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43 lines
1.8 KiB
Dart
43 lines
1.8 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/rendering/growth_direction/growth_direction.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('Example app has GrowthDirections represented', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.ExampleApp(),
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);
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final RenderViewport viewport = tester.renderObject(find.byType(Viewport));
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expect(find.text('AxisDirection.down'), findsNWidgets(2));
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expect(find.text('Axis.vertical'), findsNWidgets(2));
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expect(find.text('GrowthDirection.forward'), findsOneWidget);
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expect(find.text('GrowthDirection.reverse'), findsOneWidget);
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expect(find.byIcon(Icons.arrow_upward_rounded), findsNWidgets(2));
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expect(find.byIcon(Icons.arrow_downward_rounded), findsNWidgets(2));
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expect(viewport.axisDirection, AxisDirection.down);
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expect(viewport.anchor, 0.5);
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expect(viewport.center, isNotNull);
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await tester.tap(
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find.byWidgetPredicate((Widget widget) {
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return widget is Radio<AxisDirection> && widget.value == AxisDirection.up;
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})
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);
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await tester.pumpAndSettle();
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expect(find.text('AxisDirection.up'), findsNWidgets(2));
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expect(find.text('Axis.vertical'), findsNWidgets(2));
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expect(find.text('GrowthDirection.forward'), findsOneWidget);
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expect(find.text('GrowthDirection.reverse'), findsOneWidget);
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expect(find.byIcon(Icons.arrow_upward_rounded), findsNWidgets(2));
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expect(find.byIcon(Icons.arrow_downward_rounded), findsNWidgets(2));
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expect(viewport.axisDirection, AxisDirection.up);
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});
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}
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