LoadError: cannot load such file -- [{ 'key':'value' }]

[halissonvit]

I'm trying to use json_spec with cucumber, but using the step:

  Then the JSON should be:
  """
  {
    'key':'value'
  }
  """

The error is in the helpers.rb file, in the method:

  def multi_json_load(json)
    MultiJson.respond_to?(:load) ? MultiJson.load(json) : MultiJson.decode(json)
  end

Using just MultiJson.decode(json) works fine.

Sorry for my bad english x;

[halissonvit]

I'm using Ruby 1.9.3 and Rails 3.2

[laserlemon]

Thanks for the report, Halisson. What version of MultiJson are you using?

[halissonvit]

gem list multi_json * LOCAL GEMS *

  multi_json (1.3.2, 1.2.0)

[laserlemon]

Hmm, could you please test under each version in isolation?

[laserlemon]

If you have a Gemfile.lock, could you please throw that into a Gist and link to it here?

[sferik]

It's best not to use MultiJson.respond_to?(:load), since Kernel (which defines a load method) gets mixed in to Object. I'd recommend using MultiJson.adapter as a proxy to detect MultiJson.load, since those two methods were added at the same time. See https://github.com/rails/rails/pull/5896/files as an example.

[laserlemon]

Thanks @sferik. @halissonvit, I can't reproduce the problem locally on either version of multi_json. Please provide your Gemfile.lock when you're able and maybe I can track this down. I'd like to confirm that Erik's suggestion really does solve your problem. Thanks.

[halissonvit]

My Gemfile.lock https://gist.github.com/2554748

Thank's for the fast response

[sferik]

There's no longer a need to feature-detect in the latest version of MultiJson (1.3.4). decode is an alias of load that no longer prints deprecation warnings.

[laserlemon]

New version released, moving back to decode until the next major version of multi_json ships.