Added a test class to make debugging easier

test/index.php

@@ -0,0 +1,84 @@
+<?php
+
+include_once('../src/oauth2server/Dbinterface.php');
+include_once('../src/oauth2server/Server.php');
+use \oauth2server;
+
+class db extends oauth2server\ServerDB {
+	
+	public function validateClient(
+        string $clientId,
+        string $clientSecret = null,
+        string $redirectUri = null
+    ){}
+
+    public function newSession(
+        string $clientId,
+        string $redirectUri,
+        $type = 'user',
+        string $typeId = null,
+        string $authCode = null,
+        string $accessToken = null,
+        $stage = 'request'
+    ){}
+
+    public function updateSession(
+        string $clientId,
+        $type = 'user',
+        string $typeId = null,
+        string $authCode = null,
+        string $accessToken = null,
+        string $stage
+    ){}
+
+    public function deleteSession(
+        string $clientId,
+        string $type,
+        string $typeId
+    ){}
+
+    public function validateAuthCode(
+        string $clientId,
+        string $redirectUri,
+        string $authCode
+    ){}
+
+    /**
+     * Has access token
+     * 
+     * Check if an access token exists for a user (or an application)
+     * 
+     * @access public
+     * @return bool|string Return FALSE is a token doesn't exist or return the 
+     * access token as a string
+     */
+    public function hasAccessToken(
+        string $typeId,
+        string $clientId
+    ){}
+
+    public function getAccessToken(int $sessionId){}
+
+    public function removeAuthCode(int $sessionId){}
+
+    public function setAccessToken(
+        int $sessionId,
+        string $accessToken
+    ){}
+
+    public function addSessionScope(
+        int $sessionId,
+        string $scope
+    ){}
+
+    public function getScope(string $scope){}
+
+    public function updateSessionScopeAccessToken(
+        int $sesstionId,
+        string $accessToken
+    ){}
+
+    public function accessTokenScopes(string $accessToken){}
+}
+
+$server = new oauth2server\Server();