Spec attrib merging

spec/helpers/stimulus_controller_attribute_helper_spec.rb

@@ -17,5 +17,35 @@ RSpec.describe StimulusControllerAttributeHelper do
         "data-calculated": questions["basic_rent"]["fields-to-add"].to_json,
       })
     end
+
+    context "a question that requires multiple controllers" do
+      let(:question) {
+        {
+          "check_answer_label"=>"Basic Rent",
+          "header"=>"What is the basic rent?",
+          "hint_text"=>"Eligible for housing benefit or Universal Credit",
+          "type"=>"numeric",
+          "min"=>0,
+          "step"=>1,
+          "fields-to-add"=>["basic_rent", "service_charge", "personal_service_charge", "support_charge"],
+          "result-field"=>"total_charge",
+          "conditional_for" => {
+            "next_question": ">1"
+          }
+        }
+      }
+      let(:expected_attribs) {
+        {
+          "data-controller": "numeric-question conditional-question",
+          "data-action": "numeric-question#calculateFields conditional-question#displayConditional",
+          "data-target": "case-log-#{question['result-field'].to_s.dasherize}-field",
+          "data-calculated": question["fields-to-add"].to_json,
+          "data-info": question["conditional_for"].to_json
+        }
+      }
+      it "correctly merges html attributes" do
+        expect(stimulus_html_attributes(question)).to eq(expected_attribs)
+      end
+    end
   end
 end