tests/lib/async/catch_errors8_test.dart

// Copyright (c) 2013, 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.

import 'dart:async';

import 'package:expect/async_helper.dart';
import 'package:expect/expect.dart';

import 'catch_errors.dart';

void main() {
  asyncStart();
  Completer done = Completer();

  var events = [];
  // Test nested `catchErrors`.
  // The nested `catchErrors` throws all kinds of different errors (synchronous
  // and asynchronous). The body of the outer `catchErrors` furthermore has a
  // synchronous `throw`.
  catchErrors(() {
    events.add("catch error entry");
    catchErrors(() {
      events.add("catch error entry2");
      Future.error("future error");
      Future.error("future error2");
      Future.value(499).then((x) => throw x);
      Future.delayed(const Duration(milliseconds: 50), () {
        throw "delayed error";
      });
      throw "catch error";
    }).listen((x) {
      events.add(x);
      if (x == "delayed error") {
        throw "inner done throw";
      }
    });
    events.add("after inner");
    throw "inner throw";
  }).listen(
    (x) {
      events.add(x);
      if (x == "inner done throw") {
        done.complete(true);
      }
    },
    onDone: () {
      Expect.fail("Unexpected callback");
    },
  );

  done.future.whenComplete(() {
    Expect.listEquals([
      "catch error entry",
      "catch error entry2",
      "after inner",
      "main exit",
      "catch error",
      "inner throw",
      "future error",
      "future error2",
      499,
      "delayed error",
      "inner done throw",
    ], events);
    asyncEnd();
  });
  events.add("main exit");
}