diff --git a/web/src/js/__tests__/ducks/ui/indexSpec.js b/web/src/js/__tests__/ducks/ui/indexSpec.js
new file mode 100644
index 000000000..3c136bfff
--- /dev/null
+++ b/web/src/js/__tests__/ducks/ui/indexSpec.js
@@ -0,0 +1,9 @@
+import reduceUI from '../../../ducks/ui/index'
+
+describe('reduceUI in js/ducks/ui/index.js', () => {
+    it('should combine flow and header', () => {
+        let state = reduceUI(undefined, {})
+        expect(state.hasOwnProperty('flow')).toBeTruthy()
+        expect(state.hasOwnProperty('header')).toBeTruthy()
+    })
+})