downgrade phpunit to version 5 to support atleast php5.6

darryldecode · darryldecode · commit 9f696dacabfd · 2018-06-18T23:58:03.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,10 @@
 language: php
 
 php:
-  - 5.5
   - 5.6
   - 7.0
+  - 7.1
+  - 7.2
 
 before_script:
   - travis_retry composer self-update
diff --git a/composer.json b/composer.json
@@ -17,7 +17,7 @@
     },
     "require-dev": {
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^7.0",
+        "phpunit/phpunit": "^5.0",
         "symfony/var-dumper": "2.7.*@dev"
     },
     "autoload": {
