Add simple tests

tests/test.html

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>QUnit Example</title>
+  <link rel="stylesheet" href="./assets/qunit.css">
+</head>
+<body>
+  <div id="qunit"></div>
+  <div id="qunit-fixture"></div>
+  <script src="./assets/qunit.js"></script>
+  <script src="../decrypt_bios.js"></script>
+  <script src="./tests.js"></script>
+</body>
+</html>