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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/services.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/mock_canvas.dart';
void main() {
testWidgets('The Ink widget renders a Container by default', (WidgetTester tester) async {
await tester.pumpWidget(
Material(
child: Ink(),
),
);
expect(tester.getSize(find.byType(Container)).height, 600.0);
expect(tester.getSize(find.byType(Container)).width, 800.0);
const double height = 150.0;
const double width = 200.0;
await tester.pumpWidget(
Material(
child: Center( // used to constrain to child's size
child: Ink(
height: height,
width: width,
),
),
),
);
await tester.pumpAndSettle();
expect(tester.getSize(find.byType(Container)).height, height);
expect(tester.getSize(find.byType(Container)).width, width);
});
testWidgets('The InkWell widget renders an ink splash', (WidgetTester tester) async {
const Color highlightColor = Color(0xAAFF0000);
const Color splashColor = Color(0xAA0000FF);
final BorderRadius borderRadius = BorderRadius.circular(6.0);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Container(
width: 200.0,
height: 60.0,
child: InkWell(
borderRadius: borderRadius,
highlightColor: highlightColor,
splashColor: splashColor,
onTap: () { },
),
),
),
),
),
);
final Offset center = tester.getCenter(find.byType(InkWell));
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
final RenderBox box = Material.of(tester.element(find.byType(InkWell)))! as RenderBox;
expect(
box,
paints
..translate(x: 0.0, y: 0.0)
..save()
..translate(x: 300.0, y: 270.0)
..clipRRect(rrect: RRect.fromLTRBR(0.0, 0.0, 200.0, 60.0, const Radius.circular(6.0)))
..circle(x: 100.0, y: 30.0, radius: 21.0, color: splashColor)
..restore()
..rrect(
rrect: RRect.fromLTRBR(300.0, 270.0, 500.0, 330.0, const Radius.circular(6.0)),
color: highlightColor,
),
);
await gesture.up();
});
testWidgets('The InkWell widget renders an ink ripple', (WidgetTester tester) async {
const Color highlightColor = Color(0xAAFF0000);
const Color splashColor = Color(0xB40000FF);
final BorderRadius borderRadius = BorderRadius.circular(6.0);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Container(
width: 100.0,
height: 100.0,
child: InkWell(
borderRadius: borderRadius,
highlightColor: highlightColor,
splashColor: splashColor,
onTap: () { },
radius: 100.0,
splashFactory: InkRipple.splashFactory,
),
),
),
),
),
);
final Offset tapDownOffset = tester.getTopLeft(find.byType(InkWell));
final Offset inkWellCenter = tester.getCenter(find.byType(InkWell));
//final TestGesture gesture = await tester.startGesture(tapDownOffset);
await tester.tapAt(tapDownOffset);
await tester.pump(); // start gesture
final RenderBox box = Material.of(tester.element(find.byType(InkWell)))! as RenderBox;
bool offsetsAreClose(Offset a, Offset b) => (a - b).distance < 1.0;
bool radiiAreClose(double a, double b) => (a - b).abs() < 1.0;
PaintPattern ripplePattern(Offset expectedCenter, double expectedRadius, int expectedAlpha) {
return paints
..translate(x: 0.0, y: 0.0)
..translate(x: tapDownOffset.dx, y: tapDownOffset.dy)
..something((Symbol method, List<dynamic> arguments) {
if (method != #drawCircle)
return false;
final Offset center = arguments[0] as Offset;
final double radius = arguments[1] as double;
final Paint paint = arguments[2] as Paint;
if (offsetsAreClose(center, expectedCenter) && radiiAreClose(radius, expectedRadius) && paint.color.alpha == expectedAlpha)
return true;
throw '''
Expected: center == $expectedCenter, radius == $expectedRadius, alpha == $expectedAlpha
Found: center == $center radius == $radius alpha == ${paint.color.alpha}''';
}
);
}
// Initially the ripple's center is where the tap occurred;
// ripplePattern always add a translation of tapDownOffset.
expect(box, ripplePattern(Offset.zero, 30.0, 0));
// The ripple fades in for 75ms. During that time its alpha is eased from
// 0 to the splashColor's alpha value and its center moves towards the
// center of the ink well.
await tester.pump(const Duration(milliseconds: 50));
expect(box, ripplePattern(const Offset(17.0, 17.0), 56.0, 120));
// At 75ms the ripple has fade in: it's alpha matches the splashColor's
// alpha and its center has moved closer to the ink well's center.
await tester.pump(const Duration(milliseconds: 25));
expect(box, ripplePattern(const Offset(29.0, 29.0), 73.0, 180));
// At this point the splash radius has expanded to its limit: 5 past the
// ink well's radius parameter. The splash center has moved to its final
// location at the inkwell's center and the fade-out is about to start.
// The fade-out begins at 225ms = 50ms + 25ms + 150ms.
await tester.pump(const Duration(milliseconds: 150));
expect(box, ripplePattern(inkWellCenter - tapDownOffset, 105.0, 180));
// After another 150ms the fade-out is complete.
await tester.pump(const Duration(milliseconds: 150));
expect(box, ripplePattern(inkWellCenter - tapDownOffset, 105.0, 0));
});
testWidgets('Does the Ink widget render anything', (WidgetTester tester) async {
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Ink(
color: Colors.blue,
width: 200.0,
height: 200.0,
child: InkWell(
splashColor: Colors.green,
onTap: () { },
),
),
),
),
),
);
final Offset center = tester.getCenter(find.byType(InkWell));
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
final RenderBox box = Material.of(tester.element(find.byType(InkWell)))! as RenderBox;
expect(
box,
paints
..rect(rect: const Rect.fromLTRB(300.0, 200.0, 500.0, 400.0), color: Color(Colors.blue.value))
..circle(color: Color(Colors.green.value)),
);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Ink(
color: Colors.red,
width: 200.0,
height: 200.0,
child: InkWell(
splashColor: Colors.green,
onTap: () { },
),
),
),
),
),
);
expect(Material.of(tester.element(find.byType(InkWell))), same(box));
expect(
box,
paints
..rect(rect: const Rect.fromLTRB(300.0, 200.0, 500.0, 400.0), color: Color(Colors.red.value))
..circle(color: Color(Colors.green.value)),
);
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: InkWell( // this is at a different depth in the tree so it's now a new InkWell
splashColor: Colors.green,
onTap: () { },
),
),
),
),
);
expect(Material.of(tester.element(find.byType(InkWell))), same(box));
expect(box, isNot(paints..rect()));
expect(box, isNot(paints..circle()));
await gesture.up();
});
testWidgets('The InkWell widget renders an SelectAction or ActivateAction-induced ink ripple', (WidgetTester tester) async {
const Color highlightColor = Color(0xAAFF0000);
const Color splashColor = Color(0xB40000FF);
final BorderRadius borderRadius = BorderRadius.circular(6.0);
final FocusNode focusNode = FocusNode(debugLabel: 'Test Node');
Future<void> buildTest(Intent intent) async {
return await tester.pumpWidget(
Shortcuts(
shortcuts: <LogicalKeySet, Intent>{
LogicalKeySet(LogicalKeyboardKey.space): intent,
},
child: Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Container(
width: 100.0,
height: 100.0,
child: InkWell(
borderRadius: borderRadius,
highlightColor: highlightColor,
splashColor: splashColor,
focusNode: focusNode,
onTap: () { },
radius: 100.0,
splashFactory: InkRipple.splashFactory,
),
),
),
),
),
),
);
}
await buildTest(const ActivateIntent());
focusNode.requestFocus();
await tester.pumpAndSettle();
final Offset topLeft = tester.getTopLeft(find.byType(InkWell));
final Offset inkWellCenter = tester.getCenter(find.byType(InkWell)) - topLeft;
bool offsetsAreClose(Offset a, Offset b) => (a - b).distance < 1.0;
bool radiiAreClose(double a, double b) => (a - b).abs() < 1.0;
PaintPattern ripplePattern(double expectedRadius, int expectedAlpha) {
return paints
..translate(x: 0.0, y: 0.0)
..translate(x: topLeft.dx, y: topLeft.dy)
..something((Symbol method, List<dynamic> arguments) {
if (method != #drawCircle) {
return false;
}
final Offset center = arguments[0] as Offset;
final double radius = arguments[1] as double;
final Paint paint = arguments[2] as Paint;
if (offsetsAreClose(center, inkWellCenter) &&
radiiAreClose(radius, expectedRadius) &&
paint.color.alpha == expectedAlpha) {
return true;
}
throw '''
Expected: center == $inkWellCenter, radius == $expectedRadius, alpha == $expectedAlpha
Found: center == $center radius == $radius alpha == ${paint.color.alpha}''';
},
);
}
await buildTest(const ActivateIntent());
await tester.pumpAndSettle();
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pump();
final RenderBox box = Material.of(tester.element(find.byType(InkWell)))! as RenderBox;
// ripplePattern always add a translation of topLeft.
expect(box, ripplePattern(30.0, 0));
// The ripple fades in for 75ms. During that time its alpha is eased from
// 0 to the splashColor's alpha value.
await tester.pump(const Duration(milliseconds: 50));
expect(box, ripplePattern(56.0, 120));
// At 75ms the ripple has faded in: it's alpha matches the splashColor's
// alpha.
await tester.pump(const Duration(milliseconds: 25));
expect(box, ripplePattern(73.0, 180));
// At this point the splash radius has expanded to its limit: 5 past the
// ink well's radius parameter. The fade-out is about to start.
// The fade-out begins at 225ms = 50ms + 25ms + 150ms.
await tester.pump(const Duration(milliseconds: 150));
expect(box, ripplePattern(105.0, 180));
// After another 150ms the fade-out is complete.
await tester.pump(const Duration(milliseconds: 150));
expect(box, ripplePattern(105.0, 0));
});
testWidgets('Cancel an InkRipple that was disposed when its animation ended', (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/14391
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Container(
width: 100.0,
height: 100.0,
child: InkWell(
onTap: () { },
radius: 100.0,
splashFactory: InkRipple.splashFactory,
),
),
),
),
),
);
final Offset tapDownOffset = tester.getTopLeft(find.byType(InkWell));
await tester.tapAt(tapDownOffset);
await tester.pump(); // start splash
await tester.pump(const Duration(milliseconds: 375)); // _kFadeOutDuration, in_ripple.dart
final TestGesture gesture = await tester.startGesture(tapDownOffset);
await tester.pump(); // start gesture
await gesture.moveTo(const Offset(0.0, 0.0));
await gesture.up(); // generates a tap cancel
await tester.pumpAndSettle();
});
testWidgets('Cancel an InkRipple that was disposed when its animation ended', (WidgetTester tester) async {
const Color highlightColor = Color(0xAAFF0000);
const Color splashColor = Color(0xB40000FF);
// Regression test for https://github.com/flutter/flutter/issues/14391
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: Center(
child: Container(
width: 100.0,
height: 100.0,
child: InkWell(
splashColor: splashColor,
highlightColor: highlightColor,
onTap: () { },
radius: 100.0,
splashFactory: InkRipple.splashFactory,
),
),
),
),
),
);
final Offset tapDownOffset = tester.getTopLeft(find.byType(InkWell));
await tester.tapAt(tapDownOffset);
await tester.pump(); // start splash
// No delay here so _fadeInController.value=1.0 (InkRipple.dart)
// Generate a tap cancel; Will cancel the ink splash before it started
final TestGesture gesture = await tester.startGesture(tapDownOffset);
await tester.pump(); // start gesture
await gesture.moveTo(const Offset(0.0, 0.0));
await gesture.up(); // generates a tap cancel
final RenderBox box = Material.of(tester.element(find.byType(InkWell)))! as RenderBox;
expect(box, paints..everything((Symbol method, List<dynamic> arguments) {
if (method != #drawCircle)
return true;
final Paint paint = arguments[2] as Paint;
if (paint.color.alpha == 0)
return true;
throw 'Expected: paint.color.alpha == 0, found: ${paint.color.alpha}';
}));
});
}