blob: 40ba12980d8632c3b97d032c65c966598a96cdf9 [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/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/mock_canvas.dart';
import '../widgets/semantics_tester.dart';
void main() {
setUp(() {
debugResetSemanticsIdCounter();
});
testWidgets('MaterialButton defaults', (WidgetTester tester) async {
final Finder rawButtonMaterial = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(Material),
);
// Enabled MaterialButton
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: () { },
child: const Text('button'),
),
),
);
Material material = tester.widget<Material>(rawButtonMaterial);
expect(material.animationDuration, const Duration(milliseconds: 200));
expect(material.borderOnForeground, true);
expect(material.borderRadius, null);
expect(material.clipBehavior, Clip.none);
expect(material.color, null);
expect(material.elevation, 2.0);
expect(material.shadowColor, null);
expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0))));
expect(material.textStyle!.color, const Color(0xdd000000));
expect(material.textStyle!.fontFamily, 'Roboto');
expect(material.textStyle!.fontSize, 14);
expect(material.textStyle!.fontWeight, FontWeight.w500);
expect(material.type, MaterialType.transparency);
final Offset center = tester.getCenter(find.byType(MaterialButton));
await tester.startGesture(center);
await tester.pumpAndSettle();
// Only elevation changes when enabled and pressed.
material = tester.widget<Material>(rawButtonMaterial);
expect(material.animationDuration, const Duration(milliseconds: 200));
expect(material.borderOnForeground, true);
expect(material.borderRadius, null);
expect(material.clipBehavior, Clip.none);
expect(material.color, null);
expect(material.elevation, 8.0);
expect(material.shadowColor, null);
expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0))));
expect(material.textStyle!.color, const Color(0xdd000000));
expect(material.textStyle!.fontFamily, 'Roboto');
expect(material.textStyle!.fontSize, 14);
expect(material.textStyle!.fontWeight, FontWeight.w500);
expect(material.type, MaterialType.transparency);
// Disabled MaterialButton
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: null,
child: Text('button'),
),
),
);
material = tester.widget<Material>(rawButtonMaterial);
expect(material.animationDuration, const Duration(milliseconds: 200));
expect(material.borderOnForeground, true);
expect(material.borderRadius, null);
expect(material.clipBehavior, Clip.none);
expect(material.color, null);
expect(material.elevation, 0.0);
expect(material.shadowColor, null);
expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0))));
expect(material.textStyle!.color, const Color(0x61000000));
expect(material.textStyle!.fontFamily, 'Roboto');
expect(material.textStyle!.fontSize, 14);
expect(material.textStyle!.fontWeight, FontWeight.w500);
expect(material.type, MaterialType.transparency);
});
testWidgets('Does MaterialButton work with hover', (WidgetTester tester) async {
const Color hoverColor = Color(0xff001122);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
hoverColor: hoverColor,
onPressed: () { },
child: const Text('button'),
),
),
);
final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
await gesture.addPointer();
await gesture.moveTo(tester.getCenter(find.byType(MaterialButton)));
await tester.pumpAndSettle();
final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures');
expect(inkFeatures, paints..rect(color: hoverColor));
});
testWidgets('Does MaterialButton work with focus', (WidgetTester tester) async {
const Color focusColor = Color(0xff001122);
final FocusNode focusNode = FocusNode(debugLabel: 'MaterialButton Node');
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
focusColor: focusColor,
focusNode: focusNode,
onPressed: () { },
child: const Text('button'),
),
),
);
FocusManager.instance.highlightStrategy = FocusHighlightStrategy.alwaysTraditional;
focusNode.requestFocus();
await tester.pumpAndSettle();
final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures');
expect(inkFeatures, paints..rect(color: focusColor));
});
testWidgets('MaterialButton elevation and colors have proper precedence', (WidgetTester tester) async {
const double elevation = 10.0;
const double focusElevation = 11.0;
const double hoverElevation = 12.0;
const double highlightElevation = 13.0;
const Color focusColor = Color(0xff001122);
const Color hoverColor = Color(0xff112233);
const Color highlightColor = Color(0xff223344);
final Finder rawButtonMaterial = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(Material),
);
final FocusNode focusNode = FocusNode(debugLabel: 'MaterialButton Node');
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
focusColor: focusColor,
hoverColor: hoverColor,
highlightColor: highlightColor,
elevation: elevation,
focusElevation: focusElevation,
hoverElevation: hoverElevation,
highlightElevation: highlightElevation,
focusNode: focusNode,
onPressed: () { },
child: const Text('button'),
),
),
);
await tester.pumpAndSettle();
FocusManager.instance.highlightStrategy = FocusHighlightStrategy.alwaysTraditional;
// Base elevation
Material material = tester.widget<Material>(rawButtonMaterial);
expect(material.elevation, equals(elevation));
// Focus elevation overrides base
focusNode.requestFocus();
await tester.pumpAndSettle();
material = tester.widget<Material>(rawButtonMaterial);
RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures');
expect(inkFeatures, paints..rect(color: focusColor));
expect(focusNode.hasPrimaryFocus, isTrue);
expect(material.elevation, equals(focusElevation));
// Hover elevation overrides focus
TestGesture? gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
await gesture.addPointer();
addTearDown(() => gesture?.removePointer());
await gesture.moveTo(tester.getCenter(find.byType(MaterialButton)));
await tester.pumpAndSettle();
material = tester.widget<Material>(rawButtonMaterial);
inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures');
expect(inkFeatures, paints..rect(color: focusColor)..rect(color: hoverColor));
expect(material.elevation, equals(hoverElevation));
await gesture.removePointer();
gesture = null;
// Highlight elevation overrides hover
final TestGesture gesture2 = await tester.startGesture(tester.getCenter(find.byType(MaterialButton)));
addTearDown(gesture2.removePointer);
await tester.pumpAndSettle();
material = tester.widget<Material>(rawButtonMaterial);
inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures');
expect(inkFeatures, paints..rect(color: focusColor)..rect(color: highlightColor));
expect(material.elevation, equals(highlightElevation));
await gesture2.up();
});
testWidgets("MaterialButton's disabledColor takes precedence over its default disabled color.", (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/30012.
final Finder rawButtonMaterial = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(Material),
);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
disabledColor: Color(0xff00ff00),
onPressed: null,
child: Text('button'),
),
),
);
final Material material = tester.widget<Material>(rawButtonMaterial);
expect(material.color, const Color(0xff00ff00));
});
testWidgets('Default MaterialButton meets a11y contrast guidelines', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: MaterialButton(
child: const Text('MaterialButton'),
onPressed: () { },
),
),
),
),
);
// Default, not disabled.
await expectLater(tester, meetsGuideline(textContrastGuideline));
// Highlighted (pressed).
final Offset center = tester.getCenter(find.byType(MaterialButton));
await tester.startGesture(center);
await tester.pump(); // Start the splash and highlight animations.
await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way.
await expectLater(tester, meetsGuideline(textContrastGuideline));
},
skip: isBrowser, // https://github.com/flutter/flutter/issues/44115
);
testWidgets('MaterialButton gets focus when autofocus is set.', (WidgetTester tester) async {
final FocusNode focusNode = FocusNode(debugLabel: 'MaterialButton');
await tester.pumpWidget(
MaterialApp(
home: Center(
child: MaterialButton(
focusNode: focusNode,
onPressed: () {},
child: Container(width: 100, height: 100, color: const Color(0xffff0000)),
),
),
),
);
await tester.pump();
expect(focusNode.hasPrimaryFocus, isFalse);
await tester.pumpWidget(
MaterialApp(
home: Center(
child: MaterialButton(
autofocus: true,
focusNode: focusNode,
onPressed: () {},
child: Container(width: 100, height: 100, color: const Color(0xffff0000)),
),
),
),
);
await tester.pump();
expect(focusNode.hasPrimaryFocus, isTrue);
});
testWidgets('MaterialButton onPressed and onLongPress callbacks are correctly called when non-null', (WidgetTester tester) async {
bool wasPressed;
Finder materialButton;
Widget buildFrame({ VoidCallback? onPressed, VoidCallback? onLongPress }) {
return Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: onPressed,
onLongPress: onLongPress,
child: const Text('button'),
),
);
}
// onPressed not null, onLongPress null.
wasPressed = false;
await tester.pumpWidget(
buildFrame(onPressed: () { wasPressed = true; }),
);
materialButton = find.byType(MaterialButton);
expect(tester.widget<MaterialButton>(materialButton).enabled, true);
await tester.tap(materialButton);
expect(wasPressed, true);
// onPressed null, onLongPress not null.
wasPressed = false;
await tester.pumpWidget(
buildFrame(onLongPress: () { wasPressed = true; }),
);
materialButton = find.byType(MaterialButton);
expect(tester.widget<MaterialButton>(materialButton).enabled, true);
await tester.longPress(materialButton);
expect(wasPressed, true);
// onPressed null, onLongPress null.
await tester.pumpWidget(
buildFrame(),
);
materialButton = find.byType(MaterialButton);
expect(tester.widget<MaterialButton>(materialButton).enabled, false);
});
testWidgets('MaterialButton onPressed and onLongPress callbacks are distinctly recognized', (WidgetTester tester) async {
bool didPressButton = false;
bool didLongPressButton = false;
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: () {
didPressButton = true;
},
onLongPress: () {
didLongPressButton = true;
},
child: const Text('button'),
),
),
);
final Finder materialButton = find.byType(MaterialButton);
expect(tester.widget<MaterialButton>(materialButton).enabled, true);
expect(didPressButton, isFalse);
await tester.tap(materialButton);
expect(didPressButton, isTrue);
expect(didLongPressButton, isFalse);
await tester.longPress(materialButton);
expect(didLongPressButton, isTrue);
});
testWidgets('MaterialButton changes mouse cursor when hovered', (WidgetTester tester) async {
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MouseRegion(
cursor: SystemMouseCursors.forbidden,
child: MaterialButton(
onPressed: () {},
mouseCursor: SystemMouseCursors.text,
),
),
),
);
final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse, pointer: 1);
await gesture.addPointer(location: Offset.zero);
await tester.pump();
expect(RendererBinding.instance.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.text);
// Test default cursor
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MouseRegion(
cursor: SystemMouseCursors.forbidden,
child: MaterialButton(
onPressed: () {},
),
),
),
);
expect(RendererBinding.instance.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.click);
// Test default cursor when disabled
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: MouseRegion(
cursor: SystemMouseCursors.forbidden,
child: MaterialButton(
onPressed: null,
),
),
),
);
expect(RendererBinding.instance.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.basic);
});
// This test is very similar to the '...explicit splashColor and highlightColor' test
// in icon_button_test.dart. If you change this one, you may want to also change that one.
testWidgets('MaterialButton with explicit splashColor and highlightColor', (WidgetTester tester) async {
const Color directSplashColor = Color(0xFF000011);
const Color directHighlightColor = Color(0xFF000011);
Widget buttonWidget = Center(
child: MaterialButton(
splashColor: directSplashColor,
highlightColor: directHighlightColor,
onPressed: () { /* to make sure the button is enabled */ },
clipBehavior: Clip.antiAlias,
),
);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Theme(
data: ThemeData(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: buttonWidget,
),
),
);
final Offset center = tester.getCenter(find.byType(MaterialButton));
final TestGesture gesture = await tester.startGesture(center);
await tester.pump(); // start gesture
await tester.pump(const Duration(milliseconds: 200)); // wait for splash to be well under way
// Painter is translated to the center by the Center widget and not
// the Material widget.
const Rect expectedClipRect = Rect.fromLTRB(0.0, 0.0, 88.0, 36.0);
final Path expectedClipPath = Path()
..addRRect(RRect.fromRectAndRadius(
expectedClipRect,
const Radius.circular(2.0),
));
expect(
Material.of(tester.element(find.byType(InkWell))),
paints
..clipPath(pathMatcher: coversSameAreaAs(
expectedClipPath,
areaToCompare: expectedClipRect.inflate(10.0),
))
..circle(color: directSplashColor)
..rect(color: directHighlightColor),
);
const Color themeSplashColor1 = Color(0xFF001100);
const Color themeHighlightColor1 = Color(0xFF001100);
buttonWidget = Center(
child: MaterialButton(
onPressed: () { /* to make sure the button is enabled */ },
clipBehavior: Clip.antiAlias,
),
);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Theme(
data: ThemeData(
highlightColor: themeHighlightColor1,
splashColor: themeSplashColor1,
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: buttonWidget,
),
),
);
expect(
Material.of(tester.element(find.byType(InkWell))),
paints
..clipPath(pathMatcher: coversSameAreaAs(
expectedClipPath,
areaToCompare: expectedClipRect.inflate(10.0),
))
..circle(color: themeSplashColor1)
..rect(color: themeHighlightColor1),
);
const Color themeSplashColor2 = Color(0xFF002200);
const Color themeHighlightColor2 = Color(0xFF002200);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Theme(
data: ThemeData(
highlightColor: themeHighlightColor2,
splashColor: themeSplashColor2,
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: buttonWidget, // same widget, so does not get updated because of us
),
),
);
expect(
Material.of(tester.element(find.byType(InkWell))),
paints
..circle(color: themeSplashColor2)
..rect(color: themeHighlightColor2),
);
await gesture.up();
});
testWidgets('MaterialButton has no clip by default', (WidgetTester tester) async {
final GlobalKey buttonKey = GlobalKey();
final Widget buttonWidget = Center(
child: MaterialButton(
key: buttonKey,
onPressed: () { /* to make sure the button is enabled */ },
),
);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Theme(
data: ThemeData(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: buttonWidget,
),
),
);
expect(
tester.renderObject(find.byKey(buttonKey)),
paintsExactlyCountTimes(#clipPath, 0),
);
});
testWidgets('Disabled MaterialButton has same semantic size as enabled and exposes disabled semantics', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
const Rect expectedButtonSize = Rect.fromLTRB(0.0, 0.0, 116.0, 48.0);
// Button is in center of screen
final Matrix4 expectedButtonTransform = Matrix4.identity()
..translate(
TestSemantics.fullScreen.width / 2 - expectedButtonSize.width /2,
TestSemantics.fullScreen.height / 2 - expectedButtonSize.height /2,
);
// enabled button
await tester.pumpWidget(Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: MaterialButton(
child: const Text('Button'),
onPressed: () { /* to make sure the button is enabled */ },
),
),
));
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics.rootChild(
id: 1,
rect: expectedButtonSize,
transform: expectedButtonTransform,
label: 'Button',
actions: <SemanticsAction>[
SemanticsAction.tap,
],
flags: <SemanticsFlag>[
SemanticsFlag.hasEnabledState,
SemanticsFlag.isButton,
SemanticsFlag.isEnabled,
SemanticsFlag.isFocusable,
],
),
],
),
));
// disabled button
await tester.pumpWidget(const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: MaterialButton(
onPressed: null, // button is disabled
child: Text('Button'),
),
),
));
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics.rootChild(
id: 1,
rect: expectedButtonSize,
transform: expectedButtonTransform,
label: 'Button',
flags: <SemanticsFlag>[
SemanticsFlag.hasEnabledState,
SemanticsFlag.isButton,
SemanticsFlag.isFocusable,
],
),
],
),
));
semantics.dispose();
});
testWidgets('MaterialButton minWidth and height parameters', (WidgetTester tester) async {
Widget buildFrame({ double? minWidth, double? height, EdgeInsets padding = EdgeInsets.zero, Widget? child }) {
return Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: MaterialButton(
padding: padding,
minWidth: minWidth,
height: height,
onPressed: null,
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: child,
),
),
);
}
await tester.pumpWidget(buildFrame(minWidth: 8.0, height: 24.0));
expect(tester.getSize(find.byType(MaterialButton)), const Size(8.0, 24.0));
await tester.pumpWidget(buildFrame(minWidth: 8.0));
// Default minHeight constraint is 36, see RawMaterialButton.
expect(tester.getSize(find.byType(MaterialButton)), const Size(8.0, 36.0));
await tester.pumpWidget(buildFrame(height: 8.0));
// Default minWidth constraint is 88, see RawMaterialButton.
expect(tester.getSize(find.byType(MaterialButton)), const Size(88.0, 8.0));
await tester.pumpWidget(buildFrame());
expect(tester.getSize(find.byType(MaterialButton)), const Size(88.0, 36.0));
await tester.pumpWidget(buildFrame(padding: const EdgeInsets.all(4.0)));
expect(tester.getSize(find.byType(MaterialButton)), const Size(88.0, 36.0));
// Size is defined by the padding.
await tester.pumpWidget(
buildFrame(
minWidth: 0.0,
height: 0.0,
padding: const EdgeInsets.all(4.0),
),
);
expect(tester.getSize(find.byType(MaterialButton)), const Size(8.0, 8.0));
// Size is defined by the padded child.
await tester.pumpWidget(
buildFrame(
minWidth: 0.0,
height: 0.0,
padding: const EdgeInsets.all(4.0),
child: const SizedBox(width: 8.0, height: 8.0),
),
);
expect(tester.getSize(find.byType(MaterialButton)), const Size(16.0, 16.0));
// Size is defined by the minWidth, height constraints.
await tester.pumpWidget(
buildFrame(
minWidth: 18.0,
height: 18.0,
padding: const EdgeInsets.all(4.0),
child: const SizedBox(width: 8.0, height: 8.0),
),
);
expect(tester.getSize(find.byType(MaterialButton)), const Size(18.0, 18.0));
});
testWidgets('MaterialButton size is configurable by ThemeData.materialTapTargetSize', (WidgetTester tester) async {
final Key key1 = UniqueKey();
await tester.pumpWidget(
Theme(
data: ThemeData(materialTapTargetSize: MaterialTapTargetSize.padded),
child: Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: MaterialButton(
key: key1,
child: const SizedBox(width: 50.0, height: 8.0),
onPressed: () { },
),
),
),
),
);
expect(tester.getSize(find.byKey(key1)), const Size(88.0, 48.0));
final Key key2 = UniqueKey();
await tester.pumpWidget(
Theme(
data: ThemeData(materialTapTargetSize: MaterialTapTargetSize.shrinkWrap),
child: Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: MaterialButton(
key: key2,
child: const SizedBox(width: 50.0, height: 8.0),
onPressed: () { },
),
),
),
),
);
expect(tester.getSize(find.byKey(key2)), const Size(88.0, 36.0));
});
testWidgets('MaterialButton shape overrides ButtonTheme shape', (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/29146
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: () { },
shape: const StadiumBorder(),
child: const Text('button'),
),
),
);
final Finder rawButtonMaterial = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(Material),
);
expect(tester.widget<Material>(rawButtonMaterial).shape, const StadiumBorder());
});
testWidgets('MaterialButton responds to density changes.', (WidgetTester tester) async {
const Key key = Key('test');
const Key childKey = Key('test child');
Future<void> buildTest(VisualDensity visualDensity, {bool useText = false}) async {
return tester.pumpWidget(
MaterialApp(
home: Directionality(
textDirection: TextDirection.rtl,
child: Center(
child: MaterialButton(
visualDensity: visualDensity,
key: key,
onPressed: () {},
child: useText ? const Text('Text', key: childKey) : Container(key: childKey, width: 100, height: 100, color: const Color(0xffff0000)),
),
),
),
),
);
}
await buildTest(VisualDensity.standard);
final RenderBox box = tester.renderObject(find.byKey(key));
Rect childRect = tester.getRect(find.byKey(childKey));
await tester.pumpAndSettle();
expect(box.size, equals(const Size(132, 100)));
expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350)));
await buildTest(const VisualDensity(horizontal: 3.0, vertical: 3.0));
await tester.pumpAndSettle();
childRect = tester.getRect(find.byKey(childKey));
expect(box.size, equals(const Size(156, 124)));
expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350)));
await buildTest(const VisualDensity(horizontal: -3.0, vertical: -3.0));
await tester.pumpAndSettle();
childRect = tester.getRect(find.byKey(childKey));
expect(box.size, equals(const Size(108, 100)));
expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350)));
await buildTest(VisualDensity.standard, useText: true);
await tester.pumpAndSettle();
childRect = tester.getRect(find.byKey(childKey));
expect(box.size, equals(const Size(88, 48)));
expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0)));
await buildTest(const VisualDensity(horizontal: 3.0, vertical: 3.0), useText: true);
await tester.pumpAndSettle();
childRect = tester.getRect(find.byKey(childKey));
expect(box.size, equals(const Size(112, 60)));
expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0)));
await buildTest(const VisualDensity(horizontal: -3.0, vertical: -3.0), useText: true);
await tester.pumpAndSettle();
childRect = tester.getRect(find.byKey(childKey));
expect(box.size, equals(const Size(76, 36)));
expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0)));
});
testWidgets('disabledElevation is passed to RawMaterialButton', (WidgetTester tester) async {
const double disabledElevation = 16;
final Finder rawMaterialButtonFinder = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(RawMaterialButton),
);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
disabledElevation: disabledElevation,
onPressed: null, // disabled button
child: Text('button'),
),
),
);
final RawMaterialButton rawMaterialButton = tester.widget(rawMaterialButtonFinder);
expect(rawMaterialButton.disabledElevation, equals(disabledElevation));
});
testWidgets('MaterialButton.disabledElevation defaults to 0.0 when not provided', (WidgetTester tester) async {
final Finder rawMaterialButtonFinder = find.descendant(
of: find.byType(MaterialButton),
matching: find.byType(RawMaterialButton),
);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: MaterialButton(
onPressed: null, // disabled button
child: Text('button'),
),
),
);
final RawMaterialButton rawMaterialButton = tester.widget(rawMaterialButtonFinder);
expect(rawMaterialButton.disabledElevation, equals(0.0));
});
}