Audit channel link on video description (youtube association)

CHANGELOG.md

@@ -6,6 +6,10 @@ For more information about changelogs, check
 [Keep a Changelog](http://keepachangelog.com) and
 [Vandamme](http://tech-angels.github.io/vandamme).
 
+## 0.1.3  - 2016.02.16
+
+* [FEATURE] Add `has_link_to_own_channel?`
+
 ## 0.1.2  - 2016.02.11
 
 * [FEATURE] Add `has_subscribe_annotations?`

README.md

@@ -31,4 +31,6 @@ Yt::Audit.has_brand_anchoring?('rF711XAtrVg', 'Budweiser')
 # => true
 Yt::Audit.has_subscribe_annotations?('rF711XAtrVg')
 # => false
+Yt::Audit.has_link_to_own_channel?('rF711XAtrVg')
+# => false
 ```

lib/yt/audit.rb

@@ -29,5 +29,15 @@ def self.has_subscribe_annotations?(video_id)
         annotation.link && annotation.link[:type] == :subscribe
       end
     end
+
+    # Audit youtube association of a video
+    # @param [String] video_id the video to audit.
+    # @return [Boolean] if the video description has link to its own channel.
+    def self.has_link_to_own_channel?(video_id)
+      video = Yt::Video.new(id: video_id)
+      video.description.split(' ')
+           .select {|word| Yt::URL.new(word).kind == :channel }
+           .any? {|link| Yt::Channel.new(url: link).id == video.channel_id }
+    end
   end
 end

lib/yt/audit/version.rb

@@ -1,5 +1,5 @@
 module Yt
   module Audit
-    VERSION = "0.1.2"
+    VERSION = "0.1.3"
   end
 end

test/yt/audit_test.rb

@@ -34,4 +34,12 @@ def test_has_subscribe_annotations
   def test_does_not_have_subscribe_annotations
     assert_equal false, Yt::Audit.has_subscribe_annotations?(@bad_video_id)
   end
+
+  def test_has_youtube_association
+    assert_equal true, Yt::Audit.has_link_to_own_channel?(@good_video_id)
+  end
+
+  def test_does_not_have_youtube_association
+    assert_equal false, Yt::Audit.has_link_to_own_channel?(@bad_video_id)
+  end
 end