1 files changed, 87 insertions, 0 deletions
diff --git a/spec/ruby/core/module/used_refinements_spec.rb b/spec/ruby/core/module/used_refinements_spec.rb
new file mode 100644
index 0000000000..c16cab0e3c
--- /dev/null
+++ b/spec/ruby/core/module/used_refinements_spec.rb
@@ -0,0 +1,87 @@
+require_relative '../../spec_helper'
+
+describe "Module.used_refinements" do
+  ruby_version_is "3.2" do
+    it "returns list of all refinements imported in the current scope" do
+      refinement_int = nil
+      refinement_str = nil
+      ScratchPad.record []
+
+      m1 = Module.new do
+        refine Integer do
+          refinement_int = self
+        end
+      end
+
+      m2 = Module.new do
+        refine String do
+          refinement_str = self
+        end
+      end
+
+      Module.new do
+        using m1
+        using m2
+
+        Module.used_refinements.each { |r| ScratchPad << r }
+      end
+
+      ScratchPad.recorded.sort_by(&:object_id).should == [refinement_int, refinement_str].sort_by(&:object_id)
+    end
+
+    it "returns empty array if does not have any refinements imported" do
+      used_refinements = nil
+
+      Module.new do
+        used_refinements = Module.used_refinements
+      end
+
+      used_refinements.should == []
+    end
+
+    it "ignores refinements imported in a module that is included into the current one" do
+      used_refinements = nil
+
+      m1 = Module.new do
+        refine Integer do
+          nil
+        end
+      end
+
+      m2 = Module.new do
+        using m1
+      end
+
+      Module.new do
+        include m2
+
+        used_refinements = Module.used_refinements
+      end
+
+      used_refinements.should == []
+    end
+
+    it "returns refinements even not defined directly in a module refinements are imported from" do
+      used_refinements = nil
+      ScratchPad.record []
+
+      m1 = Module.new do
+        refine Integer do
+          ScratchPad << self
+        end
+      end
+
+      m2 = Module.new do
+        include m1
+      end
+
+      Module.new do
+        using m2
+
+        used_refinements = Module.used_refinements
+      end
+
+      used_refinements.should == ScratchPad.recorded
+    end
+  end
+end