feat: fix tests

app/models/form/sales/pages/housing_benefits.rb

@@ -2,14 +2,6 @@ class Form::Sales::Pages::HousingBenefits < ::Form::Page
   def initialize(id, hsh, subsection, joint_purchase:)
     super(id, hsh, subsection)
     @joint_purchase = joint_purchase
-    @depends_on =
-      [
-        if @joint_purchase
-          { "joint_purchase?" => true }
-        else
-          { "not_joint_purchase?" => true }
-        end,
-      ]
   end
 
   def questions
@@ -17,4 +9,12 @@ class Form::Sales::Pages::HousingBenefits < ::Form::Page
       Form::Sales::Questions::HousingBenefits.new(nil, nil, self, joint_purchase: @joint_purchase),
     ]
   end
+
+  def depends_on
+    if @joint_purchase
+      [{ "joint_purchase?" => true }]
+    else
+      [{ "not_joint_purchase?" => true }]
+    end
+  end
 end