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7fb7192304
Adds tests for `relative_positioned_transition`, `positioned_transition`, `sliver_fade_transition`, `align_transition`, `animated_builder`, `rotation_transition`, `animated_widget`, `slide_transition`, `listenable_builder`, `scale_transition`, `default_text_style_transition`, `decorated_box_transition`, `size_transition` api examples. Makes double type in the `align_transition` example explicit. A test for `fade_transition` is already in currently open #148178. Part of #130459.
45 lines
1.7 KiB
Dart
45 lines
1.7 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 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_api_samples/widgets/transitions/sliver_fade_transition.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Shows color list in transition', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFadeTransitionExampleApp());
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expect(find.text('SliverFadeTransition Sample'), findsOneWidget);
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expect(find.byType(SliverFadeTransition), findsOneWidget);
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expect(find.byType(CustomScrollView), findsOneWidget);
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expect(find.byWidgetPredicate(
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(Widget widget) => widget is Container &&
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widget.color == Colors.indigo[200]
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), findsNWidgets(3));
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expect(find.byWidgetPredicate(
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(Widget widget) => widget is Container &&
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widget.color == Colors.orange[200]
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), findsNWidgets(2));
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});
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testWidgets('Animates repeatedly every second', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFadeTransitionExampleApp());
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expect(
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tester.renderObject(find.byType(SliverFadeTransition)),
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isA<RenderSliverAnimatedOpacity>()
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.having((RenderSliverAnimatedOpacity obj) => obj.opacity.value, 'opacity', 0.0)
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);
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await tester.pump(const Duration(seconds: 1));
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await tester.pump();
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expect(
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tester.renderObject(find.byType(SliverFadeTransition)),
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isA<RenderSliverAnimatedOpacity>()
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.having((RenderSliverAnimatedOpacity obj) => obj.opacity.value, 'opacity', 1.0)
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);
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});
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}
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