Simple use of capybara-json

api_posts_integration_test.rb

require "test_helper"

describe "Posts APIJSon" do
  describe Post do
    it "returns list of posts in json format" do
      10.times {|i| Post.create!(:subject => "Post #{i}", :body => "...", :user => User.new)}
      expected_count = Post.all.size
      get posts_path(:format => :json)
      body.first["id"].must_equal 1
      body.size.must_equal expected_count
    end
  end
end