Add paper validation tests

app/models/paper.rb

@@ -5,8 +5,7 @@ class Paper < ActiveRecord::Base
   include Elasticsearch::Model
   include Elasticsearch::Model::Callbacks
 
-  validates_presence_of :body, :content, :name, :originator, :paper_type, :reference, :url
+  validates_presence_of :body, :content, :name , :originator, :paper_type, :reference, :url, :published_at
-  validates_presence_of :published_at, allow_nil: true
   validates :url, uniqueness: true
 
   settings index: { number_of_shards: 1 } do

test/models/paper_test.rb

@@ -0,0 +1,16 @@
+require 'test_helper'
+
+class PaperTest < ActiveSupport::TestCase
+
+  context "Validations" do
+    should validate_presence_of(:body)
+    should validate_presence_of(:content)
+    should validate_presence_of(:name)
+    should validate_presence_of(:originator)
+    should validate_presence_of(:paper_type)
+    should validate_presence_of(:reference)
+    should validate_presence_of(:url)
+    should validate_presence_of(:published_at)
+  end
+
+end

test/test_helper.rb

@@ -5,7 +5,7 @@ require 'capybara/rails'
 
 class ActiveSupport::TestCase
   # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
-  fixtures :all
+  # fixtures :all
 
   # Add more helper methods to be used by all tests here...
 end