201 lines
6.6 KiB
Dart
201 lines
6.6 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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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'rendering_tester.dart';
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void main() {
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TestRenderingFlutterBinding.ensureInitialized();
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test('RenderAspectRatio: Intrinsic sizing 2.0', () {
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final box = RenderAspectRatio(aspectRatio: 2.0);
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expect(box.getMinIntrinsicWidth(200.0), 400.0);
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expect(box.getMinIntrinsicWidth(400.0), 800.0);
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expect(box.getMaxIntrinsicWidth(200.0), 400.0);
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expect(box.getMaxIntrinsicWidth(400.0), 800.0);
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expect(box.getMinIntrinsicHeight(200.0), 100.0);
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expect(box.getMinIntrinsicHeight(400.0), 200.0);
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expect(box.getMaxIntrinsicHeight(200.0), 100.0);
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expect(box.getMaxIntrinsicHeight(400.0), 200.0);
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expect(box.getMinIntrinsicWidth(double.infinity), 0.0);
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expect(box.getMaxIntrinsicWidth(double.infinity), 0.0);
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expect(box.getMinIntrinsicHeight(double.infinity), 0.0);
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expect(box.getMaxIntrinsicHeight(double.infinity), 0.0);
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});
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test('RenderAspectRatio: Intrinsic sizing 0.5', () {
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final box = RenderAspectRatio(aspectRatio: 0.5);
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expect(box.getMinIntrinsicWidth(200.0), 100.0);
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expect(box.getMinIntrinsicWidth(400.0), 200.0);
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expect(box.getMaxIntrinsicWidth(200.0), 100.0);
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expect(box.getMaxIntrinsicWidth(400.0), 200.0);
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expect(box.getMinIntrinsicHeight(200.0), 400.0);
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expect(box.getMinIntrinsicHeight(400.0), 800.0);
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expect(box.getMaxIntrinsicHeight(200.0), 400.0);
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expect(box.getMaxIntrinsicHeight(400.0), 800.0);
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expect(box.getMinIntrinsicWidth(double.infinity), 0.0);
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expect(box.getMaxIntrinsicWidth(double.infinity), 0.0);
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expect(box.getMinIntrinsicHeight(double.infinity), 0.0);
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expect(box.getMaxIntrinsicHeight(double.infinity), 0.0);
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});
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test('RenderAspectRatio: Intrinsic sizing 2.0', () {
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final box = RenderAspectRatio(aspectRatio: 2.0, child: RenderSizedBox(const Size(90.0, 70.0)));
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expect(box.getMinIntrinsicWidth(200.0), 400.0);
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expect(box.getMinIntrinsicWidth(400.0), 800.0);
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expect(box.getMaxIntrinsicWidth(200.0), 400.0);
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expect(box.getMaxIntrinsicWidth(400.0), 800.0);
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expect(box.getMinIntrinsicHeight(200.0), 100.0);
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expect(box.getMinIntrinsicHeight(400.0), 200.0);
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expect(box.getMaxIntrinsicHeight(200.0), 100.0);
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expect(box.getMaxIntrinsicHeight(400.0), 200.0);
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expect(box.getMinIntrinsicWidth(double.infinity), 90.0);
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expect(box.getMaxIntrinsicWidth(double.infinity), 90.0);
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expect(box.getMinIntrinsicHeight(double.infinity), 70.0);
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expect(box.getMaxIntrinsicHeight(double.infinity), 70.0);
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});
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test('RenderAspectRatio: Intrinsic sizing 0.5', () {
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final box = RenderAspectRatio(aspectRatio: 0.5, child: RenderSizedBox(const Size(90.0, 70.0)));
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expect(box.getMinIntrinsicWidth(200.0), 100.0);
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expect(box.getMinIntrinsicWidth(400.0), 200.0);
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expect(box.getMaxIntrinsicWidth(200.0), 100.0);
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expect(box.getMaxIntrinsicWidth(400.0), 200.0);
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expect(box.getMinIntrinsicHeight(200.0), 400.0);
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expect(box.getMinIntrinsicHeight(400.0), 800.0);
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expect(box.getMaxIntrinsicHeight(200.0), 400.0);
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expect(box.getMaxIntrinsicHeight(400.0), 800.0);
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expect(box.getMinIntrinsicWidth(double.infinity), 90.0);
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expect(box.getMaxIntrinsicWidth(double.infinity), 90.0);
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expect(box.getMinIntrinsicHeight(double.infinity), 70.0);
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expect(box.getMaxIntrinsicHeight(double.infinity), 70.0);
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});
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test('RenderAspectRatio: Unbounded', () {
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final RenderBox box = RenderConstrainedOverflowBox(
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maxWidth: double.infinity,
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maxHeight: double.infinity,
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child: RenderAspectRatio(aspectRatio: 0.5, child: RenderSizedBox(const Size(90.0, 70.0))),
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);
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final errors = <FlutterErrorDetails>[];
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layout(
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box,
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onErrors: () {
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errors.addAll(TestRenderingFlutterBinding.instance.takeAllFlutterErrorDetails());
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},
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);
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expect(errors, hasLength(2));
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expect(errors.first.exception, isFlutterError);
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expect(
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(errors.first.exception as FlutterError).toStringDeep(),
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'FlutterError\n'
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' RenderAspectRatio has unbounded constraints.\n'
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' This RenderAspectRatio was given an aspect ratio of 0.5 but was\n'
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' given both unbounded width and unbounded height constraints.\n'
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' Because both constraints were unbounded, this render object\n'
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" doesn't know how much size to consume.\n",
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);
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// The second error message is a generic message generated by the Dart VM. Not worth testing.
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});
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test('RenderAspectRatio: Sizing', () {
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RenderConstrainedOverflowBox outside;
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RenderAspectRatio inside;
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layout(
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outside = RenderConstrainedOverflowBox(child: inside = RenderAspectRatio(aspectRatio: 1.0)),
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);
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pumpFrame();
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expect(inside.size, const Size(800.0, 600.0));
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outside.minWidth = 0.0;
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outside.minHeight = 0.0;
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outside.maxWidth = 100.0;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(90.0, 90.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = 100.0;
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pumpFrame();
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expect(inside.size, const Size(90.0, 90.0));
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outside.maxWidth = double.infinity;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(90.0, 90.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = double.infinity;
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pumpFrame();
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expect(inside.size, const Size(90.0, 90.0));
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inside.aspectRatio = 2.0;
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outside.maxWidth = 100.0;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(100.0, 50.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = 100.0;
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pumpFrame();
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expect(inside.size, const Size(90.0, 45.0));
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outside.maxWidth = double.infinity;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(180.0, 90.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = double.infinity;
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pumpFrame();
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expect(inside.size, const Size(90.0, 45.0));
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outside.minWidth = 80.0;
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outside.minHeight = 80.0;
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outside.maxWidth = 100.0;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(100.0, 80.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = 100.0;
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pumpFrame();
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expect(inside.size, const Size(90.0, 80.0));
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outside.maxWidth = double.infinity;
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outside.maxHeight = 90.0;
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pumpFrame();
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expect(inside.size, const Size(180.0, 90.0));
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outside.maxWidth = 90.0;
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outside.maxHeight = double.infinity;
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pumpFrame();
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expect(inside.size, const Size(90.0, 80.0));
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});
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}
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