Display person known question for appropriate number of other household members

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

@@ -12,6 +12,23 @@ class Form::Sales::Pages::PersonKnown < Form::Sales::Pages::Person
   end
 
   def depends_on
-    [{ "jointpur" => 2 }] if @person_index == 2
+    if @person_index == 2
+      [{ "jointpur" => 2,
+         "hholdcount" => {
+           "operator" => ">=",
+           "operand" => 1,
+         } }]
+    else
+      [{ "jointpur" => 2,
+         "hholdcount" => {
+           "operator" => ">=",
+           "operand" => @person_index - 1,
+         } },
+       { "jointpur" => 1,
+         "hholdcount" => {
+           "operator" => ">=",
+           "operand" => @person_index - 2,
+         } }]
+    end
   end
 end

spec/models/form/sales/pages/person_known_spec.rb

@@ -38,7 +38,13 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
       end
 
       it "has correct depends_on" do
-        expect(page.depends_on).to eq([{ "jointpur" => 2 }])
+        expect(page.depends_on).to eq([{
+          "jointpur" => 2,
+          "hholdcount" => {
+            "operand" => 1,
+            "operator" => ">=",
+          },
+        }])
       end
     end
 
@@ -59,7 +65,21 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
       end
 
       it "has correct depends_on" do
-        expect(page.depends_on).to be nil
+        expect(page.depends_on).to eq([
+          {
+            "hholdcount" => {
+              "operand" => 2,
+              "operator" => ">=",
+            },
+            "jointpur" => 2,
+          },
+          {
+            "hholdcount" =>
+            { "operand" => 1,
+              "operator" => ">=" },
+            "jointpur" => 1,
+          },
+        ])
       end
     end
 
@@ -80,7 +100,22 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
       end
 
       it "has correct depends_on" do
-        expect(page.depends_on).to be nil
+        expect(page.depends_on).to eq([
+          {
+            "hholdcount" => {
+              "operand" => 3,
+              "operator" => ">=",
+            },
+            "jointpur" => 2,
+          },
+          {
+            "hholdcount" => {
+              "operand" => 2,
+              "operator" => ">=",
+            },
+            "jointpur" => 1,
+          },
+        ])
       end
     end
 
@@ -101,7 +136,20 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
       end
 
       it "has correct depends_on" do
-        expect(page.depends_on).to be nil
+        expect(page.depends_on).to eq([
+          {
+            "hholdcount" =>
+            { "operand" => 4, "operator" => ">=" },
+            "jointpur" => 2,
+          },
+          {
+            "hholdcount" => {
+              "operand" => 3,
+              "operator" => ">=",
+            },
+            "jointpur" => 1,
+          },
+        ])
       end
     end
   end