Support explicitly closing STDIN

Author: clue

src/Stdin.php

@@ -12,6 +12,12 @@ class Stdin extends Stream
 
     public function __construct(LoopInterface $loop)
     {
+        // STDIN not defined ("php -a") or already closed (`fclose(STDIN)`)
+        if (!defined('STDIN') || !is_resource(STDIN)) {
+            parent::__construct(fopen('php://memory', 'r'), $loop);
+            return $this->close();
+        }
+
         parent::__construct(STDIN, $loop);
 
         // support starting program with closed STDIN ("example.php 0<&-")

tests/FunctionalExampleTest.php

@@ -41,6 +41,20 @@ public function testPeriodicExampleWithClosedInputQuitsImmediately()
         $this->assertNotContains('you just said:', $output);
     }
 
+    public function testStubShowStdinIsReadableByDefault()
+    {
+        $output = $this->execExample('php ../tests/stub/01-check-stdin.php');
+
+        $this->assertContains('YES', $output);
+    }
+
+    public function testStubCanCloseStdinAndIsNotReadable()
+    {
+        $output = $this->execExample('php ../tests/stub/02-close-stdin.php');
+
+        $this->assertContains('NO', $output);
+    }
+
     private function execExample($command)
     {
         chdir(__DIR__ . '/../examples/');

tests/stub/01-check-stdin.php

@@ -0,0 +1,12 @@
+<?php
+
+use Clue\React\Stdio\Stdio;
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+$loop = React\EventLoop\Factory::create();
+
+$stdio = new Stdio($loop);
+$stdio->end($stdio->isReadable() ? 'YES' : 'NO');
+
+$loop->run();

tests/stub/02-close-stdin.php

@@ -0,0 +1,13 @@
+<?php
+
+use Clue\React\Stdio\Stdio;
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+$loop = React\EventLoop\Factory::create();
+
+fclose(STDIN);
+$stdio = new Stdio($loop);
+$stdio->end($stdio->isReadable() ? 'YES' : 'NO');
+
+$loop->run();