diff --git a/tests/TestSession.php b/tests/TestSession.php
deleted file mode 100644
index a4518ad..0000000
--- a/tests/TestSession.php
+++ /dev/null
@@ -1,63 +0,0 @@
-<?php
-
-/**
- * Copyright (c) 2016, 2017 François Kooman <fkooman@tuxed.net>.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-namespace Mrpvision\Gluu\Tests;
-
-use Mrpvision\Gluu\Exception\SessionException;
-use Mrpvision\Gluu\SessionInterface;
-
-class TestSession implements SessionInterface
-{
-    /** @var array */
-    private $data = [];
-
-    /**
-     * Get value, delete key.
-     *
-     * @param string $key
-     *
-     * @return mixed
-     */
-    public function take($key)
-    {
-        if (!array_key_exists($key, $this->data)) {
-            throw new SessionException(sprintf('key "%s" not found in session', $key));
-        }
-        $value = $this->data[$key];
-        unset($this->data[$key]);
-
-        return $value;
-    }
-
-    /**
-     * Set key to value.
-     *
-     * @param string $key
-     * @param mixed  $value
-     */
-    public function set($key, $value)
-    {
-        $this->data[$key] = $value;
-    }
-}