Add PHPUnit to require-dev

Author: clue

.travis.yml

@@ -14,4 +14,4 @@ install:
   - composer install --no-interaction
 
 script:
-  - phpunit --coverage-text
+  - vendor/bin/phpunit --coverage-text

README.md

@@ -17,6 +17,7 @@ built on top of [ReactPHP's SocketClient](https://github.com/reactphp/socket-cli
   * [Concurrent](#concurrent)
   * [Selective](#selective)
 * [Install](#install)
+* [Tests](#tests)
 * [License](#license)
 
 ## Introduction
@@ -207,6 +208,21 @@ $ composer require clue/connection-manager-extra:^0.5
 
 See also the [CHANGELOG](CHANGELOG.md) for more details about version upgrades.
 
+## Tests
+
+To run the test suite, you first need to clone this repo and then install all
+dependencies [through Composer](http://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

@@ -19,5 +19,8 @@
         "react/event-loop": "^0.4 || ^0.3",
         "react/promise": "^2.1 || ^1.2",
         "react/promise-timer": "^1.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^4.8"
     }
 }