Robert Nystrom
d4154ac6dc
Change-Id: Iad2963c7f9c184b089dc6d15aa4442f58d194bc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151983 Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
44 lines
1.1 KiB
Dart
44 lines
1.1 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Dart test program for testing the instanceof operation.
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library intrinsified_methods_test;
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import "package:expect/expect.dart";
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import 'dart:math';
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testIsNegative() {
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Expect.isFalse((12.0).isNegative);
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Expect.isTrue((-12.0).isNegative);
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Expect.isFalse((double.nan).isNegative);
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Expect.isFalse((0.0).isNegative);
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Expect.isTrue((-0.0).isNegative);
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Expect.isFalse((double.infinity).isNegative);
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Expect.isTrue((double.negativeInfinity).isNegative);
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}
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testIsNaN() {
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Expect.isFalse((1.0).isNaN);
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Expect.isTrue((double.nan).isNaN);
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}
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testTrigonometric() {
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Expect.approxEquals(1.0, sin(pi / 2.0), 0.0001);
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Expect.approxEquals(1.0, cos(0), 0.0001);
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Expect.approxEquals(1.0, cos(0.0), 0.0001);
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}
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void foo(int n) {
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for (var i = 0; i <= n; ++i) {
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Expect.equals(2.0, sqrt(4.0));
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testIsNegative();
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testIsNaN();
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testTrigonometric();
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}
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}
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void main() {
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foo(4000);
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}
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