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// 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/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
test('ButtonStyle copyWith, merge, ==, hashCode basics', () {
expect(const ButtonStyle(), const ButtonStyle().copyWith());
expect(const ButtonStyle().merge(const ButtonStyle()), const ButtonStyle());
expect(const ButtonStyle().hashCode, const ButtonStyle().copyWith().hashCode);
});
test('ButtonStyle lerp special cases', () {
expect(ButtonStyle.lerp(null, null, 0), null);
const ButtonStyle data = ButtonStyle();
expect(identical(ButtonStyle.lerp(data, data, 0.5), data), true);
});
test('ButtonStyle defaults', () {
const ButtonStyle style = ButtonStyle();
expect(style.textStyle, null);
expect(style.backgroundColor, null);
expect(style.foregroundColor, null);
expect(style.overlayColor, null);
expect(style.shadowColor, null);
expect(style.surfaceTintColor, null);
expect(style.elevation, null);
expect(style.padding, null);
expect(style.minimumSize, null);
expect(style.fixedSize, null);
expect(style.maximumSize, null);
expect(style.iconColor, null);
expect(style.iconSize, null);
expect(style.side, null);
expect(style.shape, null);
expect(style.mouseCursor, null);
expect(style.visualDensity, null);
expect(style.tapTargetSize, null);
expect(style.animationDuration, null);
expect(style.enableFeedback, null);
});
testWidgets('Default ButtonStyle debugFillProperties', (WidgetTester tester) async {
final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
const ButtonStyle().debugFillProperties(builder);
final List<String> description = builder.properties
.where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
.map((DiagnosticsNode node) => node.toString())
.toList();
expect(description, <String>[]);
});
testWidgets('ButtonStyle debugFillProperties', (WidgetTester tester) async {
final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
const ButtonStyle(
textStyle: MaterialStatePropertyAll<TextStyle>(TextStyle(fontSize: 10.0)),
backgroundColor: MaterialStatePropertyAll<Color>(Color(0xfffffff1)),
foregroundColor: MaterialStatePropertyAll<Color>(Color(0xfffffff2)),
overlayColor: MaterialStatePropertyAll<Color>(Color(0xfffffff3)),
shadowColor: MaterialStatePropertyAll<Color>(Color(0xfffffff4)),
surfaceTintColor: MaterialStatePropertyAll<Color>(Color(0xfffffff5)),
elevation: MaterialStatePropertyAll<double>(1.5),
padding: MaterialStatePropertyAll<EdgeInsets>(EdgeInsets.all(1.0)),
minimumSize: MaterialStatePropertyAll<Size>(Size(1.0, 2.0)),
side: MaterialStatePropertyAll<BorderSide>(BorderSide(width: 4.0, color: Color(0xfffffff6))),
maximumSize: MaterialStatePropertyAll<Size>(Size(100.0, 200.0)),
iconColor: MaterialStatePropertyAll<Color>(Color(0xfffffff6)),
iconSize: MaterialStatePropertyAll<double>(48.1),
shape: MaterialStatePropertyAll<OutlinedBorder>(StadiumBorder()),
mouseCursor: MaterialStatePropertyAll<MouseCursor>(SystemMouseCursors.forbidden),
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
animationDuration: Duration(seconds: 1),
enableFeedback: true,
).debugFillProperties(builder);
final List<String> description = builder.properties
.where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
.map((DiagnosticsNode node) => node.toString())
.toList();
expect(description, <String>[
'textStyle: MaterialStatePropertyAll(TextStyle(inherit: true, size: 10.0))',
'backgroundColor: MaterialStatePropertyAll(Color(0xfffffff1))',
'foregroundColor: MaterialStatePropertyAll(Color(0xfffffff2))',
'overlayColor: MaterialStatePropertyAll(Color(0xfffffff3))',
'shadowColor: MaterialStatePropertyAll(Color(0xfffffff4))',
'surfaceTintColor: MaterialStatePropertyAll(Color(0xfffffff5))',
'elevation: MaterialStatePropertyAll(1.5)',
'padding: MaterialStatePropertyAll(EdgeInsets.all(1.0))',
'minimumSize: MaterialStatePropertyAll(Size(1.0, 2.0))',
'maximumSize: MaterialStatePropertyAll(Size(100.0, 200.0))',
'iconColor: MaterialStatePropertyAll(Color(0xfffffff6))',
'iconSize: MaterialStatePropertyAll(48.1)',
'side: MaterialStatePropertyAll(BorderSide(color: Color(0xfffffff6), width: 4.0))',
'shape: MaterialStatePropertyAll(StadiumBorder(BorderSide(width: 0.0, style: none)))',
'mouseCursor: MaterialStatePropertyAll(SystemMouseCursor(forbidden))',
'tapTargetSize: shrinkWrap',
'animationDuration: 0:00:01.000000',
'enableFeedback: true',
]);
});
testWidgets('ButtonStyle copyWith, merge', (WidgetTester tester) async {
const MaterialStateProperty<TextStyle> textStyle = MaterialStatePropertyAll<TextStyle>(TextStyle(fontSize: 10));
const MaterialStateProperty<Color> backgroundColor = MaterialStatePropertyAll<Color>(Color(0xfffffff1));
const MaterialStateProperty<Color> foregroundColor = MaterialStatePropertyAll<Color>(Color(0xfffffff2));
const MaterialStateProperty<Color> overlayColor = MaterialStatePropertyAll<Color>(Color(0xfffffff3));
const MaterialStateProperty<Color> shadowColor = MaterialStatePropertyAll<Color>(Color(0xfffffff4));
const MaterialStateProperty<Color> surfaceTintColor = MaterialStatePropertyAll<Color>(Color(0xfffffff5));
const MaterialStateProperty<double> elevation = MaterialStatePropertyAll<double>(1);
const MaterialStateProperty<EdgeInsets> padding = MaterialStatePropertyAll<EdgeInsets>(EdgeInsets.all(1));
const MaterialStateProperty<Size> minimumSize = MaterialStatePropertyAll<Size>(Size(1, 2));
const MaterialStateProperty<Size> fixedSize = MaterialStatePropertyAll<Size>(Size(3, 4));
const MaterialStateProperty<Size> maximumSize = MaterialStatePropertyAll<Size>(Size(5, 6));
const MaterialStateProperty<Color> iconColor = MaterialStatePropertyAll<Color>(Color(0xfffffff6));
const MaterialStateProperty<double> iconSize = MaterialStatePropertyAll<double>(48.0);
const MaterialStateProperty<BorderSide> side = MaterialStatePropertyAll<BorderSide>(BorderSide());
const MaterialStateProperty<OutlinedBorder> shape = MaterialStatePropertyAll<OutlinedBorder>(StadiumBorder());
const MaterialStateProperty<MouseCursor> mouseCursor = MaterialStatePropertyAll<MouseCursor>(SystemMouseCursors.forbidden);
const VisualDensity visualDensity = VisualDensity.compact;
const MaterialTapTargetSize tapTargetSize = MaterialTapTargetSize.shrinkWrap;
const Duration animationDuration = Duration(seconds: 1);
const bool enableFeedback = true;
const ButtonStyle style = ButtonStyle(
textStyle: textStyle,
backgroundColor: backgroundColor,
foregroundColor: foregroundColor,
overlayColor: overlayColor,
shadowColor: shadowColor,
surfaceTintColor: surfaceTintColor,
elevation: elevation,
padding: padding,
minimumSize: minimumSize,
fixedSize: fixedSize,
maximumSize: maximumSize,
iconColor: iconColor,
iconSize: iconSize,
side: side,
shape: shape,
mouseCursor: mouseCursor,
visualDensity: visualDensity,
tapTargetSize: tapTargetSize,
animationDuration: animationDuration,
enableFeedback: enableFeedback,
);
expect(
style,
const ButtonStyle().copyWith(
textStyle: textStyle,
backgroundColor: backgroundColor,
foregroundColor: foregroundColor,
overlayColor: overlayColor,
shadowColor: shadowColor,
surfaceTintColor: surfaceTintColor,
elevation: elevation,
padding: padding,
minimumSize: minimumSize,
fixedSize: fixedSize,
maximumSize: maximumSize,
iconColor: iconColor,
iconSize: iconSize,
side: side,
shape: shape,
mouseCursor: mouseCursor,
visualDensity: visualDensity,
tapTargetSize: tapTargetSize,
animationDuration: animationDuration,
enableFeedback: enableFeedback,
),
);
expect(
style,
const ButtonStyle().merge(style),
);
expect(
style.copyWith(),
style.merge(const ButtonStyle()),
);
});
test('ButtonStyle.lerp BorderSide', () {
// This is regression test for https://github.com/flutter/flutter/pull/78051
expect(ButtonStyle.lerp(null, null, 0), null);
expect(ButtonStyle.lerp(null, null, 0.5), null);
expect(ButtonStyle.lerp(null, null, 1), null);
const BorderSide blackSide = BorderSide();
const BorderSide whiteSide = BorderSide(color: Color(0xFFFFFFFF));
const BorderSide emptyBlackSide = BorderSide(width: 0, color: Color(0x00000000));
const ButtonStyle blackStyle = ButtonStyle(side: MaterialStatePropertyAll<BorderSide>(blackSide));
const ButtonStyle whiteStyle = ButtonStyle(side: MaterialStatePropertyAll<BorderSide>(whiteSide));
// MaterialState.all<Foo>(value) properties resolve to value
// for any set of MaterialStates.
const Set<MaterialState> states = <MaterialState>{ };
expect(ButtonStyle.lerp(blackStyle, blackStyle, 0)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, blackStyle, 0.5)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, blackStyle, 1)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, null, 0)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, null, 0.5)?.side?.resolve(states), BorderSide.lerp(blackSide, emptyBlackSide, 0.5));
expect(ButtonStyle.lerp(blackStyle, null, 1)?.side?.resolve(states), emptyBlackSide);
expect(ButtonStyle.lerp(null, blackStyle, 0)?.side?.resolve(states), emptyBlackSide);
expect(ButtonStyle.lerp(null, blackStyle, 0.5)?.side?.resolve(states), BorderSide.lerp(emptyBlackSide, blackSide, 0.5));
expect(ButtonStyle.lerp(null, blackStyle, 1)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, whiteStyle, 0)?.side?.resolve(states), blackSide);
expect(ButtonStyle.lerp(blackStyle, whiteStyle, 0.5)?.side?.resolve(states), BorderSide.lerp(blackSide, whiteSide, 0.5));
expect(ButtonStyle.lerp(blackStyle, whiteStyle, 1)?.side?.resolve(states), whiteSide);
});
}