29 lines
1.1 KiB
Dart
29 lines
1.1 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// @dart = 2.8
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/widgets.dart';
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void main() {
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test('ClampingScrollSimulation has a stable initial conditions', () {
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void checkInitialConditions(double position, double velocity) {
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final ClampingScrollSimulation simulation = ClampingScrollSimulation(position: position, velocity: velocity);
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expect(simulation.x(0.0), moreOrLessEquals(position));
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expect(simulation.dx(0.0), moreOrLessEquals(velocity));
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}
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checkInitialConditions(51.0, 2866.91537);
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checkInitialConditions(584.0, 2617.294734);
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checkInitialConditions(345.0, 1982.785934);
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checkInitialConditions(0.0, 1831.366634);
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checkInitialConditions(-156.2, 1541.57665);
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checkInitialConditions(4.0, 1139.250439);
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checkInitialConditions(4534.0, 1073.553798);
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checkInitialConditions(75.0, 614.2093);
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checkInitialConditions(5469.0, 182.114534);
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});
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}
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