[ruby/psych] Don't hardcode expected alias names

https://github.com/ruby/psych/commit/b9ab19094f

1 files changed, 12 insertions, 6 deletions

diff --git a/test/psych/test_hash.rb b/test/psych/test_hash.rb
index 43e4b8bf14..0555f6e034 100644
--- a/test/psych/test_hash.rb
+++ b/test/psych/test_hash.rb
@@ -112,16 +112,22 @@ eoyml
       assert_equal({"foo"=>{"hello"=>"world"}, "bar"=>{"hello"=>"world"}}, hash)
     end
 
-    def test_recursive_hash_uses_alias
+    def test_recursive_hash
       h = { }
       h["recursive_reference"] = h
 
-      expected = <<~eoyaml
-        --- &1
-        recursive_reference: *1
-      eoyaml
+      loaded = Psych.load(Psych.dump(h), aliases: true)
+
+      assert_same loaded, loaded.fetch("recursive_reference")
+    end
+
+    def test_recursive_hash_uses_alias
+      h = { }
+      h["recursive_reference"] = h
 
-      assert_equal(expected, Psych.dump(h))
+      assert_raise(BadAlias) do
+        Psych.load(Psych.dump(h), aliases: false)
+      end
     end
 
     def test_key_deduplication