Provide test case for non domain exception being handled

Author: sagikazarmark

tests/Guzzle6PromiseTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Http\Adapter\Tests;
+
+use GuzzleHttp\Exception as GuzzleExceptions;
+use GuzzleHttp\Promise\RejectedPromise;
+use Http\Adapter\Guzzle6Promise;
+
+/**
+ * @author Márk Sági-Kazár <[email protected]>
+ */
+class Guzzle6PromiseTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \Exception
+     */
+    public function testNonDomainExceptionIsHandled()
+    {
+        $request = $this->prophesize('Psr\Http\Message\RequestInterface');
+        $promise = new RejectedPromise(new \Exception());
+
+        $guzzlePromise = new Guzzle6Promise($promise, $request->reveal());
+
+        $guzzlePromise->wait();
+    }
+}