test_worker_processes_mgmt_shutdown: wait for children to die v0.9.0

This avoids a race condition where a child dies after the parent
is reaped by us.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/cmogstored-cfg.rb b/test/cmogstored-cfg.rb
index 369779e..aee4187 100644
--- a/test/cmogstored-cfg.rb
+++ b/test/cmogstored-cfg.rb
@@ -370,6 +370,14 @@ class TestCmogstoredConfig < Test::Unit::TestCase
     _, status = Process.waitpid2(@pid)
     assert status.success?, status.inspect
     pids.each do |pid|
+      100.times do
+        begin
+          Process.kill(0, pid)
+          sleep 0.1
+        rescue Errno::ESRCH
+          break
+        end
+      end
       assert_raises(Errno::ESRCH) { Process.kill(0, pid) }
     end
   end