From fc9401f04a3aca5abb22f87ebc210de8afe11d32 Mon Sep 17 00:00:00 2001
From: marvin-borner@live.com
Date: Tue, 10 Apr 2018 21:50:16 +0200
Subject: Initial Commit

---
 .../event-loop/tests/StreamSelectLoopTest.php      | 148 +++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 assets/php/vendor/react/event-loop/tests/StreamSelectLoopTest.php

(limited to 'assets/php/vendor/react/event-loop/tests/StreamSelectLoopTest.php')

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();
+        }
+    }
+}
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