Merge pull request #39 from UseMuffin/travis

Test with lowest dep. versions.

Author: ADmad

.semver

@@ -19,32 +19,36 @@ matrix:
   fast_finish: true
 
   include:
-    - php: 7.0
+    - php: 7.1
       env: PHPCS=1 DEFAULT=0
 
-    - php: 7.0
+    - php: 7.1
       env: PHPSTAN=1 DEFAULT=0
 
+    - php: 5.6
+      env: PREFER_LOWEST=1
+
 before_script:
-  - if [[ $TRAVIS_PHP_VERSION != 7.0 ]]; then phpenv config-rm xdebug.ini; fi
+  - if [[ $TRAVIS_PHP_VERSION != 7.1 ]]; then phpenv config-rm xdebug.ini; fi
 
   - if [[ $DB = 'mysql' ]]; then mysql -e 'CREATE DATABASE cakephp_test;'; fi
   - if [[ $DB = 'pgsql' ]]; then psql -c 'CREATE DATABASE cakephp_test;' -U postgres; fi
 
-  - composer install --prefer-dist --no-interaction
+  - if [[ $PREFER_LOWEST != 1 ]]; then composer update --no-interaction; fi
+  - if [[ $PREFER_LOWEST == 1 ]]; then composer update --no-interaction --prefer-lowest --prefer-stable; fi
 
   - if [[ $PHPCS = 1 ]]; then composer require cakephp/cakephp-codesniffer:"^3.0"; fi
 
 script:
-  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION != 7.0 ]]; then vendor/bin/phpunit; fi
-  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION = 7.0 ]]; then vendor/bin/phpunit --coverage-clover=clover.xml; fi
+  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION != 7.1 ]]; then vendor/bin/phpunit; fi
+  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION = 7.1 ]]; then vendor/bin/phpunit --coverage-clover=clover.xml; fi
 
   - if [[ $PHPCS = 1 ]]; then vendor/bin/phpcs -n -p --extensions=php --standard=vendor/cakephp/cakephp-codesniffer/CakePHP ./src ./tests; fi
 
   - if [[ $PHPSTAN = 1 ]]; then composer require --dev phpstan/phpstan:^0.9 && vendor/bin/phpstan analyse -l 5 src; fi
 
 after_success:
-  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION = 7.0 ]]; then bash <(curl -s https://codecov.io/bash); fi
+  - if [[ $DEFAULT = 1 && $TRAVIS_PHP_VERSION = 7.1 ]]; then bash <(curl -s https://codecov.io/bash); fi
 
 notifications:
   email: false