Changed authhandler to use array (#361)

Author: dragonmantank

src/Client/APIResource.php

@@ -33,7 +33,10 @@ class APIResource implements ClientAwareInterface
     use ClientAwareTrait;
     use LoggerTrait;
 
-    protected ?HandlerInterface $authHandler = null;
+    /**
+     * @var HandlerInterface[]
+     */
+    protected array $authHandler = [];
 
     /**
      * Base URL that we will hit. This can be overridden from the underlying
@@ -349,6 +352,9 @@ public function search(?FilterInterface $filter = null, string $uri = ''): Itera
      */
     public function setAuthHandler($handler): self
     {
+        if (!is_array($handler)) {
+            $handler = [$handler];
+        }
         $this->authHandler = $handler;
 
         return $this;

test/Client/APIResourceTest.php

@@ -14,6 +14,8 @@
 use VonageTest\VonageTestCase;
 use Vonage\Client;
 use Vonage\Client\APIResource;
+use Vonage\Client\Credentials\Handler\BasicHandler;
+use Vonage\Client\Credentials\Handler\SignatureBodyHandler;
 
 class APIResourceTest extends VonageTestCase
 {
@@ -42,4 +44,20 @@ public function testNotOverridingBaseURLReturnsBlank(): void
         $resource = new APIResource();
         $this->assertSame('', $resource->getBaseUrl());
     }
+
+    public function testCanSetMultipleAuthHandlers(): void
+    {
+        $resource = new APIResource();
+        $resource->setAuthHandler([new BasicHandler(), new SignatureBodyHandler()]);
+
+        $this->assertIsArray($resource->getAuthHandler());
+    }
+
+    public function testSingleAuthHanlderConvertedToArray(): void
+    {
+        $resource = new APIResource();
+        $resource->setAuthHandler(new BasicHandler());
+
+        $this->assertIsArray($resource->getAuthHandler());
+    }
 }