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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_test/flutter_test.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
void main() {
testWidgets('AnimatedPadding.debugFillProperties', (WidgetTester tester) async {
final AnimatedPadding padding = AnimatedPadding(
padding: const EdgeInsets.all(7.0),
curve: Curves.ease,
duration: const Duration(milliseconds: 200),
);
expect(padding, hasOneLineDescription);
});
testWidgets('AnimatedPadding padding visual-to-directional animation', (WidgetTester tester) async {
final Key target = UniqueKey();
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.rtl,
child: AnimatedPadding(
duration: const Duration(milliseconds: 200),
padding: const EdgeInsets.only(right: 50.0),
child: SizedBox.expand(key: target),
),
),
);
expect(tester.getSize(find.byKey(target)), const Size(750.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(750.0, 0.0));
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.rtl,
child: AnimatedPadding(
duration: const Duration(milliseconds: 200),
padding: const EdgeInsetsDirectional.only(start: 100.0),
child: SizedBox.expand(key: target),
),
),
);
expect(tester.getSize(find.byKey(target)), const Size(750.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(750.0, 0.0));
await tester.pump(const Duration(milliseconds: 100));
expect(tester.getSize(find.byKey(target)), const Size(725.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(725.0, 0.0));
await tester.pump(const Duration(milliseconds: 500));
expect(tester.getSize(find.byKey(target)), const Size(700.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(700.0, 0.0));
});
testWidgets('AnimatedPadding animated padding clamped to positive values', (WidgetTester tester) async {
final Key target = UniqueKey();
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.rtl,
child: AnimatedPadding(
curve: Curves.easeInOutBack, // will cause negative padding during overshoot
duration: const Duration(milliseconds: 200),
padding: const EdgeInsets.only(right: 50.0),
child: SizedBox.expand(key: target),
),
),
);
expect(tester.getSize(find.byKey(target)), const Size(750.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(750.0, 0.0));
await tester.pumpWidget(
Directionality(
textDirection: TextDirection.rtl,
child: AnimatedPadding(
curve: Curves.easeInOutBack,
duration: const Duration(milliseconds: 200),
padding: const EdgeInsets.only(right: 0.0),
child: SizedBox.expand(key: target),
),
),
);
expect(tester.getSize(find.byKey(target)), const Size(750.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(750.0, 0.0));
await tester.pump(const Duration(milliseconds: 128));
// Curve would have made the padding negative a this point if it is not clamped.
expect(tester.getSize(find.byKey(target)), const Size(800.0, 600.0));
expect(tester.getTopRight(find.byKey(target)), const Offset(800.0, 0.0));
});
}