Update PHP CS Fixer

Author: dunglas

.travis.yml

@@ -20,7 +20,7 @@ before_install:
   - phpenv config-rm xdebug.ini || echo "xdebug not available"
   - echo "memory_limit=-1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - npm install -g swagger-cli
-  - if [[ $lint = 1 ]]; then wget https://github.com/FriendsOfPHP/PHP-CS-Fixer/releases/download/v2.7.1/php-cs-fixer.phar; fi
+  - if [[ $lint = 1 ]]; then wget https://github.com/FriendsOfPHP/PHP-CS-Fixer/releases/download/v2.8.2/php-cs-fixer.phar; fi
   - if [[ $lint = 1 ]]; then composer global require --dev 'phpstan/phpstan:^0.8'; fi
   - export PATH="$PATH:$HOME/.composer/vendor/bin"
 

tests/Swagger/Serializer/DocumentationNormalizerTest.php

@@ -1046,9 +1046,9 @@ public function testSupports()
 
         $documentation = new Documentation(new ResourceNameCollection([Dummy::class]), 'Test API', 'This is a test API.', '1.2.3', ['jsonld' => ['application/ld+json']]);
 
-        $this->assertEquals(true, $normalizer->supportsNormalization($documentation, 'json'));
-        $this->assertEquals(false, $normalizer->supportsNormalization($documentation));
-        $this->assertEquals(false, $normalizer->supportsNormalization(new Dummy(), 'json'));
+        $this->assertTrue($normalizer->supportsNormalization($documentation, 'json'));
+        $this->assertFalse($normalizer->supportsNormalization($documentation));
+        $this->assertFalse($normalizer->supportsNormalization(new Dummy(), 'json'));
     }
 
     public function testNoOperations()