Add PHPUnit to require-dev

Author: clue

.travis.yml

@@ -16,4 +16,4 @@ install:
   - composer install --prefer-source --no-interaction
 
 script:
-  - phpunit --coverage-text
+  - vendor/bin/phpunit --coverage-text

README.md

@@ -327,6 +327,21 @@ $launcher = new Launcher($loop);
 $launcher->setBin('/path/to/zenity');
 ```
 
+## Tests
+
+To run the test suite, you first need to clone this repo and then install all
+dependencies [through Composer](https://getcomposer.org):
+
+```bash
+$ composer install
+```
+
+To run the test suite, go to the project root and run:
+
+```bash
+$ php vendor/bin/phpunit
+```
+
 ## License
 
 MIT

composer.json

@@ -17,7 +17,8 @@
         "react/child-process": "~0.4.0|~0.3.0"
     },
     "require-dev": {
-        "clue/block-react": "^1.1"
+        "clue/block-react": "^1.1",
+        "phpunit/phpunit": "^4.8"
     },
     "autoload": {
         "psr-4": { "Clue\\React\\Zenity\\": "src/" }