Provide test to validate a valid email address

tests/Api/EmailValidationTest.php

@@ -9,7 +9,9 @@
 
 namespace Mailgun\Tests\Api;
 
+use GuzzleHttp\Psr7\Response;
 use Mailgun\Api\EmailValidation;
+use Mailgun\Hydrator\ModelHydrator;
 
 /**
  * @author David Garcia <me@davidgarcia.cat>
@@ -20,4 +22,33 @@ class EmailValidationTest extends TestCase
     {
         return EmailValidation::class;
     }
+
+    public function testRFCValidation()
+    {
+    }
+
+    public function testDNSCheckValidation()
+    {
+    }
+
+    public function testSpoofCheckValidation()
+    {
+    }
+
+    public function testValidEmail()
+    {
+        $params = [
+            'address' => 'me@davidgarcia.cat',
+            'mailbox_verification' => true,
+        ];
+
+        $api = $this->getApiMock();
+
+        $api->expects($this->once())
+            ->method('httpGet')
+            ->with('/address/private/validate', $params)
+            ->willReturn(new Response());
+
+        $api->validate($params['address'], $params['mailbox_verification']);
+    }
 }