packages/flutter_test/test/matchers_test.dart

// Copyright 2016 The Chromium Authors. 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:flutter_test/flutter_test.dart';

void main() {
  test('hasOneLineDescription', () {
    expect('Hello', hasOneLineDescription);
    expect('Hello\nHello', isNot(hasOneLineDescription));
    expect(' Hello', isNot(hasOneLineDescription));
    expect('Hello ', isNot(hasOneLineDescription));
    expect(new Object(), isNot(hasOneLineDescription));
  });

  test('moreOrLessEquals', () {
    expect(0.0, moreOrLessEquals(1e-11));
    expect(1e-11, moreOrLessEquals(0.0));
    expect(-1e-11, moreOrLessEquals(0.0));

    expect(0.0, isNot(moreOrLessEquals(1e11)));
    expect(1e11, isNot(moreOrLessEquals(0.0)));
    expect(-1e11, isNot(moreOrLessEquals(0.0)));

    expect(0.0, isNot(moreOrLessEquals(1.0)));
    expect(1.0, isNot(moreOrLessEquals(0.0)));
    expect(-1.0, isNot(moreOrLessEquals(0.0)));

    expect(1e-11, moreOrLessEquals(-1e-11));
    expect(-1e-11, moreOrLessEquals(1e-11));

    expect(11.0, isNot(moreOrLessEquals(-11.0, epsilon: 1.0)));
    expect(-11.0, isNot(moreOrLessEquals(11.0, epsilon: 1.0)));

    expect(11.0, moreOrLessEquals(-11.0, epsilon: 100.0));
    expect(-11.0, moreOrLessEquals(11.0, epsilon: 100.0));
  });
}