From adbc87857e6a322db59bc3a7afccefedfdb4e6d3 Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Tue, 19 Feb 2019 13:33:34 +0800
Subject: [PATCH] DEV: Fix randomly failing test.

Even if a thread is alive in the loop check, it may be dead by the
time `Thread#wakeup` is called on it.
---
 lib/sidekiq/pausable.rb | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/sidekiq/pausable.rb b/lib/sidekiq/pausable.rb
index 8007a354593..57fa22123f5 100644
--- a/lib/sidekiq/pausable.rb
+++ b/lib/sidekiq/pausable.rb
@@ -61,7 +61,14 @@ class SidekiqPauser
     if t = @extend_lease_thread
       @extend_lease_thread = nil
       while t.alive?
-        t.wakeup
+        begin
+          t.wakeup
+        rescue ThreadError => e
+          unless e.message =~ /killed thread/
+            raise e
+          end
+        end
+
         sleep 0
       end
     end