diff --git a/src/Symfony/Component/Console/Tests/Helper/ProcessHelperTest.php b/src/Symfony/Component/Console/Tests/Helper/ProcessHelperTest.php
index 2e333dc05e..9f83885a50 100644
--- a/src/Symfony/Component/Console/Tests/Helper/ProcessHelperTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/ProcessHelperTest.php
@@ -13,7 +13,6 @@ namespace Symfony\Component\Console\Tests\Helper;
 
 use Symfony\Component\Console\Helper\DebugFormatterHelper;
 use Symfony\Component\Console\Helper\HelperSet;
-use Symfony\Component\Console\Helper\Helper;
 use Symfony\Component\Console\Output\StreamOutput;
 use Symfony\Component\Console\Helper\ProcessHelper;
 use Symfony\Component\Process\Process;
@@ -59,7 +58,7 @@ EOT;
 
 EOT;
         $successOutputDebugWithTags = <<<EOT
-  RUN  php -r "echo \"<info>42</info>\";"
+  RUN  php -r "echo '<info>42</info>';"
   OUT  <info>42</info>
   RES  Command ran successfully
 
@@ -92,7 +91,7 @@ EOT;
             array('', 'php -r "echo 42;"', StreamOutput::VERBOSITY_VERBOSE, null),
             array($successOutputVerbose, 'php -r "echo 42;"', StreamOutput::VERBOSITY_VERY_VERBOSE, null),
             array($successOutputDebug, 'php -r "echo 42;"', StreamOutput::VERBOSITY_DEBUG, null),
-            array($successOutputDebugWithTags, 'php -r "echo \"<info>42</info>\";"', StreamOutput::VERBOSITY_DEBUG, null),
+            array($successOutputDebugWithTags, 'php -r "echo \'<info>42</info>\';"', StreamOutput::VERBOSITY_DEBUG, null),
             array('', 'php -r "syntax error"', StreamOutput::VERBOSITY_VERBOSE, null),
             array($syntaxErrorOutputVerbose, 'php -r "fwrite(STDERR, \'error message\');usleep(50000);fwrite(STDOUT, \'out message\');exit(252);"', StreamOutput::VERBOSITY_VERY_VERBOSE, null),
             array($syntaxErrorOutputDebug, 'php -r "fwrite(STDERR, \'error message\');usleep(50000);fwrite(STDOUT, \'out message\');exit(252);"', StreamOutput::VERBOSITY_DEBUG, null),
diff --git a/src/Symfony/Component/Console/Tests/Helper/ProgressBarTest.php b/src/Symfony/Component/Console/Tests/Helper/ProgressBarTest.php
index 59c06bbeeb..97b99efe74 100644
--- a/src/Symfony/Component/Console/Tests/Helper/ProgressBarTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/ProgressBarTest.php
@@ -323,17 +323,17 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
 
         rewind($output->getStream());
         $this->assertEquals(
-            "   0/200 [>---------------------------]   0%\n".
-            "  20/200 [==>-------------------------]  10%\n".
-            "  40/200 [=====>----------------------]  20%\n".
-            "  60/200 [========>-------------------]  30%\n".
-            "  80/200 [===========>----------------]  40%\n".
-            " 100/200 [==============>-------------]  50%\n".
-            " 120/200 [================>-----------]  60%\n".
-            " 140/200 [===================>--------]  70%\n".
-            " 160/200 [======================>-----]  80%\n".
-            " 180/200 [=========================>--]  90%\n".
-            " 200/200 [============================] 100%",
+            '   0/200 [>---------------------------]   0%'.PHP_EOL.
+            '  20/200 [==>-------------------------]  10%'.PHP_EOL.
+            '  40/200 [=====>----------------------]  20%'.PHP_EOL.
+            '  60/200 [========>-------------------]  30%'.PHP_EOL.
+            '  80/200 [===========>----------------]  40%'.PHP_EOL.
+            ' 100/200 [==============>-------------]  50%'.PHP_EOL.
+            ' 120/200 [================>-----------]  60%'.PHP_EOL.
+            ' 140/200 [===================>--------]  70%'.PHP_EOL.
+            ' 160/200 [======================>-----]  80%'.PHP_EOL.
+            ' 180/200 [=========================>--]  90%'.PHP_EOL.
+            ' 200/200 [============================] 100%',
             stream_get_contents($output->getStream())
         );
     }
@@ -349,9 +349,9 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
 
         rewind($output->getStream());
         $this->assertEquals(
-            "  0/50 [>---------------------------]   0%\n".
-            " 25/50 [==============>-------------]  50%\n".
-            " 50/50 [============================] 100%",
+            '  0/50 [>---------------------------]   0%'.PHP_EOL.
+            ' 25/50 [==============>-------------]  50%'.PHP_EOL.
+            ' 50/50 [============================] 100%',
             stream_get_contents($output->getStream())
         );
     }
@@ -364,8 +364,8 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
 
         rewind($output->getStream());
         $this->assertEquals(
-            "    0 [>---------------------------]\n".
-            "    1 [->--------------------------]",
+            '    0 [>---------------------------]'.PHP_EOL.
+            '    1 [->--------------------------]',
             stream_get_contents($output->getStream())
         );
     }
@@ -500,7 +500,7 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
             $mem = 100000 * $i;
             $colors = $i++ ? '41;37' : '44;37';
 
-            return "\033[".$colors."m ".Helper::formatMemory($mem)." \033[0m";
+            return "\033[".$colors.'m '.Helper::formatMemory($mem)." \033[0m";
         });
         $bar->setFormat(" \033[44;37m %title:-37s% \033[0m\n %current%/%max% %bar% %percent:3s%%\n 🏁  %remaining:-10s% %memory:37s%");
         $bar->setBarCharacter($done = "\033[32m●\033[0m");
@@ -518,17 +518,17 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(
             $this->generateOutput(
                 " \033[44;37m Starting the demo... fingers crossed  \033[0m\n".
-                "  0/15 ".$progress.str_repeat($empty, 26)."   0%\n".
+                '  0/15 '.$progress.str_repeat($empty, 26)."   0%\n".
                 " \xf0\x9f\x8f\x81  1 sec                          \033[44;37m 0 B \033[0m"
             ).
             $this->generateOutput(
                 " \033[44;37m Looks good to me...                   \033[0m\n".
-                "  4/15 ".str_repeat($done, 7).$progress.str_repeat($empty, 19)."  26%\n".
+                '  4/15 '.str_repeat($done, 7).$progress.str_repeat($empty, 19)."  26%\n".
                 " \xf0\x9f\x8f\x81  1 sec                       \033[41;37m 97 KiB \033[0m"
             ).
             $this->generateOutput(
                 " \033[44;37m Thanks, bye                           \033[0m\n".
-                " 15/15 ".str_repeat($done, 28)." 100%\n".
+                ' 15/15 '.str_repeat($done, 28)." 100%\n".
                 " \xf0\x9f\x8f\x81  1 sec                      \033[41;37m 195 KiB \033[0m"
             ),
             stream_get_contents($output->getStream())
@@ -570,7 +570,7 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
     }
 
     /**
-     * Provides each defined format
+     * Provides each defined format.
      *
      * @return array
      */