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system/Test/Mock/MockSession.php

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+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Test\Mock;
+
+use CodeIgniter\Cookie\Cookie;
+use CodeIgniter\Session\Session;
+
+/**
+ * Class MockSession
+ *
+ * Provides a safe way to test the Session class itself,
+ * that doesn't interact with the session or cookies at all.
+ */
+class MockSession extends Session
+{
+    /**
+     * Holds our "cookie" data.
+     *
+     * @var Cookie[]
+     */
+    public $cookies = [];
+
+    public $didRegenerate = false;
+
+    /**
+     * Sets the driver as the session handler in PHP.
+     * Extracted for easier testing.
+     */
+    protected function setSaveHandler()
+    {
+        // session_set_save_handler($this->driver, true);
+    }
+
+    /**
+     * Starts the session.
+     * Extracted for testing reasons.
+     */
+    protected function startSession()
+    {
+        // session_start();
+        $this->setCookie();
+    }
+
+    /**
+     * Takes care of setting the cookie on the client side.
+     * Extracted for testing reasons.
+     */
+    protected function setCookie()
+    {
+        $expiration   = $this->sessionExpiration === 0 ? 0 : time() + $this->sessionExpiration;
+        $this->cookie = $this->cookie->withValue(session_id())->withExpires($expiration);
+
+        $this->cookies[] = $this->cookie;
+    }
+
+    public function regenerate(bool $destroy = false)
+    {
+        $this->didRegenerate              = true;
+        $_SESSION['__ci_last_regenerate'] = time();
+    }
+}