Merge pull request #15 from phil-davis/test-with-php-8.0

Test with PHP 8.0

.travis.yml

@@ -7,26 +7,37 @@ php:
 
 env:
   global:
+    - RUN_PHPCSFIXER="TRUE"
+    - RUN_PHPUNIT="TRUE"
     - RUN_PHPSTAN="FALSE"
   matrix:
     - PREFER_LOWEST="" REPORT_COVERAGE="TRUE" WITH_COVERAGE="--coverage-clover=coverage.xml"
     - PREFER_LOWEST="--prefer-lowest" REPORT_COVERAGE="FALSE" WITH_COVERAGE=""
 
 matrix:
   include:
+    - name: 'PHP8'
+      dist: focal
+      php: nightly
+      env:
+        - RUN_PHPCSFIXER="FALSE"
+        - REPORT_COVERAGE="FALSE"
     - name: 'PHPStan'
       php: 7.4
       env:
+        - RUN_PHPCSFIXER="FALSE"
+        - RUN_PHPUNIT="FALSE"
         - RUN_PHPSTAN="TRUE"
         - REPORT_COVERAGE="FALSE"
   fast_finish: true
 
 before_script:
+  - if [ $RUN_PHPCSFIXER == "FALSE" ]; then composer remove --dev friendsofphp/php-cs-fixer; fi
   - composer update $PREFER_LOWEST
 
 script:
-  - if [ $RUN_PHPSTAN == "FALSE" ]; then php vendor/bin/php-cs-fixer fix --dry-run --diff; fi
-  - if [ $RUN_PHPSTAN == "FALSE" ]; then php vendor/bin/phpunit --configuration tests/phpunit.xml $WITH_COVERAGE; fi
+  - if [ $RUN_PHPCSFIXER == "TRUE" ]; then php vendor/bin/php-cs-fixer fix --dry-run --diff; fi
+  - if [ $RUN_PHPUNIT == "TRUE" ]; then php vendor/bin/phpunit --configuration tests/phpunit.xml $WITH_COVERAGE; fi
   - if [ $RUN_PHPSTAN == "TRUE" ]; then composer phpstan; fi
 
 after_success:

composer.json

@@ -10,7 +10,7 @@
     "homepage": "http://sabre.io/dav/",
     "license": "BSD-3-Clause",
     "require": {
-        "php"       : "^7.1",
+        "php"       : "^7.1 || ^8.0",
         "sabre/xml" : "^2.0"
     },
     "authors": [