test nested hash with float

[#652 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

activesupport/test/json/encoding_test.rb

@@ -100,6 +100,18 @@ def test_time_to_json_includes_local_offset
     ActiveSupport.use_standard_json_time_format = false
   end
 
+  def test_nested_hash_with_float
+    assert_nothing_raised do
+      hash = {
+        "CHI" => {
+          :dislay_name => "chicago",
+          :latitude => 123.234
+        }
+      }
+      result = hash.to_json
+    end
+  end
+
   protected
 
     def object_keys(json_object)