blob: 60d85725b55fbac246d6d866f0f24c569763ccba [file] [log] [blame]
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
/// @assertion Future catchError(Function onError, {bool test(Object error)})
/// If this future completes with an error, then test is first called with
/// the error value.
/// If test returns false, the exception is not handled by this catchError,
/// and the returned future completes with the same error and stack trace as
/// this future.
/// If test returns true, onError is called with the error and possibly stack
/// trace, and the returned future is completed with the result of this call in
/// exactly the same way as for then's onError.
/// @description Checks that if [test] returns true, then [onError] is called with
/// the error and the returned future is completed with the result of this call.
/// [onError] throws an exception.
/// @author
import "dart:async";
import "../../../Utils/expect.dart";
main() {
Completer completer = new Completer();
Future f = completer.future;
List log = [];
(Object error) {
throw "@";
test:(Object error){
return true;
(value) {"Returned future should complete with error");
onError: (Object e) {
Expect.listEquals([1, "!", 2, "!"], log);
Expect.equals("@", e);