Run tests on PHP 8.

Author: ADmad

.travis.yml

@@ -2,8 +2,8 @@ language: php
 
 php:
   - 7.2
-  - 7.3
   - 7.4
+  - 'nightly'
 
 env:
   global:
@@ -25,14 +25,22 @@ before_script:
   - if [[ $STATIC_ANALYSIS == 1 ]]; then composer stan-setup; fi
 
 script:
-  - if [[ $DEFAULT == 1 && $TRAVIS_PHP_VERSION != 7.3 ]]; then vendor/bin/phpunit; fi
-  - if [[ $DEFAULT == 1 && $TRAVIS_PHP_VERSION == 7.3 ]]; then vendor/bin/phpunit --coverage-clover=clover.xml; fi
+  - |
+      if [[ $DEFAULT == 1 ]]; then
+        if [[ $TRAVIS_PHP_VERSION == 'nightly' ]]; then
+          omposer install --no-interaction --ignore-platform-reqs
+        elif [[ $TRAVIS_PHP_VERSION == 7.4 ]]; then
+          vendor/bin/phpunit --coverage-clover=clover.xml
+        else
+          vendor/bin/phpunit
+        fi
+      fi
 
   - if [[ $STATIC_ANALYSIS == 1 ]]; then composer stan; fi
   - if [[ $PHPCS == 1 ]]; then composer cs-check; fi
 
 after_success:
-  - if [[ $DEFAULT == 1 && $TRAVIS_PHP_VERSION == 7.3 ]]; then bash <(curl -s https://codecov.io/bash); fi
+  - if [[ $DEFAULT == 1 && $TRAVIS_PHP_VERSION == 7.4 ]]; then bash <(curl -s https://codecov.io/bash); fi
 
 notifications:
   email: false

composer.json

@@ -24,7 +24,7 @@
     },
     "require-dev": {
         "cakephp/cakephp-codesniffer": "^4.0",
-        "phpunit/phpunit": "~8.5.0",
+        "phpunit/phpunit": "^8.5 || ^9.3",
         "cakephp/bake": "^2.0"
     },
     "autoload": {