diff --git a/app/soapbox/reducers/__tests__/auth-test.js b/app/soapbox/reducers/__tests__/auth-test.js
new file mode 100644
index 000000000..1eeece858
--- /dev/null
+++ b/app/soapbox/reducers/__tests__/auth-test.js
@@ -0,0 +1,12 @@
+import reducer from '../auth';
+import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
+
+describe('auth reducer', () => {
+  it('should return the initial state', () => {
+    expect(reducer(undefined, {})).toEqual(ImmutableMap({
+      app: ImmutableMap(),
+      user: ImmutableMap(),
+      tokens: ImmutableList(),
+    }));
+  });
+});