Add live tests to confirm that iterating over help center objects now…

… works

tests/Zendesk/API/LiveTests/HelpCenterTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Zendesk\API\LiveTests;
+
+class HelpCenterTest extends BasicTest
+{
+    /**
+     * @throws \Zendesk\API\Exceptions\MissingParametersException
+     */
+    public function testIterateOverHelpCenterArticles()
+    {
+        $iterator = $this->client->helpCenter->articles()->iterator();
+
+        $actual = iterator_to_array($iterator);
+
+        // Generally, there should be at least one article in the help center, even if these are just the default articles.
+        $this->assertTrue(is_array($actual) && count($actual) > 0, 'Should return a non-empty array of articles.');
+    }
+
+    public function testIterateOverHelpCenterSections()
+    {
+        $iterator = $this->client->helpCenter->sections()->iterator();
+
+        $actual = iterator_to_array($iterator);
+
+        // Generally, there should be at least one section in the help center, even if these are just the default sections.
+        $this->assertTrue(is_array($actual) && count($actual) > 0, 'Should return a non-empty array of sections.');
+    }
+
+    public function testIterateOverHelpCenterCategories()
+    {
+        $iterator = $this->client->helpCenter->categories()->iterator();
+
+        $actual = iterator_to_array($iterator);
+
+        // Generally, there should be at least one category in the help center, even if these are just the default categories.
+        $this->assertTrue(is_array($actual) && count($actual) > 0, 'Should return a non-empty array of categories.');
+    }
+}