Implements playlists/index action in JSON API

app/controllers/api/v0/playlists_controller.rb

@@ -0,0 +1,8 @@
+class Api::V0::PlaylistsController < ApplicationController
+  respond_to :json
+
+  def index
+    @playlists = Playlist.all
+    respond_with @playlists
+  end
+end

config/routes.rb

@@ -1,4 +1,10 @@
 Scube::Application.routes.draw do
+  namespace :api do
+    namespace :v0 do
+      resources :playlists, :only => [:index]
+    end
+  end
+
   resources :sounds, :only => [:show]
 
   resources :users, :only => [:new, :create]

spec/controllers/api/v0/playlists_spec.rb

@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe Api::V0::PlaylistsController do
+  before do
+    controller.current_user = Factory.create(:user)
+  end
+
+  describe 'GET index' do
+    before do
+      playlist_1 = Factory.create(:playlist, :name => 'Playlist 1')
+      playlist_2 = Factory.create(:playlist, :name => 'Playlist 2')
+    end
+
+    def do_get
+      get :index, :format => :json
+      JSON.parse(response.body)
+    end
+
+    it 'lists all playlists' do
+      do_get.should have(2).items
+    end
+
+    it 'lists playlists with their name' do
+      do_get.each { |t| t.keys.should include 'name' }
+    end
+  end
+end