From 8421f2d30478c093f26020e7ff0b190b4e9f8dc0 Mon Sep 17 00:00:00 2001
From: Joel Einbinder <joeinbin@microsoft.com>
Date: Mon, 24 Feb 2020 16:30:19 -0800
Subject: [PATCH] message

---
 test/mouse.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/mouse.spec.js b/test/mouse.spec.js
index 3e8c7551d9..28256de345 100644
--- a/test/mouse.spec.js
+++ b/test/mouse.spec.js
@@ -156,7 +156,7 @@ module.exports.describe = function({testRunner, expect, FFOX, CHROMIUM, WEBKIT,
         await page.mouse.down();
         await page.hover('#target');
         await page.mouse.up();
-        expect(await page.$eval('#target', target => target.contains(document.querySelector('#source')))).toBe(true);
+        expect(await page.$eval('#target', target => target.contains(document.querySelector('#source')))).toBe(true, 'could not find source in target');
       })
     });
   });