From f714287c81eaf2f2b3453065d9569e46065152d6 Mon Sep 17 00:00:00 2001
From: Jake Scott <jscott@addthis.com>
Date: Tue, 22 Jan 2019 09:28:03 -0500
Subject: [PATCH] Adds test for updated `app.use` definition

---
 types/express/express-tests.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/types/express/express-tests.ts b/types/express/express-tests.ts
index 07bf2fc5c3..12d3b47676 100644
--- a/types/express/express-tests.ts
+++ b/types/express/express-tests.ts
@@ -137,6 +137,9 @@ namespace express_tests {
         req.next;
         res.req;
     });
+    
+    // Test mounting sub-apps
+    app.use('/sub-app', express());
 
     // Test on mount event
     app.on('mount', (parent) => true);