#[test]
  fn unknown_preview() {
    let server = TestServer::new_with_regtest();
    server.mine_blocks(1);

    let txid = server.bitcoin_rpc_server.broadcast_tx(TransactionTemplate {
      inputs: &[(1, 0, 0, inscription("text/foo", "hello").to_witness())],
      ..Default::default()
    });

    server.mine_blocks(1);

    server.assert_response_csp(
      format!("/preview/{}", InscriptionId { txid, index: 0 }),
      StatusCode::OK,
      "default-src 'self'",
      fs::read_to_string("templates/preview-unknown.html").unwrap(),
    );
  }

  #[test]
  fn video_preview() {
    let server = TestServer::new_with_regtest();
    server.mine_blocks(1);

    let txid = server.bitcoin_rpc_server.broadcast_tx(TransactionTemplate {
      inputs: &[(1, 0, 0, inscription("video/webm", "hello").to_witness())],
      ..Default::default()
    });
    let inscription_id = InscriptionId { txid, index: 0 };

    server.mine_blocks(1);

    server.assert_response_regex(
      format!("/preview/{inscription_id}"),
      StatusCode::OK,