symfony
diff --git a/‎src/Symfony/Component/Console/Style/SymfonyStyle.php
Lines changed: 17 additions & 0 deletions b/‎src/Symfony/Component/Console/Style/SymfonyStyle.php
Lines changed: 17 additions & 0 deletions
diff --git a/‎src/Symfony/Component/Console/Tests/Style/SymfonyStyleTest.php
Lines changed: 19 additions & 0 deletions b/‎src/Symfony/Component/Console/Tests/Style/SymfonyStyleTest.php
Lines changed: 19 additions & 0 deletions
@@ -40,6 +40,7 @@ class SymfonyStyle extends OutputStyle
     private $progressBar;
     private $lineLength;
     private $bufferedOutput;
+    private $inputStream;
 
     /**
      * @param InputInterface  $input
@@ -348,6 +349,10 @@ public function askQuestion(Question $question)
 
         if (!$this->questionHelper) {
             $this->questionHelper = new SymfonyQuestionHelper();
+
+            if ($this->inputStream) {
+                $this->questionHelper->setInputStream($this->inputStream);
+            }
         }
 
         $answer = $this->questionHelper->ask($this->input, $this, $question);
@@ -387,6 +392,18 @@ public function newLine($count = 1)
         $this->bufferedOutput->write(str_repeat("\n", $count));
     }
 
+    /**
+     * @param resource $stream
+     */
+    public function setInputStream($stream)
+    {
+        if (!is_resource($stream)) {
+            throw new \InvalidArgumentException(sprintf('The stream must be a valid resource, %s given'), gettype($stream));
+        }
+
+        $this->inputStream = $stream;
+    }
+
     /**
      * @return ProgressBar
      */
 
@@ -70,6 +70,25 @@ public function testLongWordsBlockWrapping()
         $expectedCount = (int) ceil($wordLength / ($maxLineLength)) + (int) ($wordLength > $maxLineLength - 5);
         $this->assertSame($expectedCount, substr_count($this->tester->getDisplay(true), ' § '));
     }
+
+    public function testSetInputStream()
+    {
+        $command = $this->command;
+
+        $stream = fopen('php://memory', 'r+', false);
+        fputs($stream, 'FooBar');
+        rewind($stream);
+
+        $command->setCode(function ($input, $output) use ($command, $stream) {
+            $io = new SymfonyStyle($input, $output);
+
+            $io->setInputStream($stream);
+            $io->ask('What\'s your name?');
+        });
+
+        $this->tester->execute(array());
+        $this->assertSame(0, $this->tester->getStatusCode());
+    }
 }
 
 /**