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f9c130abf0
Contributes to https://github.com/flutter/flutter/issues/130459 It adds a test for - `examples/api/lib/widgets/interactive_viewer/interactive_viewer.0.dart`
64 lines
2.1 KiB
Dart
64 lines
2.1 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_api_samples/widgets/interactive_viewer/interactive_viewer.0.dart'
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as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Has correct items on screen', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.InteractiveViewerExampleApp(),
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);
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expect(find.widgetWithText(AppBar, 'InteractiveViewer Sample'), findsOne);
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expect(find.byType(InteractiveViewer), findsOne);
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expect(
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tester.getRect(find.byType(Container)),
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rectMoreOrLessEquals(const Rect.fromLTRB(0.0, 56.0, 800.0, 600.0)),
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);
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await tester.drag(find.byType(Container), const Offset(20, 20));
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// Pans.
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const Offset panStart = Offset(400.0, 300.0);
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final Offset panEnd = panStart + const Offset(20.0, 20.0);
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final TestGesture gesture = await tester.startGesture(panStart);
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await tester.pump();
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await gesture.moveTo(panEnd);
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await tester.pump();
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await gesture.up();
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await tester.pumpAndSettle();
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expect(
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tester.getRect(find.byType(Container)),
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rectMoreOrLessEquals(const Rect.fromLTRB(20.0, 76.0, 820.0, 620.0)),
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);
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// Zooms.
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const Offset scaleStart1 = Offset(400.0, 300.0);
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final Offset scaleStart2 = scaleStart1 + const Offset(10.0, 0.0);
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final Offset scaleEnd1 = scaleStart1 - const Offset(10.0, 0.0);
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final Offset scaleEnd2 = scaleStart2 + const Offset(10.0, 0.0);
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final TestGesture gesture1 = await tester.createGesture();
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final TestGesture gesture2 = await tester.createGesture();
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await gesture1.down(scaleStart1);
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await gesture2.down(scaleStart2);
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await tester.pump();
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await gesture1.moveTo(scaleEnd1);
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await gesture2.moveTo(scaleEnd2);
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await tester.pump();
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await gesture1.up();
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await gesture2.up();
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await tester.pumpAndSettle();
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expect(
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tester.getRect(find.byType(Container)),
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rectMoreOrLessEquals(const Rect.fromLTRB(-203.0, -58.4, 1077.0, 812.0)),
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);
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});
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}
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