Added test code for issue #28 and #29 (#30)

Author: Nyholm

tests/Functional/Visitor/Php/Symfony/ContainerAwareTransTest.php

@@ -24,11 +24,13 @@ public function testExtract()
     {
         $collection = $this->getSourceLocations(new ContainerAwareTrans(), Resources\Php\Symfony\ContainerAwareTrans::class);
 
-        $this->assertCount(4, $collection);
+        $this->assertCount(6, $collection);
 
         $this->assertEquals('trans0', $collection->get(0)->getMessage());
         $this->assertEquals('trans1', $collection->get(1)->getMessage());
         $this->assertEquals('trans_line', $collection->get(2)->getMessage());
         $this->assertEquals('variable', $collection->get(3)->getMessage());
+        $this->assertEquals('my.pdf', $collection->get(4)->getMessage());
+        $this->assertEquals('bar', $collection->get(5)->getMessage());
     }
 }

tests/Resources/Php/Symfony/ContainerAwareTrans.php

@@ -2,8 +2,17 @@
 
 namespace Translation\Extractor\Tests\Resources\Php\Symfony;
 
+use Symfony\Component\Translation\TranslatorInterface;
+
 class ContainerAwareTrans
 {
+    private $translator;
+
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+    }
+
     /**
      * @return array
      */
@@ -36,4 +45,14 @@ public function getTranslatorVariable()
         $translator = $this->get('translator');
         $translator->trans('variable');
     }
+
+    public function getPdfFilename(string $locale)
+    {
+        return $this->translator->trans('my.pdf', [], 'generic', $locale);
+    }
+
+    public function static()
+    {
+        $translator = static::$container->get('translator'); $foo = $translator->trans('bar');
+    }
 }