From 9751b54971c5ad3bab29ce8af6ec50695aa43251 Mon Sep 17 00:00:00 2001
From: Stan Lo <stan.lo@shopify.com>
Date: Tue, 15 Nov 2022 17:26:47 +0000
Subject: [PATCH] [ruby/irb] Improve testing infra
 (https://github.com/ruby/irb/pull/442)

* Add test_in_isolation task to run tests in isolation

This simulates how tests are run in Ruby CI and can detect some issues
before they're merged and break Ruby CI later.

* Run test_in_isolation task on CI

* Fix TestRaiseNoBacktraceException's setup

https://github.com/ruby/irb/commit/51f23c58b0
---
 test/irb/test_raise_no_backtrace_exception.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/irb/test_raise_no_backtrace_exception.rb b/test/irb/test_raise_no_backtrace_exception.rb
index ba8e89c59f..9565419cdd 100644
--- a/test/irb/test_raise_no_backtrace_exception.rb
+++ b/test/irb/test_raise_no_backtrace_exception.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: false
+require "tmpdir"
 
 require_relative "helper"