Updated PHPUnit to 5.1 and fixed some of the tests.

Author: udan11

composer.json

@@ -18,12 +18,12 @@
         "php": ">=5.3.0"
     },
     "require-dev": {
-        "phpunit/php-code-coverage": "~2.0",
-        "phpunit/phpunit": "~4.0|~5.0"
+        "phpunit/php-code-coverage": "~3.0",
+        "phpunit/phpunit": "~5.1"
     },
     "autoload": {
         "psr-4": {
             "SqlParser\\": "src"
         }
     }
-}
+}