412 lines
14 KiB
Dart
412 lines
14 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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void main() {
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testWidgets('toString control test', (WidgetTester tester) async {
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const Widget widget = FadeTransition(
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opacity: kAlwaysCompleteAnimation,
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child: Text('Ready', textDirection: TextDirection.ltr),
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);
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expect(widget.toString, isNot(throwsException));
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});
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group('DecoratedBoxTransition test', () {
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final DecorationTween decorationTween = DecorationTween(
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begin: BoxDecoration(
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color: const Color(0xFFFFFFFF),
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border: Border.all(
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color: const Color(0xFF000000),
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style: BorderStyle.solid,
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width: 4.0,
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),
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borderRadius: BorderRadius.zero,
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shape: BoxShape.rectangle,
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boxShadow: const <BoxShadow> [BoxShadow(
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color: Color(0x66000000),
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blurRadius: 10.0,
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spreadRadius: 4.0,
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)],
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),
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end: BoxDecoration(
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color: const Color(0xFF000000),
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border: Border.all(
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color: const Color(0xFF202020),
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style: BorderStyle.solid,
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width: 1.0,
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),
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borderRadius: BorderRadius.circular(10.0),
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shape: BoxShape.rectangle,
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// No shadow.
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),
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);
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AnimationController controller;
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setUp(() {
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controller = AnimationController(vsync: const TestVSync());
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});
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testWidgets('decoration test', (WidgetTester tester) async {
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final DecoratedBoxTransition transitionUnderTest =
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DecoratedBoxTransition(
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decoration: decorationTween.animate(controller),
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child: const Text(
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'Doesn\'t matter',
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textDirection: TextDirection.ltr,
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),
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);
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await tester.pumpWidget(transitionUnderTest);
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RenderDecoratedBox actualBox = tester.renderObject(find.byType(DecoratedBox));
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BoxDecoration actualDecoration = actualBox.decoration as BoxDecoration;
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expect(actualDecoration.color, const Color(0xFFFFFFFF));
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expect(actualDecoration.boxShadow[0].blurRadius, 10.0);
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expect(actualDecoration.boxShadow[0].spreadRadius, 4.0);
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expect(actualDecoration.boxShadow[0].color, const Color(0x66000000));
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controller.value = 0.5;
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await tester.pump();
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actualBox = tester.renderObject(find.byType(DecoratedBox));
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actualDecoration = actualBox.decoration as BoxDecoration;
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expect(actualDecoration.color, const Color(0xFF7F7F7F));
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expect(actualDecoration.border, isA<Border>());
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final Border border = actualDecoration.border as Border;
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expect(border.left.width, 2.5);
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expect(border.left.style, BorderStyle.solid);
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expect(border.left.color, const Color(0xFF101010));
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expect(actualDecoration.borderRadius, BorderRadius.circular(5.0));
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expect(actualDecoration.shape, BoxShape.rectangle);
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expect(actualDecoration.boxShadow[0].blurRadius, 5.0);
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expect(actualDecoration.boxShadow[0].spreadRadius, 2.0);
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// Scaling a shadow doesn't change the color.
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expect(actualDecoration.boxShadow[0].color, const Color(0x66000000));
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controller.value = 1.0;
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await tester.pump();
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actualBox = tester.renderObject(find.byType(DecoratedBox));
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actualDecoration = actualBox.decoration as BoxDecoration;
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expect(actualDecoration.color, const Color(0xFF000000));
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expect(actualDecoration.boxShadow, null);
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});
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testWidgets('animations work with curves test', (WidgetTester tester) async {
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final Animation<Decoration> curvedDecorationAnimation =
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decorationTween.animate(CurvedAnimation(
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parent: controller,
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curve: Curves.easeOut,
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));
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final DecoratedBoxTransition transitionUnderTest = DecoratedBoxTransition(
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decoration: curvedDecorationAnimation,
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position: DecorationPosition.foreground,
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child: const Text(
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'Doesn\'t matter',
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textDirection: TextDirection.ltr,
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),
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);
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await tester.pumpWidget(transitionUnderTest);
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RenderDecoratedBox actualBox = tester.renderObject(find.byType(DecoratedBox));
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BoxDecoration actualDecoration = actualBox.decoration as BoxDecoration;
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expect(actualDecoration.color, const Color(0xFFFFFFFF));
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expect(actualDecoration.boxShadow[0].blurRadius, 10.0);
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expect(actualDecoration.boxShadow[0].spreadRadius, 4.0);
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expect(actualDecoration.boxShadow[0].color, const Color(0x66000000));
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controller.value = 0.5;
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await tester.pump();
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actualBox = tester.renderObject(find.byType(DecoratedBox));
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actualDecoration = actualBox.decoration as BoxDecoration;
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// Same as the test above but the values should be much closer to the
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// tween's end values given the easeOut curve.
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expect(actualDecoration.color, const Color(0xFF505050));
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expect(actualDecoration.border, isA<Border>());
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final Border border = actualDecoration.border as Border;
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expect(border.left.width, closeTo(1.9, 0.1));
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expect(border.left.style, BorderStyle.solid);
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expect(border.left.color, const Color(0xFF151515));
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expect(actualDecoration.borderRadius.resolve(TextDirection.ltr).topLeft.x, closeTo(6.8, 0.1));
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expect(actualDecoration.shape, BoxShape.rectangle);
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expect(actualDecoration.boxShadow[0].blurRadius, closeTo(3.1, 0.1));
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expect(actualDecoration.boxShadow[0].spreadRadius, closeTo(1.2, 0.1));
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// Scaling a shadow doesn't change the color.
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expect(actualDecoration.boxShadow[0].color, const Color(0x66000000));
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});
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});
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testWidgets('AlignTransition animates', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<Alignment> alignmentTween = AlignmentTween(
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begin: const Alignment(-1.0, 0.0),
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end: const Alignment(1.0, 1.0),
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).animate(controller);
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final Widget widget = AlignTransition(
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alignment: alignmentTween,
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child: const Text('Ready', textDirection: TextDirection.ltr),
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);
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await tester.pumpWidget(widget);
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final RenderPositionedBox actualPositionedBox = tester.renderObject(find.byType(Align));
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Alignment actualAlignment = actualPositionedBox.alignment as Alignment;
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expect(actualAlignment, const Alignment(-1.0, 0.0));
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controller.value = 0.5;
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await tester.pump();
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actualAlignment = actualPositionedBox.alignment as Alignment;
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expect(actualAlignment, const Alignment(0.0, 0.5));
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});
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testWidgets('AlignTransition keeps width and height factors', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<Alignment> alignmentTween = AlignmentTween(
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begin: const Alignment(-1.0, 0.0),
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end: const Alignment(1.0, 1.0),
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).animate(controller);
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final Widget widget = AlignTransition(
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alignment: alignmentTween,
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child: const Text('Ready', textDirection: TextDirection.ltr),
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widthFactor: 0.3,
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heightFactor: 0.4,
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);
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await tester.pumpWidget(widget);
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final Align actualAlign = tester.widget(find.byType(Align));
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expect(actualAlign.widthFactor, 0.3);
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expect(actualAlign.heightFactor, 0.4);
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});
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testWidgets('SizeTransition clamps negative size factors - vertical axis', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<double> animation = Tween<double>(begin: -1.0, end: 1.0).animate(controller);
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final Widget widget = Directionality(
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textDirection: TextDirection.ltr,
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child: SizeTransition(
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axis: Axis.vertical,
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sizeFactor: animation,
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child: const Text('Ready'),
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),
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);
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await tester.pumpWidget(widget);
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final RenderPositionedBox actualPositionedBox = tester.renderObject(find.byType(Align));
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expect(actualPositionedBox.heightFactor, 0.0);
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controller.value = 0.0;
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await tester.pump();
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expect(actualPositionedBox.heightFactor, 0.0);
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controller.value = 0.75;
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await tester.pump();
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expect(actualPositionedBox.heightFactor, 0.5);
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controller.value = 1.0;
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await tester.pump();
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expect(actualPositionedBox.heightFactor, 1.0);
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});
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testWidgets('SizeTransition clamps negative size factors - horizontal axis', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<double> animation = Tween<double>(begin: -1.0, end: 1.0).animate(controller);
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final Widget widget = Directionality(
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textDirection: TextDirection.ltr,
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child: SizeTransition(
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axis: Axis.horizontal,
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sizeFactor: animation,
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child: const Text('Ready'),
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),
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);
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await tester.pumpWidget(widget);
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final RenderPositionedBox actualPositionedBox = tester.renderObject(find.byType(Align));
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expect(actualPositionedBox.widthFactor, 0.0);
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controller.value = 0.0;
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await tester.pump();
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expect(actualPositionedBox.widthFactor, 0.0);
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controller.value = 0.75;
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await tester.pump();
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expect(actualPositionedBox.widthFactor, 0.5);
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controller.value = 1.0;
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await tester.pump();
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expect(actualPositionedBox.widthFactor, 1.0);
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});
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testWidgets('RotationTransition animates', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Widget widget = RotationTransition(
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alignment: Alignment.topRight,
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turns: controller,
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child: const Text(
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'Rotation',
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textDirection: TextDirection.ltr,
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),
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);
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await tester.pumpWidget(widget);
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Transform actualRotatedBox = tester.widget(find.byType(Transform));
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Matrix4 actualTurns = actualRotatedBox.transform;
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expect(actualTurns, equals(Matrix4.rotationZ(0.0)));
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controller.value = 0.5;
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await tester.pump();
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actualRotatedBox = tester.widget(find.byType(Transform));
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actualTurns = actualRotatedBox.transform;
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expect(actualTurns, Matrix4.rotationZ(math.pi));
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controller.value = 0.75;
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await tester.pump();
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actualRotatedBox = tester.widget(find.byType(Transform));
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actualTurns = actualRotatedBox.transform;
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expect(actualTurns, Matrix4.rotationZ(math.pi * 1.5));
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});
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testWidgets('RotationTransition maintains chosen alignment during animation', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Widget widget = RotationTransition(
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alignment: Alignment.topRight,
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turns: controller,
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child: const Text('Rotation', textDirection: TextDirection.ltr),
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);
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await tester.pumpWidget(widget);
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RotationTransition actualRotatedBox = tester.widget(find.byType(RotationTransition));
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Alignment actualAlignment = actualRotatedBox.alignment;
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expect(actualAlignment, const Alignment(1.0, -1.0));
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controller.value = 0.5;
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await tester.pump();
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actualRotatedBox = tester.widget(find.byType(RotationTransition));
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actualAlignment = actualRotatedBox.alignment;
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expect(actualAlignment, const Alignment(1.0, -1.0));
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});
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group('FadeTransition', () {
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double _getOpacity(WidgetTester tester, String textValue) {
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final FadeTransition opacityWidget = tester.widget<FadeTransition>(
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find.ancestor(
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of: find.text(textValue),
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matching: find.byType(FadeTransition),
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).first,
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);
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return opacityWidget.opacity.value;
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}
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testWidgets('animates', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<double> animation = Tween<double>(begin: 0.0, end: 1.0).animate(controller);
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final Widget widget = Directionality(
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textDirection: TextDirection.ltr,
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child: FadeTransition(
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opacity: animation,
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child: const Text('Fade In'),
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),
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);
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await tester.pumpWidget(widget);
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expect(_getOpacity(tester, 'Fade In'), 0.0);
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controller.value = 0.25;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.25);
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controller.value = 0.5;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.5);
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controller.value = 0.75;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.75);
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controller.value = 1.0;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 1.0);
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});
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});
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group('SliverFadeTransition', () {
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double _getOpacity(WidgetTester tester, String textValue) {
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final SliverFadeTransition opacityWidget = tester.widget<SliverFadeTransition>(
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find.ancestor(
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of: find.text(textValue),
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matching: find.byType(SliverFadeTransition),
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).first,
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);
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return opacityWidget.opacity.value;
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}
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testWidgets('animates', (WidgetTester tester) async {
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final AnimationController controller = AnimationController(vsync: const TestVSync());
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final Animation<double> animation = Tween<double>(begin: 0.0, end: 1.0).animate(controller);
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final Widget widget = Localizations(
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locale: const Locale('en', 'us'),
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delegates: const <LocalizationsDelegate<dynamic>>[
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DefaultWidgetsLocalizations.delegate,
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DefaultMaterialLocalizations.delegate,
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],
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child: Directionality(
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textDirection: TextDirection.ltr,
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child: MediaQuery(
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data: const MediaQueryData(),
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child: CustomScrollView(
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slivers: <Widget>[
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SliverFadeTransition(
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opacity: animation,
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sliver: const SliverToBoxAdapter(
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child: Text('Fade In'),
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),
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),
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]
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)
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)
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)
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);
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await tester.pumpWidget(widget);
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expect(_getOpacity(tester, 'Fade In'), 0.0);
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controller.value = 0.25;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.25);
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controller.value = 0.5;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.5);
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controller.value = 0.75;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 0.75);
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controller.value = 1.0;
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await tester.pump();
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expect(_getOpacity(tester, 'Fade In'), 1.0);
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});
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});
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}
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