Rspec test for ManagesVideoFiles module

gistfile1.rb

require 'spec_helper'

describe ManagesVideoFiles do
  
  let(:athlete) { create(:athlete) }
  let(:video) { create(:video, athlete_id: athlete.id) }
  let(:panda_screenshot_url) { "http://foo.com/image.ext" }
  let(:secure_panda_screenshot_url) { panda_screenshot_url.sub "http", "https" }
  let(:panda_encoding_url) { "http://hello.io" }
  let(:secure_panda_encoding_url) { panda_encoding_url.sub "http", "https" }
  
  describe "instance methods" do
    
    describe "#thumbnail_url" do
      
      context "when video has thumbail_url object property" do
        it "should return thumbnail_url from database" do
          url = "https://foo.com/image.ext"
          video.thumbnail_url = url
          video.save
          video.thumbnail_url.should eq url
        end
      end
      
      context "when panda_id is nil" do
        it "should return nil" do
          video.stub(:panda_id).with(nil)
          video.stub(:panda_video).and_return nil
          video.thumbnail_url.should be_nil
        end
      end
      
      context "when panda can find video" do
        it "should return encoding object with screenshots" do
          video.stub(:panda_video).and_return double(encodings: [double(panda_encoding_object(100, :success))])
          video.get_encoding.stub(:screenshots).and_return [ panda_screenshot_url ]
          video.thumbnail_url
          video.thumbnail_url.should eq secure_panda_screenshot_url
        end
      end
      
    end
    
    describe "#mp4_url" do
      
      context "when encoding is available from panda" do
        it "should set mp4 url to encoding from panda object" do
          video.stub(:panda_video).and_return double(encodings: [double(panda_encoding_object(100, :success))])
          video.mp4_url
          video.mp4_video_url.should eq secure_panda_encoding_url
        end
      end
      
      context "when encoding is not available from panda" do
        it "should return nil" do
          video.stub(:panda_id).with(nil)
          video.stub(:panda_video).and_return nil
          video.mp4_url.should be_nil
        end
      end
      
      context "when encoding is available from panda but progress is less than 100" do
        it "should return nil" do
          video.stub(:panda_video).and_return double(encodings: [double(panda_encoding_object(50, :success))])
          video.mp4_video_url.should be_nil
        end
      end
      
      context "when encoding is available from panda but status has failed" do
        it "should return nil" do
          video.stub(:panda_video).and_return double(encodings: [double(panda_encoding_object(100, :fail))])
          video.mp4_video_url.should be_nil
        end
      end
      
    end
    
    describe "#get_encoding" do
      
      context "when encoding is unavailable from panda" do
        it "should return nil" do
          video.stub(:panda_video).and_return nil
          video.get_encoding.should be_nil
        end
      end
      
      context "when encoding is available from panda" do
        it "should return panda object" do
          video.stub(:panda_video).and_return double(encodings: [double(panda_encoding_object(100, :success))])
          video.get_encoding.should eq video.panda_video.encodings.first
        end
      end
      
    end
    
  end
  
end

def panda_encoding_object progress, status
  { url: panda_encoding_url, encoding_progress: progress, status: status.to_s }
end