From 63906454a78744bf3d70a38c899a2cb569d7c131 Mon Sep 17 00:00:00 2001
From: Dmitry Gozman <dgozman@gmail.com>
Date: Mon, 23 Mar 2020 14:45:21 -0700
Subject: [PATCH] fix(testrunner): attribute unhandle promise reject to a
 single worker (#1491)

When there is a single worker, we are almost sure the error originated in that worker. Attributing it helps with context by showing last run tests.
---
 utils/testrunner/TestRunner.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/testrunner/TestRunner.js b/utils/testrunner/TestRunner.js
index 8730a623b0..1e3515d4a5 100644
--- a/utils/testrunner/TestRunner.js
+++ b/utils/testrunner/TestRunner.js
@@ -411,7 +411,7 @@ class TestPass {
     if (error) {
       if (error.stack)
         await this._runner._sourceMapSupport.rewriteStackTraceWithSourceMaps(error);
-      this._result.addError(message, error);
+      this._result.addError(message, error, this._workers.length === 1 ? this._workers[0] : null);
     }
   }