Test lower boundaries of version constraints

Author: wouterj

.travis.yml

@@ -20,23 +20,26 @@ matrix:
   include:
     - php: 5.6
       env: SYMFONY_VERSION=2.3.*
-    - php: 5.6
-      env: SYMFONY_VERSION=2.5.*
     - php: 5.6
       env: SYMFONY_VERSION=2.7.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*
+    - php: 5.3.3
+      env: SYMFONY_VERSION=2.3.* COMPOSER_FLAGS="--prefer-lowest"
   allow_failures:
     - php: 5.6
       env: SYMFONY_VERSION=2.7.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*
 
-before_script:
+before_install:
   - composer self-update
   - if [ "${TRAVIS_PHP_VERSION}" != "hhvm" ]; then echo "memory_limit = -1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini; fi
-  - composer require symfony/symfony:${SYMFONY_VERSION} --prefer-dist
-  - vendor/symfony-cmf/testing/bin/travis/phpcr_odm_doctrine_dbal.sh
+  - composer require symfony/symfony:${SYMFONY_VERSION} --no-update
+  
+install: composer update $COMPOSER_FLAGS --prefer-dist
+
+before_script: vendor/symfony-cmf/testing/bin/travis/phpcr_odm_doctrine_dbal.sh
 
 script: phpunit --coverage-text
 

composer.json

@@ -23,7 +23,7 @@
         "doctrine/phpcr-odm": "~1.1"
     },
     "require-dev": {
-        "symfony-cmf/testing": "~1.2",
+        "symfony-cmf/testing": "dev-lowest_versions",
         "matthiasnoback/symfony-dependency-injection-test": "0.*",
         "matthiasnoback/symfony-config-test": "0.*",
         "sonata-project/doctrine-phpcr-admin-bundle": "~1.1",