Convert spec to test

#700

spec/models/epp_session.rb

@@ -1,21 +0,0 @@
-require 'rails_helper'
-
-describe EppSession do
-  let(:epp_session) { create(:epp_session) }
-
-  it 'has marshalled data' do
-    expect(epp_session.read_attribute(:data)).to_not be_blank
-    expect(epp_session.read_attribute(:data).class).to eq(String)
-    expect(epp_session.data.class).to eq(Hash)
-  end
-
-  it 'stores data' do
-    expect(epp_session[:api_user_id]).to eq(1)
-
-    epp_session[:api_user_id] = 3
-    expect(epp_session[:api_user_id]).to eq(3)
-
-    epp_session =  EppSession.find_by(session_id: 'test')
-    expect(epp_session[:api_user_id]).to eq(3)
-  end
-end

test/models/epp_session_test.rb

@@ -0,0 +1,13 @@
+require 'test_helper'
+
+class EppSessionTest < ActiveSupport::TestCase
+  def test_api_user_id_serialization
+    epp_session = EppSession.new
+    epp_session.registrar = registrars(:bestnames)
+    epp_session[:api_user_id] = ActiveRecord::Fixtures.identify(:api_bestnames)
+    epp_session.save!
+    epp_session.reload
+
+    assert_equal ActiveRecord::Fixtures.identify(:api_bestnames), epp_session[:api_user_id]
+  end
+end