1 files changed, 12 insertions, 5 deletions
diff --git a/spec/ruby/core/struct/new_spec.rb b/spec/ruby/core/struct/new_spec.rb
index fdbf8c2c91..7b4a4f7980 100644
--- a/spec/ruby/core/struct/new_spec.rb
+++ b/spec/ruby/core/struct/new_spec.rb
@@ -60,14 +60,21 @@ describe "Struct.new" do
     -> { Struct.new(:animal, nil)                  }.should raise_error(TypeError)
     -> { Struct.new(:animal, true)                 }.should raise_error(TypeError)
     -> { Struct.new(:animal, ['chris', 'evan'])    }.should raise_error(TypeError)
-    ruby_version_is "3.2" do
-      -> { Struct.new(:animal, { name: 'chris' }) }.should raise_error(TypeError)
-    end
   end
 
   ruby_version_is ""..."3.2" do
-    it "raises a ArgumentError if passed a Hash with an unknown key" do
-      -> { Struct.new(:animal, { name: 'chris' }) }.should raise_error(ArgumentError)
+    it "raises a TypeError or ArgumentError if passed a Hash with an unknown key" do
+      # CRuby < 3.2 raises ArgumentError: unknown keyword: :name, but that seems a bug:
+      # https://bugs.ruby-lang.org/issues/18632
+      -> { Struct.new(:animal, { name: 'chris' }) }.should raise_error(StandardError) { |e|
+        [ArgumentError, TypeError].should.include?(e.class)
+      }
+    end
+  end
+
+  ruby_version_is "3.2" do
+    it "raises a TypeError if passed a Hash with an unknown key" do
+      -> { Struct.new(:animal, { name: 'chris' }) }.should raise_error(TypeError)
     end
   end