Update .travis.yml

.travis.yml

@@ -1,20 +1,39 @@
-language: php
+cache:
+    directories:
+        - $HOME/.composer/cache
 
-php:
-  - 7.2
-  - 7.3
+language: php
 
 env:
-  matrix:
-    - COMPOSER_FLAGS="--prefer-lowest"
-    - COMPOSER_FLAGS=""
+    global:
+        - COVERAGE=0
+
+matrix:
+    include:
+        - php: 7.2
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.2
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.2
+          env: LARAVEL='6.0.*' TESTBENCH='4.0.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.2
+          env: LARAVEL='6.0.*' TESTBENCH='4.0.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.3
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.3
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.3
+          env: LARAVEL='6.0.*' TESTBENCH='4.0.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.3
+          env: LARAVEL='6.0.*' TESTBENCH='4.0.*' COMPOSER_FLAGS='--prefer-stable'
+    fast_finish: true
 
 before_script:
-  - travis_retry composer self-update
-  - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-source
+    - composer config discard-changes true
 
-script:
-  - phpunit --coverage-text --coverage-clover=coverage.clover
+before_install:
+    - travis_retry composer self-update
+    - travis_retry composer require "laravel/framework:${LARAVEL}" "orchestra/testbench:${TESTBENCH}" --no-interaction --no-update
 
-after_script:
-  - php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover
+install:
+    - travis_retry composer update ${COMPOSER_FLAGS} --prefer-dist --no-interaction --no-suggest