), 'react-');
+
+            unlink($this->fifoPath);
+
+            posix_mkfifo($this->fifoPath, 0600);
+
+            $stream = fopen($this->fifoPath, 'r+');
+
+        // ext-event (as of 1.8.1) does not yet support in-memory temporary
+        // streams. Setting maxmemory:0 and performing a write forces PHP to
+        // back this temporary stream with a real file.
+        //
+        // This problem is mentioned at https://bugs.php.net/bug.php?id=64652&edit=3
+        // but remains unresolved (despite that issue being closed).
+        } else {
+            $stream = fopen('php://temp/maxmemory:0', 'r+');
+
+            fwrite($stream, 'x');
+            ftruncate($stream, 0);
+        }
+
+        return $stream;
+    }
+
+    public function writeToStream($stream, $content)
+    {
+        if ('Linux' !== PHP_OS) {
+            return parent::writeToStream($stream, $content);
+        }
+
+        fwrite($stream, $content);
+    }
+
+    /**
+     * @group epoll-readable-error
+     */
+    public function testCanUseReadableStreamWithFeatureFds()
+    {
+        if (PHP_VERSION_ID > 70000) {
+            $this->markTestSkipped('Memory stream not supported');
+        }
+
+        $this->loop = $this->createLoop(true);
+
+        $input = fopen('php://temp/maxmemory:0', 'r+');
+
+        fwrite($input, 'x');
+        ftruncate($input, 0);
+
+        $this->loop->addReadStream($input, $this->expectCallableExactly(2));
+
+        fwrite($input, "foo\n");
+        $this->tickLoop($this->loop);
+
+        fwrite($input, "bar\n");
+        $this->tickLoop($this->loop);
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/ExtLibevLoopTest.php b/assets/php/vendor/react/event-loop/tests/ExtLibevLoopTest.php
new file mode 100644
index 0000000..19a5e87
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/ExtLibevLoopTest.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\ExtLibevLoop;
+
+class ExtLibevLoopTest extends AbstractLoopTest
+{
+    public function createLoop()
+    {
+        if (!class_exists('libev\EventLoop')) {
+            $this->markTestSkipped('libev tests skipped because ext-libev is not installed.');
+        }
+
+        return new ExtLibevLoop();
+    }
+
+    public function testLibEvConstructor()
+    {
+        $loop = new ExtLibevLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/ExtLibeventLoopTest.php b/assets/php/vendor/react/event-loop/tests/ExtLibeventLoopTest.php
new file mode 100644
index 0000000..8497065
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/ExtLibeventLoopTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\ExtLibeventLoop;
+
+class ExtLibeventLoopTest extends AbstractLoopTest
+{
+    private $fifoPath;
+
+    public function createLoop()
+    {
+        if ('Linux' === PHP_OS && !extension_loaded('posix')) {
+            $this->markTestSkipped('libevent tests skipped on linux due to linux epoll issues.');
+        }
+
+        if (!function_exists('event_base_new')) {
+            $this->markTestSkipped('libevent tests skipped because ext-libevent is not installed.');
+        }
+
+        return new ExtLibeventLoop();
+    }
+
+    public function tearDown()
+    {
+        if (file_exists($this->fifoPath)) {
+            unlink($this->fifoPath);
+        }
+    }
+
+    public function createStream()
+    {
+        if ('Linux' !== PHP_OS) {
+            return parent::createStream();
+        }
+
+        $this->fifoPath = tempnam(sys_get_temp_dir(), 'react-');
+
+        unlink($this->fifoPath);
+
+        // Use a FIFO on linux to get around lack of support for disk-based file
+        // descriptors when using the EPOLL back-end.
+        posix_mkfifo($this->fifoPath, 0600);
+
+        $stream = fopen($this->fifoPath, 'r+');
+
+        return $stream;
+    }
+
+    public function writeToStream($stream, $content)
+    {
+        if ('Linux' !== PHP_OS) {
+            return parent::writeToStream($stream, $content);
+        }
+
+        fwrite($stream, $content);
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/SignalsHandlerTest.php b/assets/php/vendor/react/event-loop/tests/SignalsHandlerTest.php
new file mode 100644
index 0000000..f8b7df3
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/SignalsHandlerTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\SignalsHandler;
+
+final class SignalsHandlerTest extends TestCase
+{
+    public function testEmittedEventsAndCallHandling()
+    {
+        $callCount = 0;
+        $func = function () use (&$callCount) {
+            $callCount++;
+        };
+        $signals = new SignalsHandler();
+
+        $this->assertSame(0, $callCount);
+
+        $signals->add(SIGUSR1, $func);
+        $this->assertSame(0, $callCount);
+
+        $signals->add(SIGUSR1, $func);
+        $this->assertSame(0, $callCount);
+
+        $signals->add(SIGUSR1, $func);
+        $this->assertSame(0, $callCount);
+
+        $signals->call(SIGUSR1);
+        $this->assertSame(1, $callCount);
+
+        $signals->add(SIGUSR2, $func);
+        $this->assertSame(1, $callCount);
+
+        $signals->add(SIGUSR2, $func);
+        $this->assertSame(1, $callCount);
+
+        $signals->call(SIGUSR2);
+        $this->assertSame(2, $callCount);
+
+        $signals->remove(SIGUSR2, $func);
+        $this->assertSame(2, $callCount);
+
+        $signals->remove(SIGUSR2, $func);
+        $this->assertSame(2, $callCount);
+
+        $signals->call(SIGUSR2);
+        $this->assertSame(2, $callCount);
+
+        $signals->remove(SIGUSR1, $func);
+        $this->assertSame(2, $callCount);
+
+        $signals->call(SIGUSR1);
+        $this->assertSame(2, $callCount);
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/StreamSelectLoopTest.php b/assets/php/vendor/react/event-loop/tests/StreamSelectLoopTest.php
new file mode 100644
index 0000000..bd19e1c
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/StreamSelectLoopTest.php
@@ -0,0 +1,148 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use React\EventLoop\LoopInterface;
+use React\EventLoop\StreamSelectLoop;
+
+class StreamSelectLoopTest extends AbstractLoopTest
+{
+    protected function tearDown()
+    {
+        parent::tearDown();
+        if (strncmp($this->getName(false), 'testSignal', 10) === 0 && extension_loaded('pcntl')) {
+            $this->resetSignalHandlers();
+        }
+    }
+
+    public function createLoop()
+    {
+        return new StreamSelectLoop();
+    }
+
+    public function testStreamSelectTimeoutEmulation()
+    {
+        $this->loop->addTimer(
+            0.05,
+            $this->expectCallableOnce()
+        );
+
+        $start = microtime(true);
+
+        $this->loop->run();
+
+        $end = microtime(true);
+        $interval = $end - $start;
+
+        $this->assertGreaterThan(0.04, $interval);
+    }
+
+    public function signalProvider()
+    {
+        return array(
+            array('SIGUSR1'),
+            array('SIGHUP'),
+            array('SIGTERM'),
+        );
+    }
+
+    /**
+     * Test signal interrupt when no stream is attached to the loop
+     * @dataProvider signalProvider
+     */
+    public function testSignalInterruptNoStream($signal)
+    {
+        if (!extension_loaded('pcntl')) {
+            $this->markTestSkipped('"pcntl" extension is required to run this test.');
+        }
+
+        // dispatch signal handler every 10ms for 0.1s
+        $check = $this->loop->addPeriodicTimer(0.01, function() {
+            pcntl_signal_dispatch();
+        });
+        $loop = $this->loop;
+        $loop->addTimer(0.1, function () use ($check, $loop) {
+            $loop->cancelTimer($check);
+        });
+
+        $handled = false;
+        $this->assertTrue(pcntl_signal(constant($signal), function () use (&$handled) {
+            $handled = true;
+        }));
+
+        // spawn external process to send signal to current process id
+        $this->forkSendSignal($signal);
+
+        $this->loop->run();
+        $this->assertTrue($handled);
+    }
+
+    /**
+     * Test signal interrupt when a stream is attached to the loop
+     * @dataProvider signalProvider
+     */
+    public function testSignalInterruptWithStream($signal)
+    {
+        if (!extension_loaded('pcntl')) {
+            $this->markTestSkipped('"pcntl" extension is required to run this test.');
+        }
+
+        // dispatch signal handler every 10ms
+        $this->loop->addPeriodicTimer(0.01, function() {
+            pcntl_signal_dispatch();
+        });
+
+        // add stream to the loop
+        $loop = $this->loop;
+        list($writeStream, $readStream) = $this->createSocketPair();
+        $loop->addReadStream($readStream, function ($stream) use ($loop) {
+            /** @var $loop LoopInterface */
+            $read = fgets($stream);
+            if ($read === "end loop\n") {
+                $loop->stop();
+            }
+        });
+        $this->loop->addTimer(0.1, function() use ($writeStream) {
+            fwrite($writeStream, "end loop\n");
+        });
+
+        $handled = false;
+        $this->assertTrue(pcntl_signal(constant($signal), function () use (&$handled) {
+            $handled = true;
+        }));
+
+        // spawn external process to send signal to current process id
+        $this->forkSendSignal($signal);
+
+        $this->loop->run();
+
+        $this->assertTrue($handled);
+    }
+
+    /**
+     * reset all signal handlers to default
+     */
+    protected function resetSignalHandlers()
+    {
+        foreach($this->signalProvider() as $signal) {
+            pcntl_signal(constant($signal[0]), SIG_DFL);
+        }
+    }
+
+    /**
+     * fork child process to send signal to current process id
+     */
+    protected function forkSendSignal($signal)
+    {
+        $currentPid = posix_getpid();
+        $childPid = pcntl_fork();
+        if ($childPid == -1) {
+            $this->fail("Failed to fork child process!");
+        } else if ($childPid === 0) {
+            // this is executed in the child process
+            usleep(20000);
+            posix_kill($currentPid, constant($signal));
+            die();
+        }
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/TestCase.php b/assets/php/vendor/react/event-loop/tests/TestCase.php
new file mode 100644
index 0000000..dbdd54c
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/TestCase.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace React\Tests\EventLoop;
+
+use PHPUnit\Framework\TestCase as BaseTestCase;
+use React\EventLoop\LoopInterface;
+
+class TestCase extends BaseTestCase
+{
+    protected function expectCallableExactly($amount)
+    {
+        $mock = $this->createCallableMock();
+        $mock
+            ->expects($this->exactly($amount))
+            ->method('__invoke');
+
+        return $mock;
+    }
+
+    protected function expectCallableOnce()
+    {
+        $mock = $this->createCallableMock();
+        $mock
+            ->expects($this->once())
+            ->method('__invoke');
+
+        return $mock;
+    }
+
+    protected function expectCallableNever()
+    {
+        $mock = $this->createCallableMock();
+        $mock
+            ->expects($this->never())
+            ->method('__invoke');
+
+        return $mock;
+    }
+
+    protected function createCallableMock()
+    {
+        return $this->getMockBuilder('React\Tests\EventLoop\CallableStub')->getMock();
+    }
+
+    protected function tickLoop(LoopInterface $loop)
+    {
+        $loop->futureTick(function () use ($loop) {
+            $loop->stop();
+        });
+
+        $loop->run();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/AbstractTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/AbstractTimerTest.php
new file mode 100644
index 0000000..294e683
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/AbstractTimerTest.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\LoopInterface;
+use React\Tests\EventLoop\TestCase;
+
+abstract class AbstractTimerTest extends TestCase
+{
+    /**
+     * @return LoopInterface
+     */
+    abstract public function createLoop();
+
+    public function testAddTimerReturnsNonPeriodicTimerInstance()
+    {
+        $loop = $this->createLoop();
+
+        $timer = $loop->addTimer(0.001, $this->expectCallableNever());
+
+        $this->assertInstanceOf('React\EventLoop\TimerInterface', $timer);
+        $this->assertFalse($timer->isPeriodic());
+    }
+
+    public function testAddTimerWillBeInvokedOnceAndBlocksLoopWhenRunning()
+    {
+        $loop = $this->createLoop();
+
+        $loop->addTimer(0.001, $this->expectCallableOnce());
+
+        $start = microtime(true);
+        $loop->run();
+        $end = microtime(true);
+
+        // make no strict assumptions about actual time interval.
+        // must be at least 0.001s (1ms) and should not take longer than 0.1s
+        $this->assertGreaterThanOrEqual(0.001, $end - $start);
+        $this->assertLessThan(0.1, $end - $start);
+    }
+
+    public function testAddPeriodicTimerReturnsPeriodicTimerInstance()
+    {
+        $loop = $this->createLoop();
+
+        $periodic = $loop->addPeriodicTimer(0.1, $this->expectCallableNever());
+
+        $this->assertInstanceOf('React\EventLoop\TimerInterface', $periodic);
+        $this->assertTrue($periodic->isPeriodic());
+    }
+
+    public function testAddPeriodicTimerWillBeInvokedUntilItIsCancelled()
+    {
+        $loop = $this->createLoop();
+
+        $periodic = $loop->addPeriodicTimer(0.1, $this->expectCallableExactly(3));
+
+        // make no strict assumptions about actual time interval.
+        // leave some room to ensure this ticks exactly 3 times.
+        $loop->addTimer(0.399, function () use ($loop, $periodic) {
+            $loop->cancelTimer($periodic);
+        });
+
+        $loop->run();
+    }
+
+    public function testAddPeriodicTimerWillBeInvokedWithMaximumAccuracyUntilItIsCancelled()
+    {
+        $loop = $this->createLoop();
+
+        $i = 0;
+        $periodic = $loop->addPeriodicTimer(0.001, function () use (&$i) {
+            ++$i;
+        });
+
+        $loop->addTimer(0.02, function () use ($loop, $periodic) {
+            $loop->cancelTimer($periodic);
+        });
+
+        $loop->run();
+
+        // make no strict assumptions about number of invocations.
+        // we know it must be no more than 20 times and should at least be
+        // invoked twice for really slow loops
+        $this->assertLessThanOrEqual(20, $i);
+        $this->assertGreaterThan(2, $i);
+    }
+
+    public function testAddPeriodicTimerCancelsItself()
+    {
+        $loop = $this->createLoop();
+
+        $i = 0;
+        $loop->addPeriodicTimer(0.001, function ($timer) use (&$i, $loop) {
+            $i++;
+
+            if ($i === 5) {
+                $loop->cancelTimer($timer);
+            }
+        });
+
+        $start = microtime(true);
+        $loop->run();
+        $end = microtime(true);
+
+        $this->assertEquals(5, $i);
+
+        // make no strict assumptions about time interval.
+        // 5 invocations must take at least 0.005s (5ms) and should not take
+        // longer than 0.1s for slower loops.
+        $this->assertGreaterThanOrEqual(0.005, $end - $start);
+        $this->assertLessThan(0.1, $end - $start);
+    }
+
+    public function testMinimumIntervalOneMicrosecond()
+    {
+        $loop = $this->createLoop();
+
+        $timer = $loop->addTimer(0, function () {});
+
+        $this->assertEquals(0.000001, $timer->getInterval());
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/ExtEvTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/ExtEvTimerTest.php
new file mode 100644
index 0000000..bfa9186
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/ExtEvTimerTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\ExtEvLoop;
+
+class ExtEvTimerTest extends AbstractTimerTest
+{
+    public function createLoop()
+    {
+        if (!class_exists('EvLoop')) {
+            $this->markTestSkipped('ExtEvLoop tests skipped because ext-ev extension is not installed.');
+        }
+
+        return new ExtEvLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/ExtEventTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/ExtEventTimerTest.php
new file mode 100644
index 0000000..a7a6d00
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/ExtEventTimerTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\ExtEventLoop;
+
+class ExtEventTimerTest extends AbstractTimerTest
+{
+    public function createLoop()
+    {
+        if (!extension_loaded('event')) {
+            $this->markTestSkipped('ext-event tests skipped because ext-event is not installed.');
+        }
+
+        return new ExtEventLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/ExtLibevTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/ExtLibevTimerTest.php
new file mode 100644
index 0000000..65e82be
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/ExtLibevTimerTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\ExtLibevLoop;
+
+class ExtLibevTimerTest extends AbstractTimerTest
+{
+    public function createLoop()
+    {
+        if (!class_exists('libev\EventLoop')) {
+            $this->markTestSkipped('libev tests skipped because ext-libev is not installed.');
+        }
+
+        return new ExtLibevLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/ExtLibeventTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/ExtLibeventTimerTest.php
new file mode 100644
index 0000000..9089b9a
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/ExtLibeventTimerTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\ExtLibeventLoop;
+
+class ExtLibeventTimerTest extends AbstractTimerTest
+{
+    public function createLoop()
+    {
+        if (!function_exists('event_base_new')) {
+            $this->markTestSkipped('libevent tests skipped because ext-libevent is not installed.');
+        }
+
+        return new ExtLibeventLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/StreamSelectTimerTest.php b/assets/php/vendor/react/event-loop/tests/Timer/StreamSelectTimerTest.php
new file mode 100644
index 0000000..cfe1d7d
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/StreamSelectTimerTest.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\EventLoop\StreamSelectLoop;
+
+class StreamSelectTimerTest extends AbstractTimerTest
+{
+    public function createLoop()
+    {
+        return new StreamSelectLoop();
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/Timer/TimersTest.php b/assets/php/vendor/react/event-loop/tests/Timer/TimersTest.php
new file mode 100644
index 0000000..b279478
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/Timer/TimersTest.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace React\Tests\EventLoop\Timer;
+
+use React\Tests\EventLoop\TestCase;
+use React\EventLoop\Timer\Timer;
+use React\EventLoop\Timer\Timers;
+
+class TimersTest extends TestCase
+{
+    public function testBlockedTimer()
+    {
+        $timers = new Timers();
+        $timers->tick();
+
+        // simulate a bunch of processing on stream events,
+        // part of which schedules a future timer...
+        sleep(1);
+        $timers->add(new Timer(0.5, function () {
+            $this->fail("Timer shouldn't be called");
+        }));
+
+        $timers->tick();
+
+        $this->assertTrue(true);
+    }
+}
diff --git a/assets/php/vendor/react/event-loop/tests/bootstrap.php b/assets/php/vendor/react/event-loop/tests/bootstrap.php
new file mode 100644
index 0000000..ea7dd4c
--- /dev/null
+++ b/assets/php/vendor/react/event-loop/tests/bootstrap.php
@@ -0,0 +1,15 @@
+<?php
+
+$loader = @include __DIR__ . '/../vendor/autoload.php';
+if (!$loader) {
+    $loader = require __DIR__ . '/../../../../vendor/autoload.php';
+}
+$loader->addPsr4('React\\Tests\\EventLoop\\', __DIR__);
+
+if (!defined('SIGUSR1')) {
+    define('SIGUSR1', 1);
+}
+
+if (!defined('SIGUSR2')) {
+    define('SIGUSR2', 2);
+}