Lock dependencies and fix tests

Author: tomphp

.travis.yml

@@ -1,7 +1,7 @@
 language: php
 before_script:
   - composer install --dev --prefer-dist
-script: phpunit; php vendor/bin/behat --format progress
+script: php vendor/bin/phpunit; php vendor/bin/behat --format progress
 php:
   - 5.4
   - 5.5

composer.json

@@ -11,17 +11,18 @@
         "nikic/php-parser": "@stable",
         "beberlei/assert": "@stable",
         "andrewsville/php-token-reflection": "@stable",
-        "symfony/finder": "@stable",
-        "symfony/console": "@stable",
-        "tomphp/patch-builder": "dev-master"
+        "symfony/finder": "^2.4.0@stable",
+        "symfony/console": "^2.4.0@stable",
+        "tomphp/patch-builder": "^0.1"
     },
 
     "require-dev": {
         "php": ">=5.4",
-        "behat/behat": "@stable",
+        "behat/behat": "^2.5@stable",
         "mikey179/vfsStream": "@stable",
         "phake/phake": "@stable",
-        "symfony/process": "@stable"
+        "symfony/process": "@stable",
+        "phpunit/phpunit": "^4.6@stable"
     },
 
     "autoload": {