support for twitter downloads

test/unit/sources/twitter_test.rb

@@ -0,0 +1,36 @@
+require 'test_helper'
+
+module Sources
+  class TwitterTest < ActiveSupport::TestCase
+    context "The source site for twitter" do
+      setup do
+        VCR.use_cassette("source-twitter-unit-test-1", :record => :none) do
+          @site_1 = Sources::Site.new("https://mobile.twitter.com/nounproject/status/540944400767922176")
+          @site_1.get
+        end
+      end
+
+      should "get the profile" do
+        assert_equal("https://twitter.com/nounproject", @site_1.profile_url)
+      end
+
+      should "get the artist name" do
+        assert_equal("The Noun Project", @site_1.artist_name)
+      end
+
+      should "get the image url" do
+        assert_equal("https://pbs.twimg.com/media/B4HSEP5CUAA4xyu.png:large", @site_1.image_url)
+      end
+
+      should "get the tags" do
+        assert_equal([], @site_1.tags)
+      end
+
+      should "convert a page into a json representation" do
+        assert_nothing_raised do
+          @site_1.to_json
+        end
+      end
+    end
+  end
+end