Compare json response with array of hashes

Question

When I get an array of objects in JSON response, they might be represent in a different order.

Sometimes I get this

JSON.parse(response.body) # => [{"a" => "b"}, {"c" => "d"}]

or this

JSON.parse(response.body) # => [{"c" => "d"}, {"a" => "b"}]

But for me both results are correct. What is the easiest way to test which objects I have in response regardless of their order?

Answer 1

You can convert it into a set-like structure using a hash.

first_response.inject({}){|s, h| s[h] = true; s}

will be the same as

second_response.inject({}){|s, h| s[h] = true; s}

Answer 2

连同其其他有用的功能， json规范 gem还具有be_json_eql匹配器，该匹配器的工作无需考虑顺序。