From 03090e2e72f3308571db9c9b76b4126fc271d6ec Mon Sep 17 00:00:00 2001
From: Earlopain <14981592+Earlopain@users.noreply.github.com>
Date: Sun, 1 Feb 2026 20:36:13 +0100
Subject: [ruby/prism] Change `bin/prism errors` to take source and print
 errors

This is more akin to how all the other ones work.
Instead I added most of this to the errors test like focusing
a few specifically and creating new expectations.

https://github.com/ruby/prism/commit/b21922b0a1
---
 test/prism/errors_test.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/prism/errors_test.rb b/test/prism/errors_test.rb
index cbe8b06ad6..b30a0f304d 100644
--- a/test/prism/errors_test.rb
+++ b/test/prism/errors_test.rb
@@ -7,7 +7,7 @@ require_relative "test_helper"
 module Prism
   class ErrorsTest < TestCase
     base = File.expand_path("errors", __dir__)
-    filepaths = Dir["**/*.txt", base: base]
+    filepaths = Dir[ENV.fetch("FOCUS", "**/*.txt"), base: base]
 
     filepaths.each do |filepath|
       ruby_versions_for(filepath).each do |version|
@@ -100,6 +100,10 @@ module Prism
       refute_empty errors, "Expected errors in #{filepath}"
 
       actual = result.errors_format
+      if expected != actual && ENV["UPDATE_SNAPSHOTS"]
+        File.write(filepath, actual)
+      end
+
       assert_equal expected, actual, "Expected errors to match for #{filepath}"
     end
   end
-- 
cgit v1.2.3