1 files changed, 16 insertions, 2 deletions
diff --git a/lib/gitlab/ci/config/node/validator.rb b/lib/gitlab/ci/config/node/validator.rb
index 02edc9219c3..758a6cf4356 100644
--- a/lib/gitlab/ci/config/node/validator.rb
+++ b/lib/gitlab/ci/config/node/validator.rb
@@ -11,15 +11,29 @@ module Gitlab
             @node = node
           end
 
-          def full_errors
+          def messages
             errors.full_messages.map do |error|
-              "#{@node.key} #{error}".humanize
+              "#{location} #{error}".downcase
             end
           end
 
           def self.name
             'Validator'
           end
+
+          def unknown_keys
+            return [] unless config.is_a?(Hash)
+
+            config.keys - @node.class.nodes.keys
+          end
+
+          private
+
+          def location
+            predecessors = ancestors.map(&:key).compact
+            current = key || @node.class.name.demodulize.underscore
+            predecessors.append(current).join(':')
+          end
         end
       end
     end