clean up insecure_dor_spec

spec/vulnerabilities/insecure_dor_spec.rb

@@ -22,11 +22,13 @@ feature "insecure direct object reference" do
   end
 
   scenario "attack two\nTutorial: https://github.com/OWASP/railsgoat/wiki/A4-Insecure-Direct-Object-Reference" do
+    login(normal_user)
+
     expect(normal_user.id).not_to eq(another_user.id)
 
     visit "/users/#{another_user.id}/work_info"
 
-    expect(first("td").text).not_to include(another_user.name)
-    expect(first("td").text).to include(normal_user.name)
+    expect(first("td").text).not_to include(another_user.full_name)
+    expect(first("td").text).to include(normal_user.full_name)
   end
 end