Add accessor for SymfonyStyle object.

src/Common/IO.php

@@ -9,12 +9,29 @@
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Question\ConfirmationQuestion;
 use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Style\SymfonyStyle;
 
 trait IO
 {
     use InputAwareTrait;
     use OutputAwareTrait;
 
+    /** var: SymfonyStyle */
+    protected $io;
+
+    /**
+     * Provide access to SymfonyStyle object.
+     * See: http://symfony.com/blog/new-in-symfony-2-8-console-style-guide
+     * @return SymfonyStyle
+     */
+    protected function io()
+    {
+        if (!$this->io) {
+            $this->io = new SymfonyStyle($this->input(), $this->output());
+        }
+        return $this->io;
+    }
+
     protected function decorationCharacter($nonDecorated, $decorated)
     {
         if (!$this->output()->isDecorated() || (strncasecmp(PHP_OS, 'WIN', 3) == 0)) {

tests/src/TestRoboFile.php

@@ -23,6 +23,19 @@ public function testArrayArgs(array $a)
         $this->say("The parameters passed are:\n" . var_export($a, true));
     }
 
+    /**
+     * Demonstrate use of SymfonyStyle
+     */
+    public function testSymfonyStyle()
+    {
+        $this->io()->title('My Title');
+        $this->io()->section('Section 1');
+        $this->io()->text('Some text in section one.');
+        $this->io()->comment('This is just an example of different styles.');
+        $this->io()->section('Section 2');
+        $this->io()->text('Some text in section two.');
+    }
+
     /**
      * Demonstrate Robo error output and command failure.
      */

tests/unit/RunnerTest.php

@@ -106,6 +106,13 @@ public function testRunnerTryArgs()
         $this->guy->seeOutputEquals($expected);
     }
 
+    public function testSymfonyStyle()
+    {
+        $argv = ['placeholder', 'test:symfony-style'];
+        $this->runner->execute($argv, Robo::output());
+        $this->guy->seeInOutput('Some text in section one.');
+    }
+
     public function testRunnerTryError()
     {
         $argv = ['placeholder', 'test:error'];