setup coveralls

Author: emsifa

.travis.yml

@@ -10,4 +10,7 @@ before_script:
   - ./vendor/bin/phpcs -n --standard=PSR2 src/ tests/
 
 script:
-  - ./vendor/bin/phpunit --coverage-text
+  - ./vendor/bin/phpunit --coverage-clover build/logs/clover.xml
+
+after_script:
+  - travis_retry php vendor/bin/php-coveralls -v

composer.json

@@ -24,7 +24,8 @@
   },
   "require-dev": {
     "phpunit/phpunit": "^6.5",
-    "squizlabs/php_codesniffer": "^3"
+    "squizlabs/php_codesniffer": "^3",
+    "php-coveralls/php-coveralls": "^2.2"
   },
   "scripts": {
     "test": [