Added filters support for stub

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Added `Recurly_AccountAcquisition` [#259](https://github.com/recurly/recurly-client-php/pull/259)
 * Added support for automated exports [#260](https://github.com/recurly/recurly-client-php/pull/260)
 * Added support for shipping addresses [#269](https://github.com/recurly/recurly-client-php/pull/269)
+* Added filters to `Recurly_Stub` allowing `$account->invoices->get(array('state' => 'past_due'))` (thanks to [developer-devPHP](https://github.com/developer-devPHP)) [#270](https://github.com/recurly/recurly-client-php/pull/270)
 
 ## Version 2.6.0 (August 9th, 2016)
 

Tests/Recurly/Recurly_Stub_Test.php

@@ -0,0 +1,35 @@
+<?php
+
+class Recurly_StubTest extends Recurly_TestCase {
+
+  public function testConstructor() {
+    $href = 'http://example.com/';
+    $stub = new Recurly_Stub('foo', $href, $this->client);
+
+    $this->assertEquals($href, $stub->getHref());
+  }
+
+  public function testGet() {
+    $url = 'https://api.recurly.com/v2/accounts/abcdef1234567890/invoices';
+    $this->client->addResponse('GET', $url, 'invoices/index-200.xml');
+
+    $stub = new Recurly_Stub('foo', $url, $this->client);
+    $obj = $stub->get();
+
+    $this->assertInstanceOf('Recurly_InvoiceList', $obj);
+    $this->assertEquals($url, $obj->getHref());
+  }
+
+  public function testGetParams() {
+    $base_url = 'https://api.recurly.com/v2/accounts/abcdef1234567890/invoices';
+    $filtered_url = "{$base_url}?state=open";
+    $this->client->addResponse('GET', $filtered_url, 'invoices/index-200.xml');
+
+    $stub = new Recurly_Stub('foo', $base_url, $this->client);
+    $obj = $stub->get(array('state' => 'open'));
+
+    $this->assertInstanceOf('Recurly_InvoiceList', $obj);
+    $this->assertEquals($filtered_url, $obj->getHref());
+  }
+
+}

lib/recurly/stub.php

@@ -19,12 +19,13 @@ function __construct($objectType, $href, $client = null)
   /**
    * Retrieve the stubbed resource.
    */
-  function get() {
-    $stub = self::_get($this->_href, $this->_client);
-    if ($this->_href && !$stub->getHref()) {
-      $stub->setHref($this->_href);
+  function get($params = null) {
+    $uri = self::_uriWithParams($this->_href, $params);
+    $object = self::_get($uri, $this->_client);
+    if ($this->_href && !$object->getHref()) {
+      $object->setHref($this->_href);
     }
-    return $stub;
+    return $object;
   }
 
   public function __toString()