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Since RelativeRect's whole purpose in life is to make work with Stack easier, it's silly that you can't directly use it with Positioned. Also, tests for RelativeRect. And fixes for the bugs that found...
48 lines
2.0 KiB
Dart
48 lines
2.0 KiB
Dart
// Copyright 2017 The Chromium 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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import 'package:flutter/rendering.dart';
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import 'package:test/test.dart';
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void main() {
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test('RelativeRect.==', () {
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RelativeRect r = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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expect(r, new RelativeRect.fromSize(new Rect.fromLTWH(10.0, 20.0, 0.0, 0.0), const Size(40.0, 60.0)));
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});
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test('RelativeRect.shift', () {
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RelativeRect r1 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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RelativeRect r2 = r1.shift(const Offset(5.0, 50.0));
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expect(r2, const RelativeRect.fromLTRB(15.0, 70.0, 25.0, -10.0));
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});
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test('RelativeRect.inflate', () {
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RelativeRect r1 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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RelativeRect r2 = r1.inflate(5.0);
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expect(r2, const RelativeRect.fromLTRB(5.0, 15.0, 25.0, 35.0));
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});
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test('RelativeRect.deflate', () {
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RelativeRect r1 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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RelativeRect r2 = r1.deflate(5.0);
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expect(r2, const RelativeRect.fromLTRB(15.0, 25.0, 35.0, 45.0));
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});
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test('RelativeRect.intersect', () {
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RelativeRect r1 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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RelativeRect r2 = const RelativeRect.fromLTRB(0.0, 30.0, 60.0, 0.0);
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RelativeRect r3 = r1.intersect(r2);
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RelativeRect r4 = r2.intersect(r1);
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expect(r3, r4);
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expect(r3, const RelativeRect.fromLTRB(10.0, 30.0, 60.0, 40.0));
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});
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test('RelativeRect.toRect', () {
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RelativeRect r1 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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Rect r2 = r1.toRect(new Rect.fromLTRB(10.0, 20.0, 90.0, 180.0));
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expect(r2, new Rect.fromLTRB(10.0, 20.0, 50.0, 120.0));
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});
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test('RelativeRect.lerp', () {
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RelativeRect r1 = RelativeRect.fill;
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RelativeRect r2 = const RelativeRect.fromLTRB(10.0, 20.0, 30.0, 40.0);
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RelativeRect r3 = RelativeRect.lerp(r1, r2, 0.5);
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expect(r3, const RelativeRect.fromLTRB(5.0, 10.0, 15.0, 20.0));
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});
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}
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