blob: 494dbe7308aca251cf627813dc6c9d86fccd27db [file] [log] [blame]
// 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_test/flutter_test.dart';
import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
void main() {
testWidgetsWithLeakTracking('positions itself at anchorAbove if it fits and shifts up when not', (WidgetTester tester) async {
late StateSetter setState;
const double toolbarOverlap = 100;
const double height = 500;
double anchorY = 200.0;
await tester.pumpWidget(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: StatefulBuilder(
builder: (BuildContext context, StateSetter setter) {
setState = setter;
return CustomSingleChildLayout(
delegate: SpellCheckSuggestionsToolbarLayoutDelegate(
anchor: Offset(50.0, anchorY),
child: Container(
width: 200.0,
height: height,
color: const Color(0xffff0000),
// When the toolbar doesn't fit below anchor, it positions itself such that
// it can just fit.
double toolbarY = tester.getTopLeft(find.byType(Container)).dy;
// Total height available is 600.
expect(toolbarY, equals(toolbarOverlap));
// When it does fit below anchor, it positions itself there.
setState(() {
anchorY = anchorY - toolbarOverlap;
await tester.pump();
toolbarY = tester.getTopLeft(find.byType(Container)).dy;
expect(toolbarY, equals(anchorY));