Add coverage/bugfix for invalid appeal submission (#28703)

app/views/disputes/strikes/show.html.haml

@@ -21,7 +21,7 @@
 
 .report-header
   .report-header__card
-    = render 'card', strike: @strike
+    = render 'disputes/strikes/card', strike: @strike
 
   .report-header__details
     .report-header__details__item

spec/controllers/disputes/appeals_controller_spec.rb

@@ -10,6 +10,7 @@ RSpec.describe Disputes::AppealsController do
   let!(:admin) { Fabricate(:user, role: UserRole.find_by(name: 'Admin')) }
 
   describe '#create' do
+    context 'with valid params' do
       let(:current_user) { Fabricate(:user) }
       let(:strike) { Fabricate(:account_warning, target_account: current_user.account) }
 
@@ -25,4 +26,22 @@ RSpec.describe Disputes::AppealsController do
         expect(response).to redirect_to(disputes_strike_path(strike.id))
       end
     end
+
+    context 'with invalid params' do
+      let(:current_user) { Fabricate(:user) }
+      let(:strike) { Fabricate(:account_warning, target_account: current_user.account) }
+
+      before do
+        post :create, params: { strike_id: strike.id, appeal: { text: '' } }
+      end
+
+      it 'does not send email', :sidekiq_inline do
+        expect(ActionMailer::Base.deliveries.size).to eq(0)
+      end
+
+      it 'renders the strike show page' do
+        expect(response).to render_template('disputes/strikes/show')
+      end
+    end
+  end
 end