Add more images to admin site customization

spec/components/widget/feeds/process_component_spec.rb

@@ -20,4 +20,24 @@ describe Widget::Feeds::ProcessComponent do
 
     expect(page).to have_css("img[alt='1. No Poverty']")
   end
+
+  describe "image" do
+    it "shows the default image" do
+      render_inline component
+
+      expect(page).to have_css "img[src*='welcome_process']"
+    end
+
+    it "shows a custom default image when available" do
+      stub_const("#{SiteCustomization::Image}::VALID_IMAGES", { "welcome_process" => [260, 80] })
+      create(:site_customization_image,
+             name: "welcome_process",
+             image: fixture_file_upload("logo_header-260x80.png"))
+
+      render_inline component
+
+      expect(page).to have_css "img[src$='logo_header-260x80.png']"
+      expect(page).not_to have_css "img[src*='welcome_process']"
+    end
+  end
 end