https://git.ruby-lang.org/ruby.git/commit/?id=c851bced39

From c851bced390204d6624e58c47941f34d0858b352 Mon Sep 17 00:00:00 2001
From: Alexander Momchilov <alexander.momchilov@s...>
Date: Fri, 22 Jul 2022 15:49:05 -0400
Subject: [ruby/psych] Clarify tests about parsing aliases

https://github.com/ruby/psych/commit/0bc30cb4cb
---
 test/psych/test_safe_load.rb | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/test/psych/test_safe_load.rb b/test/psych/test_safe_load.rb
index b52d6048b3..e57dbcb2f5 100644
--- a/test/psych/test_safe_load.rb
+++ b/test/psych/test_safe_load.rb
@@ -19,18 +19,31 @@ module Psych https://github.com/ruby/ruby/blob/trunk/test/psych/test_safe_load.rb#L19
       end
     end
 
-    def test_no_recursion
-      x = []
-      x << x
+    def test_raises_when_alias_found_if_alias_parsing_not_enabled
+      yaml_with_aliases = <<~YAML
+        ---
+        a: &ABC
+          k1: v1
+          k2: v2
+        b: *ABC
+      YAML
+
       assert_raise(Psych::BadAlias) do
-        Psych.safe_load Psych.dump(x)
+        Psych.safe_load(yaml_with_aliases)
       end
     end
 
-    def test_explicit_recursion
-      x = []
-      x << x
-      assert_equal(x, Psych.safe_load(Psych.dump(x), permitted_classes: [], permitted_symbols: [], aliases: true))
+    def test_aliases_are_parsed_when_alias_parsing_is_enabled
+      yaml_with_aliases = <<~YAML
+        ---
+        a: &ABC
+          k1: v1
+          k2: v2
+        b: *ABC
+      YAML
+
+      result = Psych.safe_load(yaml_with_aliases, aliases: true)
+      assert_same result.fetch("a"), result.fetch("b")
     end
 
     def test_permitted_symbol
-- 
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