# frozen_string_literal: true require "test_helper" require "database/setup" class ActiveStorage::PreviewsControllerTest < ActionDispatch::IntegrationTest setup do @blob = create_file_blob filename: "report.pdf", content_type: "application/pdf" end test "showing preview inline" do get rails_blob_preview_url( filename: @blob.filename, signed_blob_id: @blob.signed_id, variation_key: ActiveStorage::Variation.encode(resize: "100x100")) assert_predicate @blob.preview_image, :attached? assert_redirected_to(/report\.png\?.*disposition=inline/) image = read_image(@blob.preview_image.variant(resize: "100x100")) assert_equal 77, image.width assert_equal 100, image.height end test "showing preview with invalid signed blob ID" do get rails_blob_preview_url( filename: @blob.filename, signed_blob_id: "invalid", variation_key: ActiveStorage::Variation.encode(resize: "100x100")) assert_response :not_found end end