diff --git a/test/index.html b/test/index.html
index a20688bb..9fbb0834 100644
--- a/test/index.html
+++ b/test/index.html
@@ -26,6 +26,7 @@
 	<script type="text/javascript" src="tests/Point.js"></script>
 	<script type="text/javascript" src="tests/Size.js"></script>
 	<script type="text/javascript" src="tests/Rectangle.js"></script>
+	<script type="text/javascript" src="tests/Document.js"></script>
 	<script type="text/javascript" src="tests/Item.js"></script>
 	<script type="text/javascript" src="tests/Segment.js"></script>
 	<script type="text/javascript" src="tests/Path.js"></script>
diff --git a/test/tests/Document.js b/test/tests/Document.js
new file mode 100644
index 00000000..37265e8e
--- /dev/null
+++ b/test/tests/Document.js
@@ -0,0 +1,10 @@
+module('Document');
+
+test('activate()', function() {
+	var doc = new Doc();
+	var secondDoc = new Doc();
+	doc.activate();
+	var path = new Path();
+	equals(doc.activeLayer.children[0] == path, true);
+	equals(secondDoc.activeLayer.children.length == 0, true);
+});
\ No newline at end of file