blob: 6d97507f100c1478aae567ca83233caeceb9503e [file] [log] [blame]
// Copyright (c) 2012, 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
library future_test;
import "package:expect/expect.dart";
import 'dart:async';
main() {
compare(func) {
// Compare the results of the following two futures.
Future f1 = new Future(func);
Future f2 = new Future.value().then((_) => func());
f2.catchError((_) {}); // I'll get the error later.
f1.then((v1) {
f2.then((v2) {
Expect.equals(v1, v2);
});
}, onError: (e1) {
f2.then((_) {
Expect.fail("Expected error");
}, onError: (e2) {
Expect.equals(e1, e2);
});
});
}
Future val = new Future.value(42);
Future err1 = new Future.error("Error")..catchError((_) {});
compare(() => 42);
compare(() => val);
compare(() {
throw "Flif";
});
compare(() => err1);
bool hasExecuted = false;
compare(() {
hasExecuted = true;
return 499;
});
Expect.isFalse(hasExecuted);
}