1 files changed, 21 insertions, 0 deletions
diff --git a/spec/ruby/core/hash/shared/each.rb b/spec/ruby/core/hash/shared/each.rb
index 04a26b5c45..b2483c8116 100644
--- a/spec/ruby/core/hash/shared/each.rb
+++ b/spec/ruby/core/hash/shared/each.rb
@@ -54,6 +54,27 @@ describe :hash_each, shared: true do
     end
   end
 
+  it "yields an Array of 2 elements when given a callable of arity 1" do
+    obj = Object.new
+    def obj.foo(key_value)
+      ScratchPad << key_value
+    end
+
+    ScratchPad.record([])
+    { "a" => 1 }.send(@method, &obj.method(:foo))
+    ScratchPad.recorded.should == [["a", 1]]
+  end
+
+  it "raises an error for a Hash when an arity enforcing callable of arity >2 is passed in" do
+    obj = Object.new
+    def obj.foo(key, value, extra)
+    end
+
+    -> {
+      { "a" => 1 }.send(@method, &obj.method(:foo))
+    }.should raise_error(ArgumentError)
+  end
+
   it "uses the same order as keys() and values()" do
     h = { a: 1, b: 2, c: 3, d: 5 }
     keys = []