Update .travis.yml

Author: savamarkovic

.travis.yml

@@ -1,20 +1,54 @@
-language: php
-php:
-  - '7.1'
-  - '7.2'
-  - '7.3'
-  - '7.4'
-  - '8.0'
-jobs:
-  allow_failures:
-    - php: 8.0
-
 before_script:
   - composer install
 
-script: composer run test
+script: vendor/phpunit/phpunit/phpunit tests/ --whitelist src/ --coverage-clover build/coverage/xml
 
 after_script:
   - php vendor/bin/codacycoverage clover build/coverage/xml
 
-os: linux
+_install_windows: &install_windows
+  install:
+    - choco install php --version $PHP_VERSION --no-progress --package-parameters='"/InstallDir:C:\tools\PHP"'
+    - choco install composer --no-progress --ia '"/DEV=C:\tools\php /PHP=C:\tools\php"'
+    - export PATH=$PATH:/C/tools/php
+
+_install_osx: &install_osx
+  install:
+    - brew unlink python@2
+    - brew install php@$PHP_VERSION
+    - brew install composer
+
+jobs:
+  include:
+    - os: linux
+      language: php
+      php: 7.1
+    - os: linux
+      language: php
+      php: 7.2
+    - os: linux
+      language: php
+      php: 7.3
+    - os: linux
+      language: php
+      php: 8.0
+    - os: osx
+      language: sh
+      env: PHP_VERSION='7.2'
+      <<: *install_osx
+    - os: osx
+      language: sh
+      env: PHP_VERSION='7.3'
+      <<: *install_osx
+    - os: osx
+      language: sh
+      env: PHP_VERSION='8.0'
+      <<: *install_osx
+    - os: windows
+      language: sh
+      env: PHP_VERSION='7.3.9'
+      <<: *install_windows
+    - os: windows
+      language: sh
+      env: PHP_VERSION='8.0.2'
+      <<: *install_windows