Symfony 4 compatiblity. Test with PHP 7+.

.travis.yml

@@ -7,32 +7,31 @@ cache:
     - $HOME/.composer/cache/files
 
 php:
-  - 5.3
   - 5.4
   - 5.5
   - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
   - hhvm
 
 matrix:
   include:
-    - php: 5.5
+    - php: 7.2
-      env: SYMFONY_VERSION='2.3.*'
+      env: SYMFONY_VERSION='^2'
+    - php: 7.2
+      env: SYMFONY_VERSION='^3'
     # Test against dev dependencies
-    - php: 5.6
+    - php: 7.2
       env: DEPS=dev
 
 before_install:
-  - composer self-update
+  - if [ "$SYMFONY_VERSION" != "" ]; then composer require --no-update symfony/lts=$SYMFONY_VERSION; fi;
-  - if [ "$SYMFONY_VERSION" != "" ]; then composer require --no-update symfony/symfony=$SYMFONY_VERSION; fi;
+  - if [ "$DEPS" = 'dev' ]; then composer config minimum-stability dev; fi;
-  - if [ "$DEPS" = 'dev' ]; then perl -pi -e 's/^}$/,"minimum-stability":"dev"}/' composer.json; fi;
 
 install:
   - composer install --no-progress
 
-before_script:
-  - export PATH=./vendor/bin:$PATH
-  - export PATH=./vendor/bin:$PATH
-
 script:
-  - phpspec run -f pretty
+  - vendor/bin/phpspec run -f pretty
-  - behat -fprogress --strict
+  - vendor/bin/behat -fprogress --strict

composer.json

@@ -18,14 +18,14 @@
 
     "require": {
         "php":          ">=5.3.2",
-        "behat/behat":  "~3.0,>=3.0.5",
+        "behat/behat":  "^3.0.5",
-        "behat/mink":   "~1.5",
+        "behat/mink":   "^1.5",
-        "symfony/config": "~2.2|~3.0"
+        "symfony/config": "^2.7|^3.0|^4.0"
     },
 
     "require-dev": {
-        "phpspec/phpspec":          "~2.0",
+        "behat/mink-goutte-driver": "^1.1",
-        "behat/mink-goutte-driver": "~1.1"
+        "phpspec/phpspec":          "^2.0"
     },
 
     "autoload": {