diff --git a/tests/test.gui.js b/tests/test.gui.js
new file mode 100644
index 0000000..326a05a
--- /dev/null
+++ b/tests/test.gui.js
@@ -0,0 +1,51 @@
+describe( 'Gui', function() {
+
+    it( 'exists', function() {
+
+        expect( Gui ).toBeDefined();
+
+    } );
+
+    it( 'has a ready callback', function() {
+
+        var ready = {
+            ready: function() {}
+        };
+
+        spyOn( ready, 'ready' );
+
+        runs( function() {
+            Gui.ready( ready.ready );
+        } );
+
+        waits( 100 );
+
+        runs( function() {
+            expect( ready.ready ).toHaveBeenCalled();
+        } );
+
+    } );
+
+    it( 'picks the right controller for the job', function() {
+
+        function expectController( controllerType, value ) {
+            expect( Gui.getController( value ).nodeName.toLowerCase() ).toBe( controllerType );
+        }
+
+        expectController( 'controller-number', 1234 );
+        expectController( 'controller-string', 'string value' );
+        expectController( 'controller-function', function(){} );
+        expectController( 'controller-boolean', true );
+
+        expectController( 'controller-color', '#00ff00' );
+        expectController( 'controller-color', '#aba' );
+
+        expectController( 'controller-color', 'rgba(255, 0, 255, 0.2)' );
+        expectController( 'controller-color', 'rgb(255, 0, 255)' );
+
+        expectController( 'controller-color', 'hsl(240, 100%, 50%)' );
+        expectController( 'controller-color', 'hsla(255, 100%, 40%, 0.5)' );
+
+    } );
+  
+} );
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