tests: do not lose exceptions on quit timeouts

We should see the reason for test failures.

1 files changed, 5 insertions, 0 deletions

diff --git a/test/server_helper.rb b/test/server_helper.rb
index 812e91b..89276b8 100644
--- a/test/server_helper.rb
+++ b/test/server_helper.rb
@@ -29,10 +29,15 @@ module ServerHelper
 
   def quit_wait(pid)
     pid or return
+    err = $!
     Process.kill(:QUIT, pid)
     _, status = Timeout.timeout(10) { Process.waitpid2(pid) }
     assert status.success?, status.inspect
   rescue Timeout::Error
+    begin
+      warn "#{err.message} (#{err.class})"
+      err.backtrace.each { |l| warn l }
+    end
     if RUBY_PLATFORM =~ /linux/
       system("lsof -p #{pid}")
       warn "#{pid} failed to die, waiting for user to inspect"