Allow Symfony ^4.0 (#94)

* Allow Symfony ^4.0 as composer dependency

* Updated Travis matrix to build last possible versions

* Travis build fix

* Require specific phpunit version to avoid failures

* Bugfixed wrong phpunit bin file usage

* Normalize travis testing matrix like other lexik bundles

* Fixed HHVM failure ignore

.travis.yml

@@ -1,27 +1,30 @@
 language: php
 
-sudo: false
-
-cache:
-    directories:
-        - $HOME/.composer/cache
-
-php:
-    - 5.5
-    - 5.6
-    - 7.0
-    - hhvm
-
 matrix:
     fast_finish: true
+    include:
+        - php: 5.5
+          env: SYMFONY_VERSION=2.7.*
+        - php: 5.5
+          env: SYMFONY_VERSION=2.8.*
+        - php: 5.5
+          env: SYMFONY_VERSION=3.4.*
+        - php: 7.1
+          env: SYMFONY_VERSION=4.0.*
+        - php: 7.2
+          env: SYMFONY_VERSION=4.1.*
+        - php: 7.2
+          env: SYMFONY_VERSION=4.2.*
+        - php: hhvm-stable
+          sudo: required
+          dist: trusty
+          group: edge
     allow_failures:
-        - php: hhvm
-        - php: 7.0
+        - php: hhvm-stable
 
-env:
-    - SYMFONY_VERSION=2.7.*
-    - SYMFONY_VERSION=2.8.*
-    - SYMFONY_VERSION=3.0.*
+cache:
+    directories:
+        - $HOME/.composer/cache
 
 before_install:
     - composer require symfony/framework-bundle:${SYMFONY_VERSION} --no-update
@@ -30,4 +33,4 @@ before_install:
 
 install: composer install --prefer-dist --no-interaction
 
-script: phpunit
+script: vendor/bin/phpunit

composer.json

@@ -14,13 +14,13 @@
         "psr/log": "~1.0",
         "lib-curl": ">=7.10.0",
         "lib-openssl": ">=0.9.6",
-        "symfony/framework-bundle": "~2.7|~3.0",
-        "symfony/form": "~2.7|~3.0",
-        "symfony/options-resolver": "~2.7|~3.0",
+        "symfony/framework-bundle": "~2.7|~3.0|~4.0",
+        "symfony/form": "~2.7|~3.0|~4.0",
+        "symfony/options-resolver": "~2.7|~3.0|~4.0",
         "kriswallsmith/buzz": "~0.15"
     },
     "require-dev": {
-        "symfony/phpunit-bridge": "^2.7.4"
+        "phpunit/phpunit": "~4.0"
     },
     "autoload": {
         "psr-4": { "Lexik\\Bundle\\PayboxBundle\\": "" }