simplify travis.yml

.travis.yml

@@ -1,19 +1,13 @@
 language: php
 
-matrix:
-  include:
-    # run extra build with PHP 7.1
-    - php: 7.1
-      # add variables to enable coverage, coding standard check and static analysis
-      env: PHPUNIT_FLAGS="--coverage-clover coverage.xml"
+php:
+  - 7.1
 
 install:
-  # install composer dependencies
   - composer install
 
 script:
-  # run tests
-  - vendor/bin/phpunit $PHPUNIT_FLAGS
+  - vendor/bin/phpunit --coverage-clover coverage.xml
   # check coding standard (defined in composer.json "scripts" section)
   # if this fails, run "composer fix-cs" to fix all fixable issues
   - composer check-cs
@@ -21,13 +15,9 @@ script:
   - composer phpstan
 
 after_script:
-  # upload coverage.xml file to Coveralls to analyze it
-  # minimal required coverage is set to 80+ %
-  - |
-    if [[ $PHPUNIT_FLAGS != "" ]]; then
-      wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
-      php coveralls.phar --verbose
-    fi
+  # upload coverage to Coveralls.io
+  - wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
+  - php coveralls.phar --verbose
 
 notifications:
   email: never