Fix tests and fixtures

Author: sagikazarmark

spec/HttpClientDiscoverySpec.php

@@ -18,6 +18,6 @@ function it_is_a_class_discovery()
 
     function it_finds_an_http_adapter()
     {
-        $this->find()->shouldHaveType('Http\Adapter\HttpAdapter');
+        $this->find()->shouldImplement('Http\Client\HttpClient');
     }
 }

spec/bootstrap.php

@@ -2,11 +2,11 @@
 
 // Used for real return type check
 
-if (!interface_exists('Http\Adapter\HttpAdapter')) {
-    eval('namespace Http\Adapter; interface HttpAdapter {}');
+if (!interface_exists('Http\Client\HttpClient')) {
+    eval('namespace Http\Client; interface HttpClient {}');
 }
 
 if (!class_exists('Http\Adapter\Guzzle6HttpAdapter')) {
-    eval('namespace Http\Adapter; class Guzzle6HttpAdapter implements HttpAdapter {}');
+    eval('namespace Http\Adapter; class Guzzle6HttpAdapter implements \Http\Client\HttpClient {}');
 }