GH-4: Run tests on --prefer-lowest too.

Author: ademarco

.travis.yml

@@ -13,21 +13,26 @@ services:
 env:
   global:
     - DOCKER_COMPOSE_VERSION=1.22.0
+  matrix:
+    - COMPOSER_BOUNDARY=lowest
+    - COMPOSER_BOUNDARY=highest
+
 
 before_install:
-  - docker-compose up -d
+  - 'docker-compose up -d'
 
 install:
-  - docker-compose exec web composer install
-  - docker-compose exec web chown -R www-data:www-data build
+  - 'docker-compose exec web composer install  --ansi --no-suggest --no-progress'
+  - '[[ ${COMPOSER_BOUNDARY} == "lowest" ]] && docker-compose exec web composer update --prefer-lowest --ansi --no-suggest --no-progress'
+  - 'docker-compose exec web chown -R www-data:www-data build'
 
 before_script:
-  - docker-compose exec web ./vendor/bin/run drupal:site-install
-  - docker-compose exec web chmod -R 775 build/sites/default
+  - 'docker-compose exec web ./vendor/bin/run drupal:site-install'
+  - 'docker-compose exec web chmod -R 775 build/sites/default'
 
 script:
-  - docker-compose exec web ./vendor/bin/grump run
-  - docker-compose exec web ./vendor/bin/behat --strict
+  - 'docker-compose exec web ./vendor/bin/grumphp run'
+  - 'docker-compose exec web ./vendor/bin/behat --strict'
 
 notifications:
   email: false