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// Copyright 2017 The Chromium 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_test/flutter_test.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'semantics_tester.dart';
void main() {
testWidgets('Vertical gesture detector has up/down actions', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
int callCount = 0;
final GlobalKey detectorKey = GlobalKey();
await tester.pumpWidget(
Center(
child: GestureDetector(
key: detectorKey,
onVerticalDragStart: (DragStartDetails _) {
callCount += 1;
},
child: Container(),
),
)
);
expect(semantics, includesNodeWith(
actions: <SemanticsAction>[SemanticsAction.scrollUp, SemanticsAction.scrollDown]),
);
final int detectorId = detectorKey.currentContext.findRenderObject().debugSemantics.id;
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollLeft);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollRight);
expect(callCount, 0);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollUp);
expect(callCount, 1);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollDown);
expect(callCount, 2);
semantics.dispose();
});
testWidgets('Horizontal gesture detector has up/down actions', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
int callCount = 0;
final GlobalKey detectorKey = GlobalKey();
await tester.pumpWidget(
Center(
child: GestureDetector(
key: detectorKey,
onHorizontalDragStart: (DragStartDetails _) {
callCount += 1;
},
child: Container(),
),
)
);
expect(semantics, includesNodeWith(
actions: <SemanticsAction>[SemanticsAction.scrollLeft, SemanticsAction.scrollRight]),
);
final int detectorId = detectorKey.currentContext.findRenderObject().debugSemantics.id;
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollUp);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollDown);
expect(callCount, 0);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollLeft);
expect(callCount, 1);
tester.binding.pipelineOwner.semanticsOwner.performAction(detectorId, SemanticsAction.scrollRight);
expect(callCount, 2);
semantics.dispose();
});
}