blob: ca4c79d1ac840e3a1b882f083fe7d3aff99fc55e [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_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
typedef TestCallback = void Function(BuildContext context);
class TestWidget extends StatefulWidget {
const TestWidget(this.callback, { Key key }) : super(key: key);
final TestCallback callback;
@override
TestWidgetState createState() => TestWidgetState();
}
class TestWidgetState extends State<TestWidget> {
@override
void dispose() {
widget.callback(context);
super.dispose();
}
@override
Widget build(BuildContext context) => const Text('test', textDirection: TextDirection.ltr);
}
void main() {
testWidgets('dependOnInheritedWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.dependOnInheritedWidgetOfExactType<InheritedWidget>();
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('getElementForInheritedWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.getElementForInheritedWidgetOfExactType<InheritedWidget>();
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('findAncestorWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.findAncestorWidgetOfExactType<Container>();
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('findAncestorStateOfType() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.findAncestorStateOfType<State>();
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('findAncestorRenderObjectOfType() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.findAncestorRenderObjectOfType<RenderObject>();
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('visitAncestorElements() called from dispose() throws error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
context.visitAncestorElements((Element element) => true);
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
expect(tester.takeException(), isFlutterError);
});
testWidgets('dispose() method does not unconditionally throw an error', (WidgetTester tester) async {
bool disposeCalled = false;
await tester.pumpWidget(
TestWidget((BuildContext context) {
disposeCalled = true;
}),
);
await tester.pumpWidget(Container());
expect(disposeCalled, isTrue);
});
}