// 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/rendering.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; import '../rendering/mock_canvas.dart'; /// Unit tests error.dart's usage via ErrorWidget. void main() { const String errorMessage = 'Some error message'; testWidgets('test draw error paragraph', (WidgetTester tester) async { await tester.pumpWidget(ErrorWidget(Exception(errorMessage))); expect( find.byType(ErrorWidget), paints ..rect(rect: const Rect.fromLTWH(0.0, 0.0, 800.0, 600.0)) ..paragraph(offset: const Offset(64.0, 96.0)), ); final Widget error = Builder(builder: (BuildContext context) => throw 'pillow'); await tester.pumpWidget(Center(child: SizedBox(width: 100.0, child: error))); expect(tester.takeException(), 'pillow'); expect( find.byType(ErrorWidget), paints ..rect(rect: const Rect.fromLTWH(0.0, 0.0, 100.0, 600.0)) ..paragraph(offset: const Offset(0.0, 96.0)), ); await tester.pumpWidget(Center(child: SizedBox(height: 100.0, child: error))); expect(tester.takeException(), null); await tester.pumpWidget(Center(child: SizedBox(key: UniqueKey(), height: 100.0, child: error))); expect(tester.takeException(), 'pillow'); expect( find.byType(ErrorWidget), paints ..rect(rect: const Rect.fromLTWH(0.0, 0.0, 800.0, 100.0)) ..paragraph(offset: const Offset(64.0, 0.0)), ); RenderErrorBox.minimumWidth = 800.0; await tester.pumpWidget(Center(child: error)); expect(tester.takeException(), 'pillow'); expect( find.byType(ErrorWidget), paints ..rect(rect: const Rect.fromLTWH(0.0, 0.0, 800.0, 600.0)) ..paragraph(offset: const Offset(0.0, 96.0)), ); await tester.pumpWidget(Center(child: error)); expect(tester.takeException(), null); expect( find.byType(ErrorWidget), paints ..rect(color: const Color(0xF0900000)) ..paragraph(), ); RenderErrorBox.backgroundColor = const Color(0xFF112233); await tester.pumpWidget(Center(child: error)); expect(tester.takeException(), null); expect( find.byType(ErrorWidget), paints ..rect(color: const Color(0xFF112233)) ..paragraph(), ); }); }