diff --git a/src/Symfony/Component/Console/Tests/Output/StreamOutputTest.php b/src/Symfony/Component/Console/Tests/Output/StreamOutputTest.php
index b85007dea69b9..55547bda4840e 100644
--- a/src/Symfony/Component/Console/Tests/Output/StreamOutputTest.php
+++ b/src/Symfony/Component/Console/Tests/Output/StreamOutputTest.php
@@ -62,11 +62,6 @@ public function testDoWriteOnFailure()
     {
         $resource = fopen(__DIR__.'/../Fixtures/stream_output_file.txt', 'r', false);
         $output = new StreamOutput($resource);
-        try {
-            $output->writeln('foo');
-        } catch (\RuntimeException $exception) {
-            throw new AssertionFailedError('Should not fail.');
-        }
         rewind($output->getStream());
         $this->assertEquals('', stream_get_contents($output->getStream()));
     }