Merge pull request #301 from W0rma/php74

Test against php 7.4

Author: goetas

.travis.yml

@@ -8,19 +8,15 @@ cache:
 php:
   - '7.2'
   - '7.3'
+  - '7.4snapshot'
 
 env:
-  - SYMFONY_VERSION=^3.4 JMS_VERSION=^2.1
-  - SYMFONY_VERSION=^4.0 JMS_VERSION=^2.1
-  - SYMFONY_VERSION=^5.0 JMS_VERSION=^2.1
-
-  - SYMFONY_VERSION=^3.4 JMS_VERSION=^3.0
-  - SYMFONY_VERSION=^4.0 JMS_VERSION=^3.0
-  - SYMFONY_VERSION=^5.0 JMS_VERSION=^3.0
+  - SYMFONY_VERSION=^3.4
+  - SYMFONY_VERSION=^4.0
+  - SYMFONY_VERSION=^5.0
 
 
 before_install:
-  - composer require --no-update jms/serializer "$JMS_VERSION"
   - composer require --no-update symfony/expression-language "$SYMFONY_VERSION"
   - composer require --no-update --dev symfony/yaml "$SYMFONY_VERSION"
   - composer require --no-update --dev symfony/routing "$SYMFONY_VERSION"

composer.json

@@ -19,7 +19,7 @@
     "require": {
         "php": "^7.2",
         "doctrine/annotations": "~1.0",
-        "jms/serializer": "^2.1|^3.0",
+        "jms/serializer": "^3.2",
         "jms/metadata": "^2.0",
         "symfony/expression-language": "~3.0 || ~4.0 || ~5.0"
     },