Merge pull request #37 from peter279k/test_enhancement

Test enhancement

Author: n1crack

.travis.yml

@@ -8,7 +8,8 @@ php:
   - 7.2
 
 before_script:
-  - travis_retry composer install --prefer-source --no-interaction
+  - travis_retry composer update --prefer-source --no-interaction
 
 script:
   - vendor/bin/phpspec run --config=phpspec.yml --no-interaction
+  - vendor/bin/phpunit

composer.json

@@ -12,10 +12,21 @@
     }
   ],
   "autoload": {
-    "psr-4": {"Ozdemir\\Datatables\\": "src/"}
+    "psr-4": {
+      "Ozdemir\\Datatables\\": "src/"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Ozdemir\\Datatables\\Test\\": "src/tests/unit"
+    }
   },
   "minimum-stability": "dev",
+  "require": {
+    "php": ">=5.5"
+  },
   "require-dev": {
-    "phpspec/phpspec": "~2.0"
+    "phpspec/phpspec": "^2.0",
+    "phpunit/phpunit": "^4.8 || ^5.7 || ^6.5"
   }
 }