blob: 2c207c1fd1c029d1488705be268de237448b7944 [file] [log] [blame]
// Copyright 2014 The Flutter 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/rendering.dart';
import '../flutter_test_alternative.dart';
import 'rendering_tester.dart';
// before using this, consider using RenderSizedBox from rendering_tester.dart
class RenderTestBox extends RenderBox {
RenderTestBox(this._intrinsicDimensions);
final BoxConstraints _intrinsicDimensions;
@override
double computeMinIntrinsicWidth(double height) {
return _intrinsicDimensions.minWidth;
}
@override
double computeMaxIntrinsicWidth(double height) {
return _intrinsicDimensions.maxWidth;
}
@override
double computeMinIntrinsicHeight(double width) {
return _intrinsicDimensions.minHeight;
}
@override
double computeMaxIntrinsicHeight(double width) {
return _intrinsicDimensions.maxHeight;
}
@override
bool get sizedByParent => true;
@override
void performResize() {
size = constraints.constrain(Size(_intrinsicDimensions.minWidth + (_intrinsicDimensions.maxWidth-_intrinsicDimensions.minWidth) / 2.0,
_intrinsicDimensions.minHeight + (_intrinsicDimensions.maxHeight-_intrinsicDimensions.minHeight) / 2.0));
}
}
void main() {
test('Shrink-wrapping width', () {
final RenderBox child = RenderTestBox(const BoxConstraints(minWidth: 10.0, maxWidth: 100.0, minHeight: 20.0, maxHeight: 200.0));
final RenderBox parent = RenderIntrinsicWidth(child: child);
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(100.0));
expect(parent.size.height, equals(110.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(100.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(100.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(20.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(200.0));
});
test('IntrinsicWidth without a child', () {
final RenderBox parent = RenderIntrinsicWidth();
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(5.0));
expect(parent.size.height, equals(8.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(0.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(0.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(0.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(0.0));
});
test('Shrink-wrapping width (stepped width)', () {
final RenderBox child = RenderTestBox(const BoxConstraints(minWidth: 10.0, maxWidth: 100.0, minHeight: 20.0, maxHeight: 200.0));
final RenderBox parent = RenderIntrinsicWidth(child: child, stepWidth: 47.0);
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(3.0 * 47.0));
expect(parent.size.height, equals(110.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(3.0 * 47.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(3.0 * 47.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(3.0 * 47.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(3.0 * 47.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(3.0 * 47.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(3.0 * 47.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(20.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(3.0 * 47.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(3.0 * 47.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(20.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(200.0));
});
test('Shrink-wrapping width (stepped height)', () {
final RenderBox child = RenderTestBox(const BoxConstraints(minWidth: 10.0, maxWidth: 100.0, minHeight: 20.0, maxHeight: 200.0));
final RenderBox parent = RenderIntrinsicWidth(child: child, stepHeight: 47.0);
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(100.0));
expect(parent.size.height, equals(235.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(100.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(100.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(100.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(5.0 * 47.0));
});
test('Shrink-wrapping width (stepped everything)', () {
final RenderBox child = RenderTestBox(const BoxConstraints(minWidth: 10.0, maxWidth: 100.0, minHeight: 20.0, maxHeight: 200.0));
final RenderBox parent = RenderIntrinsicWidth(child: child, stepHeight: 47.0, stepWidth: 37.0);
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(3.0 * 37.0));
expect(parent.size.height, equals(235.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(3.0 * 37.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(3.0 * 37.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(3.0 * 37.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(3.0 * 37.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(3.0 * 37.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(3.0 * 37.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(5.0 * 47.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(3.0 * 37.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(3.0 * 37.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(1.0 * 47.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(5.0 * 47.0));
});
test('Shrink-wrapping height', () {
final RenderBox child = RenderTestBox(const BoxConstraints(minWidth: 10.0, maxWidth: 100.0, minHeight: 20.0, maxHeight: 200.0));
final RenderBox parent = RenderIntrinsicHeight(child: child);
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(55.0));
expect(parent.size.height, equals(200.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(10.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(200.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(10.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(200.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(10.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(100.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(200.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(200.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(10.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(100.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(200.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(200.0));
});
test('IntrinsicHeight without a child', () {
final RenderBox parent = RenderIntrinsicHeight();
layout(parent,
constraints: const BoxConstraints(
minWidth: 5.0,
minHeight: 8.0,
maxWidth: 500.0,
maxHeight: 800.0,
),
);
expect(parent.size.width, equals(5.0));
expect(parent.size.height, equals(8.0));
expect(parent.getMinIntrinsicWidth(0.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(0.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(0.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(0.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(10.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(10.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(10.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(10.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(80.0), equals(0.0));
expect(parent.getMaxIntrinsicWidth(80.0), equals(0.0));
expect(parent.getMinIntrinsicHeight(80.0), equals(0.0));
expect(parent.getMaxIntrinsicHeight(80.0), equals(0.0));
expect(parent.getMinIntrinsicWidth(double.infinity), equals(0.0));
expect(parent.getMaxIntrinsicWidth(double.infinity), equals(0.0));
expect(parent.getMinIntrinsicHeight(double.infinity), equals(0.0));
expect(parent.getMaxIntrinsicHeight(double.infinity), equals(0.0));
});
test('Padding and boring intrinsics', () {
final RenderBox box = RenderPadding(
padding: const EdgeInsets.all(15.0),
child: RenderSizedBox(const Size(20.0, 20.0)),
);
expect(box.getMinIntrinsicWidth(0.0), 50.0);
expect(box.getMaxIntrinsicWidth(0.0), 50.0);
expect(box.getMinIntrinsicHeight(0.0), 50.0);
expect(box.getMaxIntrinsicHeight(0.0), 50.0);
expect(box.getMinIntrinsicWidth(10.0), 50.0);
expect(box.getMaxIntrinsicWidth(10.0), 50.0);
expect(box.getMinIntrinsicHeight(10.0), 50.0);
expect(box.getMaxIntrinsicHeight(10.0), 50.0);
expect(box.getMinIntrinsicWidth(80.0), 50.0);
expect(box.getMaxIntrinsicWidth(80.0), 50.0);
expect(box.getMinIntrinsicHeight(80.0), 50.0);
expect(box.getMaxIntrinsicHeight(80.0), 50.0);
expect(box.getMinIntrinsicWidth(double.infinity), 50.0);
expect(box.getMaxIntrinsicWidth(double.infinity), 50.0);
expect(box.getMinIntrinsicHeight(double.infinity), 50.0);
expect(box.getMaxIntrinsicHeight(double.infinity), 50.0);
// also a smoke test:
layout(
box,
constraints: const BoxConstraints(
minWidth: 10.0,
minHeight: 10.0,
maxWidth: 10.0,
maxHeight: 10.0,
),
);
});
test('Padding and interesting intrinsics', () {
final RenderBox box = RenderPadding(
padding: const EdgeInsets.all(15.0),
child: RenderAspectRatio(aspectRatio: 1.0),
);
expect(box.getMinIntrinsicWidth(0.0), 30.0);
expect(box.getMaxIntrinsicWidth(0.0), 30.0);
expect(box.getMinIntrinsicHeight(0.0), 30.0);
expect(box.getMaxIntrinsicHeight(0.0), 30.0);
expect(box.getMinIntrinsicWidth(10.0), 30.0);
expect(box.getMaxIntrinsicWidth(10.0), 30.0);
expect(box.getMinIntrinsicHeight(10.0), 30.0);
expect(box.getMaxIntrinsicHeight(10.0), 30.0);
expect(box.getMinIntrinsicWidth(80.0), 80.0);
expect(box.getMaxIntrinsicWidth(80.0), 80.0);
expect(box.getMinIntrinsicHeight(80.0), 80.0);
expect(box.getMaxIntrinsicHeight(80.0), 80.0);
expect(box.getMinIntrinsicWidth(double.infinity), 30.0);
expect(box.getMaxIntrinsicWidth(double.infinity), 30.0);
expect(box.getMinIntrinsicHeight(double.infinity), 30.0);
expect(box.getMaxIntrinsicHeight(double.infinity), 30.0);
// also a smoke test:
layout(
box,
constraints: const BoxConstraints(
minWidth: 10.0,
minHeight: 10.0,
maxWidth: 10.0,
maxHeight: 10.0,
),
);
});
test('Padding and boring intrinsics', () {
final RenderBox box = RenderPadding(
padding: const EdgeInsets.all(15.0),
child: RenderSizedBox(const Size(20.0, 20.0)),
);
expect(box.getMinIntrinsicWidth(0.0), 50.0);
expect(box.getMaxIntrinsicWidth(0.0), 50.0);
expect(box.getMinIntrinsicHeight(0.0), 50.0);
expect(box.getMaxIntrinsicHeight(0.0), 50.0);
expect(box.getMinIntrinsicWidth(10.0), 50.0);
expect(box.getMaxIntrinsicWidth(10.0), 50.0);
expect(box.getMinIntrinsicHeight(10.0), 50.0);
expect(box.getMaxIntrinsicHeight(10.0), 50.0);
expect(box.getMinIntrinsicWidth(80.0), 50.0);
expect(box.getMaxIntrinsicWidth(80.0), 50.0);
expect(box.getMinIntrinsicHeight(80.0), 50.0);
expect(box.getMaxIntrinsicHeight(80.0), 50.0);
expect(box.getMinIntrinsicWidth(double.infinity), 50.0);
expect(box.getMaxIntrinsicWidth(double.infinity), 50.0);
expect(box.getMinIntrinsicHeight(double.infinity), 50.0);
expect(box.getMaxIntrinsicHeight(double.infinity), 50.0);
// also a smoke test:
layout(
box,
constraints: const BoxConstraints(
minWidth: 10.0,
minHeight: 10.0,
maxWidth: 10.0,
maxHeight: 10.0,
),
);
});
test('Padding and interesting intrinsics', () {
final RenderBox box = RenderPadding(
padding: const EdgeInsets.all(15.0),
child: RenderAspectRatio(aspectRatio: 1.0),
);
expect(box.getMinIntrinsicWidth(0.0), 30.0);
expect(box.getMaxIntrinsicWidth(0.0), 30.0);
expect(box.getMinIntrinsicHeight(0.0), 30.0);
expect(box.getMaxIntrinsicHeight(0.0), 30.0);
expect(box.getMinIntrinsicWidth(10.0), 30.0);
expect(box.getMaxIntrinsicWidth(10.0), 30.0);
expect(box.getMinIntrinsicHeight(10.0), 30.0);
expect(box.getMaxIntrinsicHeight(10.0), 30.0);
expect(box.getMinIntrinsicWidth(80.0), 80.0);
expect(box.getMaxIntrinsicWidth(80.0), 80.0);
expect(box.getMinIntrinsicHeight(80.0), 80.0);
expect(box.getMaxIntrinsicHeight(80.0), 80.0);
expect(box.getMinIntrinsicWidth(double.infinity), 30.0);
expect(box.getMaxIntrinsicWidth(double.infinity), 30.0);
expect(box.getMinIntrinsicHeight(double.infinity), 30.0);
expect(box.getMaxIntrinsicHeight(double.infinity), 30.0);
// also a smoke test:
layout(
box,
constraints: const BoxConstraints(
minWidth: 10.0,
minHeight: 10.0,
maxWidth: 10.0,
maxHeight: 10.0,
),
);
});
}