add a test matrix to test all Symfony versions (#285)

* add a test matrix to test all Symfony versions

* exclude monolog-bundle from version replacement

* Remove scrutinizer/ocular from dev dependencies

Let's avoid issues while requiring Symfony 5: https://travis-ci.org/getsentry/sentry-symfony/jobs/621355101#L507

* Use Ocular as PHAR

Author: garak

.travis.yml

@@ -14,6 +14,10 @@ cache:
 
 before_install:
   - phpenv config-rm xdebug.ini || echo "Can't disable xDebug"
+  - |
+    if [ "$SYMFONY_VERSION" != "" ]; then
+      sed -ri '/symfony\/monolog-bundle/! s/"symfony\/(.+)": "(.+)"/"symfony\/\1": "'$SYMFONY_VERSION'"/' composer.json;
+    fi;
   - composer self-update
   - composer global require hirak/prestissimo
 
@@ -27,7 +31,12 @@ jobs:
   include:
     - stage: Test
       php: 7.1
-      name: prefer-lowest
+      env: SYMFONY_VERSION=3.4.*
+    - php: 7.3
+      env: SYMFONY_VERSION=4.4.*
+    - php: 7.4
+      env: SYMFONY_VERSION=5.0.*
+    - name: prefer-lowest
       install:
         - travis_retry travis_wait composer install --no-interaction --prefer-dist
         - composer remove --dev friendsofphp/php-cs-fixer phpstan/phpstan phpstan/phpstan-phpunit jangregor/phpstan-prophecy --no-update
@@ -43,7 +52,8 @@ jobs:
       script: 
         - phpdbg -qrr vendor/bin/phpunit --coverage-clover clover.xml
       after_success:
-        - vendor/bin/ocular code-coverage:upload --format=php-clover clover.xml --revision=$TRAVIS_COMMIT
+        - wget https://scrutinizer-ci.com/ocular.phar
+        - php ocular.phar code-coverage:upload --format=php-clover clover.xml --revision=$TRAVIS_COMMIT
   allow_failures:
     - name: sentry/sentry dev-develop
       stage: Test

composer.json

@@ -37,7 +37,6 @@
         "phpstan/phpstan-shim": "^0.11",
         "phpstan/phpstan-phpunit": "^0.11",
         "phpunit/phpunit": "^7.5",
-        "scrutinizer/ocular": "^1.4",
         "symfony/browser-kit": "^3.4||^4.0",
         "symfony/expression-language": "^3.4||^4.0",
         "symfony/framework-bundle": "^3.4||^4.0",