Shoulda RenderJson

Shoulda macros for making very basic assertions about JSON responses

Add this line to your application's Gemfile:

gem 'shoulda_render_json', group: :test

And then execute:

$ bundle

Or install it yourself as:

$ gem install shoulda_render_json

I'm going to presume you're already familiar with using Shoulda macros. The most basic assertion for render_json will be that your response's content-type is 'application/json' (Rails' default JSON content-type) and that there is a root-level node named "foo" in the JSON.

should render_json('foo')

Voilà! That's probably not too useful on its own though. Let's add some child node checks!

should render_json('foo', required: 'bar', forbidden: 'baz')

Predictably this adds two additional assertions to that base assertion. First, that the node for "foo" is required to have a child node named "bar". Second, that the node for "foo" is prohibited from having a child node named "baz". Both of these values can be arrays as well as strings as seen below.

should render_json('foo', required: %w{bar baz})

Sometimes, you may need to make assertions on Arrays inside JSON responses and not just Hash/Objects. I've got you covered there too.

should render_json('foo', type: Array)

If you need to make assertions on the members of that Array, you can use the same required and forbidden options but be aware these assertions will be expected to be true for every member of the Array. If you've got members that violate this, you'll probably be better off writing custom assertions anyhow.

That's it!

1. Test coverage. I've extracted this from one of my own test suites so there's no tests.

1. Fork it ( https://github.com/rsl/shoulda_render_json/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request