Improve selectRouterState test

Author: ellbee

test/index.js

@@ -200,9 +200,11 @@ describe('syncReduxAndRouter', () => {
       notRouting: routeReducer
     }));
     const history = createHistory();
-    expect(
-      () => syncReduxAndRouter(history, store, state => state.notRouting)
-    ).toNotThrow();
+    store.dispatch(updatePath('/foo'));
+    expect(store.getState().notRouting).toEqual({
+      path: '/foo',
+      changeId: 2
+    });
   });
 
   it('returns unsubscribe to stop listening to history and store', () => {