fix: Downgrade wicked_pdf to 2.6.3 (#477)

Gemfile.lock

@@ -1071,7 +1071,7 @@ GEM
     websocket-extensions (0.1.5)
     wicked (1.4.0)
       railties (>= 3.0.7)
-    wicked_pdf (2.7.0)
+    wicked_pdf (2.6.3)
       activesupport
     wisper (2.0.1)
     wisper-rspec (1.1.0)

spec/system/admin/export_initiative_signatures_spec.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+describe "Export" do
+  include_context "when admins initiative"
+
+  let!(:votes) { create_list(:initiative_user_vote, 5, initiative: initiative) }
+
+  before do
+    switch_to_host(organization.host)
+    login_as user, scope: :user
+  end
+
+  it "downloads the PDF file", :download do
+    visit decidim_admin_initiatives.initiatives_path
+
+    within find("tr", text: translated(initiative.title)) do
+      page.find(".action-icon--edit").click
+    end
+
+    click_link "Export PDF of signatures"
+    within ".confirm-reveal" do
+      click_link "OK"
+    end
+
+    expect(File.basename(download_path)).to include("votes_#{initiative.id}.pdf")
+  end
+end