Add tests for BasicAuthListener

test/Buzz/Test/Listener/BasicAuthListenerTest.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Buzz\Test\Listener;
+
+use Buzz\Listener\BasicAuthListener;
+use Buzz\Message;
+
+class BasicAuthListenerTest extends \PHPUnit_Framework_TestCase
+{
+    public function testBasicAuthHeader()
+    {
+        $request = new Message\Request();
+        $this->assertEmpty($request->getHeader('Authorization'));
+
+        $listener = new BasicAuthListener('foo', 'bar');
+        $listener->preSend($request);
+
+        $this->assertEquals('Basic '.base64_encode('foo:bar'), $request->getHeader('Authorization'));
+    }
+}