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Add test for interactive_viewer.transformation_controller.0.dart (#157986)

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Contributes to https://github.com/flutter/flutter/issues/130459

It adds a test for
- `examples/api/lib/widgets/interactive_viewer/interactive_viewer.transformation_controller.0.dart`
This commit is contained in:
Valentin Vignal
2024-11-01 18:37:59 +08:00
committed by GitHub
parent 4f8ab5bfe2
commit fd259714d4
3 changed files with 80 additions and 1 deletions
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1
examples/api/lib/widgets/interactive_viewer/interactive_viewer.transformation_controller.0.dart
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@@ -81,6 +81,7 @@ class _TransformationControllerExampleState extends State<TransformationControll
@override
void dispose() {
_controllerReset.dispose();
_transformationController.dispose();
super.dispose();
}

79
examples/api/test/widgets/interactive_viewer/interactive_viewer.transformation_controller.0_test.dart Normal file
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@@ -0,0 +1,79 @@
// 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/material.dart';
import 'package:flutter_api_samples/widgets/interactive_viewer/interactive_viewer.transformation_controller.0.dart'
as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('The reset button resets the view with an animation', (WidgetTester tester) async {
await tester.pumpWidget(
const example.TransformationControllerExampleApp(),
);
expect(find.widgetWithText(AppBar, 'Controller demo'), findsOne);
expect(find.byType(InteractiveViewer), findsOne);
expect(
tester.getRect(find.byType(Container).first),
rectMoreOrLessEquals(const Rect.fromLTRB(0.0, 56.0, 800.0, 535.0)),
);
await tester.drag(find.byType(Container).first, const Offset(20, 20));
// Pans.
const Offset panStart = Offset(400.0, 300.0);
final Offset panEnd = panStart + const Offset(20.0, 20.0);
final TestGesture gesture = await tester.startGesture(panStart);
await tester.pump();
await gesture.moveTo(panEnd);
await tester.pump();
await gesture.up();
await tester.pumpAndSettle();
expect(
tester.getRect(find.byType(Container).first),
rectMoreOrLessEquals(const Rect.fromLTRB(40.0, 96.0, 840.0, 575.0)),
);
// Zooms.
const Offset scaleStart1 = Offset(400.0, 300.0);
final Offset scaleStart2 = scaleStart1 + const Offset(10.0, 0.0);
final Offset scaleEnd1 = scaleStart1 - const Offset(10.0, 0.0);
final Offset scaleEnd2 = scaleStart2 + const Offset(10.0, 0.0);
final TestGesture gesture1 = await tester.createGesture();
final TestGesture gesture2 = await tester.createGesture();
await gesture1.down(scaleStart1);
await gesture2.down(scaleStart2);
await tester.pump();
await gesture1.moveTo(scaleEnd1);
await gesture2.moveTo(scaleEnd2);
await tester.pump();
await gesture1.up();
await gesture2.up();
await tester.pumpAndSettle();
expect(
tester.getRect(find.byType(Container).first),
rectMoreOrLessEquals(const Rect.fromLTRB(45.0, 96.0, 845.0, 575.0)),
);
await tester.tap(find.widgetWithIcon(IconButton, Icons.replay));
await tester.pump();
await tester.pump(const Duration(milliseconds: 200));
expect(
tester.getRect(find.byType(Container).first),
rectMoreOrLessEquals(const Rect.fromLTRB(22.5, 76.0, 822.5, 555.0)),
);
await tester.pump(const Duration(milliseconds: 200));
expect(
tester.getRect(find.byType(Container).first),
rectMoreOrLessEquals(const Rect.fromLTRB(0.0, 56.0, 800.0, 535.0)),
);
});
}