From 58689969617ce65d537c855fda2a9dde038656ce Mon Sep 17 00:00:00 2001
From: Marc Ypes <c33ram@gmail.com>
Date: Tue, 13 Nov 2018 00:25:22 +0100
Subject: [PATCH] Add test for previous exceptions

---
 tests/Exception/OAuthServerExceptionTest.php | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/Exception/OAuthServerExceptionTest.php b/tests/Exception/OAuthServerExceptionTest.php
index 976362e3..201fb5dd 100644
--- a/tests/Exception/OAuthServerExceptionTest.php
+++ b/tests/Exception/OAuthServerExceptionTest.php
@@ -2,6 +2,7 @@
 
 namespace LeagueTests\Exception;
 
+use Exception;
 use League\OAuth2\Server\Exception\OAuthServerException;
 use PHPUnit\Framework\TestCase;
 
@@ -20,4 +21,19 @@ class OAuthServerExceptionTest extends TestCase
 
         $this->assertFalse($exceptionWithoutRedirect->hasRedirect());
     }
+
+    public function testHasPrevious()
+    {
+        $previous = new Exception('This is the previous');
+        $exceptionWithPrevious = OAuthServerException::accessDenied(null, null, $previous);
+
+        $this->assertSame('This is the previous', $exceptionWithPrevious->getPrevious()->getMessage());
+    }
+
+    public function testDoesNotHavePrevious()
+    {
+        $exceptionWithoutPrevious = OAuthServerException::accessDenied();
+
+        $this->assertNull($exceptionWithoutPrevious->getPrevious());
+    }
 }