Adjust test & php compatible version

.travis.yml

@@ -1,16 +1,13 @@
 language: php
 
 php:
-  - 5.2
+    - 5.4
-  - 5.3
+    - 5.5
-  - 5.4
+    - 5.6
-  - 5.5
-  - 5.6
 
 before_script:
-  - composer self-update
+    - composer self-update
-  - echo 'date.timezone = "Europe/Paris"' >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+    - composer install --prefer-dist --no-interaction
-  - composer install --prefer-dist --no-interaction
 
 script:
-  - phpunit --coverage-text
+    - phpunit --coverage-text

composer.json

@@ -24,7 +24,7 @@
         "role": "Developer (original JS version)"
     }],
     "require": {
-        "php": ">=5.2",
+        "php": ">=5.4",
         "ext-tidy": ">=1.2"
     },
     "autoload": {

tests/ReadabilityTest.php

@@ -20,14 +20,6 @@ class ReadabilityTested extends Readability
 
 class ReadabilityTest extends \PHPUnit_Framework_TestCase
 {
-    protected function setUp()
-    {
-    }
-
-    protected function tearDown()
-    {
-    }
-
     public function testConstructDefault()
     {
         $readability = new ReadabilityTested('');