Establishing the last stable version of phpunit as the default one fo…

…r running tests.

.travis.yml

@@ -5,7 +5,6 @@ branches:
 language: php
 
 php:
-  - 5.6
   - 7.0
   - 7.1
   - 7.2
@@ -17,16 +16,20 @@ dist: trusty
 matrix:
   fast_finish: true
   include:
-    - php: 5.6
+    - php: 7.0
       env: SYMFONY_VERSION=2.3.*
-    - php: 5.6
+    - php: 7.0
       env: SYMFONY_VERSION=2.7.*
-    - php: 7.1
+    - php: 7.0
       env: SYMFONY_VERSION=2.8.*
+    - php: 7.1
+      env: SYMFONY_VERSION=3.1.*
     - php: 7.1
       env: SYMFONY_VERSION=3.2.*
     - php: 7.1
       env: SYMFONY_VERSION=3.3.*
+    - php: 7.1
+      env: SYMFONY_VERSION=3.4.*
     - php: 7.2
       env: DEPENDENCIES=beta
 

composer.json

@@ -22,7 +22,7 @@
         "symfony/symfony": "^2.3 || ^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^3.7 || ^6.1"
+        "phpunit/phpunit": "^6.5"
     },
     "autoload": {
         "psr-4": {

tests/bootstrap.php

@@ -17,8 +17,8 @@
     die(
         "Dependencies must be installed using composer:
 
-        wget http://getcomposer.org/composer.phar
-        php composer.phar install
+        curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
+        composer install
 
         Visit http://getcomposer.org/ for more information."
     );