Add view tests for smiles list partial

spec/views/answerbox/_smiles.html.haml_spec.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe "answerbox/_smiles.html.haml", type: :view do
+  subject(:rendered) do
+    render partial: "answerbox/smiles", locals: { a: }
+  end
+
+  let(:a) { FactoryBot.create(:answer, user: FactoryBot.create(:user)) }
+
+  context "no reactions" do
+    it "shows an empty list" do
+      expect(rendered).to match("No one smiled this yet.")
+    end
+  end
+
+  context "reactions are present" do
+    let!(:reactions) { FactoryBot.create_list(:smile, 5, parent: a) }
+
+    it "shows a list of users" do
+      html = Nokogiri::HTML.parse(rendered)
+      selector = %(.smiles a)
+      reaction_elements = html.css(selector)
+      expect(reaction_elements.size).to eq(5)
+    end
+  end
+end