dart-sdk/tests/corelib/double_round_test.dart
Robert Nystrom a4d799c402 Migrate corelib/ tests starting with b-d to NNBD.
Note that cast_test.dart isn't migrated yet due to #39517.

First patch set is just copying the tests over. The second patchset has
the actual meaningful changes.

Change-Id: I89233f20187b4305a776f865cde09a984423fa4f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/125920
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2019-12-02 23:13:10 +00:00

50 lines
2.1 KiB
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 'package:expect/expect.dart';
main() {
Expect.equals(0, 0.0.round());
Expect.equals(0, double.minPositive.round());
Expect.equals(0, (2.0 * double.minPositive).round());
Expect.equals(0, (1.18e-38).round());
Expect.equals(0, (1.18e-38 * 2).round());
Expect.equals(1, 0.5.round());
Expect.equals(1, 0.9999999999999999.round());
Expect.equals(1, 1.0.round());
Expect.equals(1, 1.000000000000001.round());
Expect.equals(9223372036854775807, double.maxFinite.round()); // //# int64: ok
Expect.equals(0, (-double.minPositive).round());
Expect.equals(0, (2.0 * -double.minPositive).round());
Expect.equals(0, (-1.18e-38).round());
Expect.equals(0, (-1.18e-38 * 2).round());
Expect.equals(-1, (-0.5).round());
Expect.equals(-1, (-0.9999999999999999).round());
Expect.equals(-1, (-1.0).round());
Expect.equals(-1, (-1.000000000000001).round());
Expect.equals(-9223372036854775808, (-double.maxFinite).round()); // //# int64: ok
Expect.isTrue(0.0.round() is int);
Expect.isTrue(double.minPositive.round() is int);
Expect.isTrue((2.0 * double.minPositive).round() is int);
Expect.isTrue((1.18e-38).round() is int);
Expect.isTrue((1.18e-38 * 2).round() is int);
Expect.isTrue(0.5.round() is int);
Expect.isTrue(0.9999999999999999.round() is int);
Expect.isTrue(1.0.round() is int);
Expect.isTrue(1.000000000000001.round() is int);
Expect.isTrue(double.maxFinite.round() is int);
Expect.isTrue((-double.minPositive).round() is int);
Expect.isTrue((2.0 * -double.minPositive).round() is int);
Expect.isTrue((-1.18e-38).round() is int);
Expect.isTrue((-1.18e-38 * 2).round() is int);
Expect.isTrue((-0.5).round() is int);
Expect.isTrue((-0.9999999999999999).round() is int);
Expect.isTrue((-1.0).round() is int);
Expect.isTrue((-1.000000000000001).round() is int);
Expect.isTrue((-double.maxFinite).round() is int);
}