From 18cc663aef7a8073652a5979d172109e08e2497a Mon Sep 17 00:00:00 2001
From: Jean Boussier <jean.boussier@gmail.com>
Date: Fri, 18 Oct 2024 15:48:00 +0200
Subject: [PATCH] [ruby/json] Add test coverage for JSON.load with a Proc

Fix: https://github.com/ruby/json/issues/438

https://github.com/ruby/json/commit/9dd89eaac8
---
 test/json/json_common_interface_test.rb | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/test/json/json_common_interface_test.rb b/test/json/json_common_interface_test.rb
index f604d402f0..045e72e020 100644
--- a/test/json/json_common_interface_test.rb
+++ b/test/json/json_common_interface_test.rb
@@ -107,6 +107,25 @@ class JSONCommonInterfaceTest < Test::Unit::TestCase
     tempfile.close!
   end
 
+  def test_load_with_proc
+    visited = []
+    JSON.load('{"foo": [1, 2, 3], "bar": {"baz": "plop"}}', proc { |o| visited << JSON.dump(o) })
+
+    expected = [
+      '"foo"',
+      '1',
+      '2',
+      '3',
+      '[1,2,3]',
+      '"bar"',
+      '"baz"',
+      '"plop"',
+      '{"baz":"plop"}',
+      '{"foo":[1,2,3],"bar":{"baz":"plop"}}',
+    ]
+    assert_equal expected, visited
+  end
+
   def test_load_with_options
     json  = '{ "foo": NaN }'
     assert JSON.load(json, nil, :allow_nan => true)['foo'].nan?