Updated Travis CI configuration

- updated legacy dependencies
- removed allow_failures on PHP 7.2
- removed composer self-update
- moved cs-check and coverage to run on PHP 7.1 with locked deps

Author: michalbundyra

.travis.yml

@@ -10,7 +10,6 @@ env:
   global:
     - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="satooshi/php-coveralls"
-    - LEGACY_DEPS="phpunit/phpunit"
 
 matrix:
   include:
@@ -20,6 +19,7 @@ matrix:
     - php: 5.6
       env:
         - DEPS=locked
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 5.6
       env:
         - DEPS=latest
@@ -29,8 +29,7 @@ matrix:
     - php: 7
       env:
         - DEPS=locked
-        - CS_CHECK=true
-        - TEST_COVERAGE=true
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 7
       env:
         - DEPS=latest
@@ -40,6 +39,8 @@ matrix:
     - php: 7.1
       env:
         - DEPS=locked
+        - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.1
       env:
         - DEPS=latest
@@ -52,16 +53,13 @@ matrix:
     - php: 7.2
       env:
         - DEPS=latest
-  allow_failures:
-    - php: 7.2
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
 
 install:
   - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
-  - if [[ $TRAVIS_PHP_VERSION =~ ^5.6 ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
+  - if [[ $LEGACY_DEPS != '' ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi