test: added test for Gravatar class

phpmyfaq/src/phpMyFAQ/Services/Gravatar.php

@@ -2,6 +2,7 @@
 
 /**
  * Service class for Gravatar support.
+ *
  * This Source Code Form is subject to the terms of the Mozilla Public License,
  * v. 2.0. If a copy of the MPL was not distributed with this file, You can
  * obtain one at https://mozilla.org/MPL/2.0/.

tests/phpMyFAQ/Services/GravatarTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace phpMyFAQ\Services;
+
+use PHPUnit\Framework\TestCase;
+
+class GravatarTest extends TestCase
+{
+    public function testGetImage(): void
+    {
+        // Create a Gravatar object
+        $gravatar = new Gravatar();
+
+        // Test case 1: Test default parameters
+        $email = 'test@example.com';
+        $expectedResult1 = '<img src="https://secure.gravatar.com/avatar/55502f40dc8b7c769880b10874abc9d0" class="" alt="Gravatar">';
+        $result1 = $gravatar->getImage($email);
+        $this->assertEquals($expectedResult1, $result1);
+
+        // Test case 2: Test with custom parameters
+        $params = [
+            'size' => 100,
+            'default' => 'identicon',
+            'rating' => 'pg',
+            'force_default' => true,
+            'class' => 'avatar-img'
+        ];
+        $expectedResult2 = '<img src="https://secure.gravatar.com/avatar/55502f40dc8b7c769880b10874abc9d0?default=identicon&amp;size=100&amp;rating=pg&amp;forcedefault=y" class="avatar-img" alt="Gravatar">';
+        $result2 = $gravatar->getImage($email, $params);
+        $this->assertEquals($expectedResult2, $result2);
+
+        // Test case 3: Test with only class parameter
+        $params = [
+            'class' => 'rounded-img'
+        ];
+        $expectedResult3 = '<img src="https://secure.gravatar.com/avatar/55502f40dc8b7c769880b10874abc9d0" class="rounded-img" alt="Gravatar">';
+        $result3 = $gravatar->getImage($email, $params);
+        $this->assertEquals($expectedResult3, $result3);
+    }
+}