Fix case with headless policies which wasn't intruded

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    grabli (0.1.0)
+    grabli (0.2.0)
       pundit (> 0)
 
 GEM

lib/grabli.rb

@@ -40,7 +40,7 @@ def collect(user, subject)
         isubject = subject.is_a?(Symbol) ? Intruder.new(false) : subject
         policy = policy_class(subject).new(user, isubject)
 
-        collection << permission if allowed? policy, permission
+        collection << permission if allowed?(policy, permission)
       end
   end
 
@@ -58,7 +58,9 @@ def collect(user, subject)
   #
   def allowed?(policy, permission)
     result = policy.public_send(permission)
-    return !policy.record.intruded if policy.record.is_a?(Intruder)
+
+    return false if policy.record.is_a?(Intruder) && policy.record.intruded
+
     result
   end
 

spec/grabli_spec.rb

@@ -26,6 +26,10 @@ def update?
     manage_occupied? || current_user.admin
   end
 
+  def destroy?
+    false
+  end
+
   def permitted_attributes
     %i[foo]
   end