Test more Symfony versions

.travis.yml

@@ -2,12 +2,11 @@ language: php
 
 php:
     - 7.1
-    - nightly
 
-matrix:
-    allow_failures:
-        - php: nightly
-    fast_finish: true
+env:
+    - SYMFONY_VERSION=~3.3.0
+    - SYMFONY_VERSION=~3.4.0 MINIMUM_STABILITY=beta
+    - SYMFONY_VERSION=~4.0.0 MINIMUM_STABILITY=beta
 
 cache:
     directories:
@@ -16,6 +15,12 @@ cache:
 before_install:
     - phpenv config-rm xdebug.ini || true
 
+    - |
+        if [[ ! -z $MINIMUM_STABILITY ]]; then
+            composer config minimum-stability $MINIMUM_STABILITY
+        fi
+    - composer require --no-update symfony/http-kernel:$SYMFONY_VERSION symfony/framework-bundle:$SYMFONY_VERSION
+
 install:
     - composer update --prefer-dist
 

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "friends-of-behat/symfony-extension",
-    "description": "Integrates Behat with Symfony (both 2 and 3).",
+    "description": "Integrates Behat with Symfony.",
     "license": "MIT",
     "authors": [
         {
@@ -13,7 +13,7 @@
         "php": "^7.1",
 
         "behat/behat": "^3.1",
-        "symfony/http-kernel": "^3.0"
+        "symfony/http-kernel": "^3.3|^4.0"
     },
     "require-dev": {
         "behat/mink": "^1.7",
@@ -21,7 +21,7 @@
         "behat/mink-extension": "^2.2",
         "friends-of-behat/cross-container-extension": "^1.0",
         "friends-of-behat/test-context": "^1.0",
-        "symfony/framework-bundle": "^3.0"
+        "symfony/framework-bundle": "^3.3|^4.0"
     },
     "suggest": {
         "behat/mink-browserkit-driver": "^1.3",