Implements playlists/index action in JSON API

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