Coverage improvement round-out following up previous work (#23987)

spec/controllers/activitypub/claims_controller_spec.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe ActivityPub::ClaimsController do
+  let(:account) { Fabricate(:account) }
+
+  describe 'POST #create' do
+    context 'without signature' do
+      before do
+        post :create, params: { account_username: account.username }, body: '{}'
+      end
+
+      it 'returns http not authorized' do
+        expect(response).to have_http_status(401)
+      end
+    end
+  end
+end