Update phpunit to 5.6 & min php version 7

Author: ankurk91

.travis.yml

@@ -14,14 +14,11 @@ git:
 
 # Define the php versions against we want to test our code
 php:
-    - 5.6
     - 7.0
 
 
 matrix:
   fast_finish: true
-  allow_failures:
-    - php: 7.0
 
 
 # We don't want to run linux commands as super user
@@ -45,7 +42,7 @@ before_script:
 
 # Testing the app (see phpunit.xml), generating Code Coverage report
 script:
-  - phpunit --coverage-clover build/logs/clover.xml
+  - ./vendor/bin/phpunit --coverage-clover build/logs/clover.xml
 
 
 #after_script:

README.md

@@ -6,15 +6,16 @@
 
 
 ### Prerequisites
-* php v5.6.26+ || v7.0+
-* [phpunit](https://github.com/sebastianbergmann/phpunit/) v5.4.6
+* php v7.0+, [requirements](https://phpunit.de/manual/current/en/installation.html#installation.requirements)
+* [phpunit](https://github.com/sebastianbergmann/phpunit/) v5.6.0
 * [php-coveralls](https://github.com/satooshi/php-coveralls) v1.0.1
-* php [Xdebug](https://xdebug.org/) extension
+* php [Xdebug](https://xdebug.org/) extension v2.5.0+
 
 ### Test on localhost
 ```
 cd path/to/this-project
-phpunit
+composer install
+composer run test
 ```
 
 #### Resources

app/Classes/Calculator.php

@@ -55,7 +55,7 @@ public function subtractTwo($x, $y)
 
     /**
      * Divide two numbers
-     * //TODO Handle divide by zero
+     * //todo Handle divide by zero
      *
      * @param $x
      * @param $y

composer.json

@@ -10,12 +10,16 @@
   "require": {
   },
   "require-dev": {
+    "phpunit/phpunit": "^6.0"
   },
   "autoload": {
     "classmap": [
       "app/Classes"
     ]
   },
+  "scripts": {
+    "test": "./vendor/bin/phpunit"
+  },
   "config": {
     "preferred-install": "dist",
     "optimize-autoloader": true