diff --git a/spec/helpers/conditional_questions_helper_spec.rb b/spec/helpers/conditional_questions_helper_spec.rb
new file mode 100644
index 000000000..1cc29d176
--- /dev/null
+++ b/spec/helpers/conditional_questions_helper_spec.rb
@@ -0,0 +1,15 @@
+require "rails_helper"
+
+RSpec.describe ConditionalQuestionsHelper do
+  let(:form) { Form.new(2021, 2022) }
+  let(:page_key) { "armed_forces" }
+  let(:page) { form.all_pages[page_key] }
+
+  describe "conditional questions for page" do
+    let(:conditional_pages) { ["armed_forces_active", "armed_forces_injured"] }
+
+    it "returns the question keys of all conditional questions on the given page" do
+      expect(conditional_questions_for_page(page)).to eq(conditional_pages)
+    end
+  end
+end