// 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/rendering.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('BAB theme overrides color', (WidgetTester tester) async { const Color themedColor = Colors.black87; const BottomAppBarTheme theme = BottomAppBarTheme(color: themedColor); await tester.pumpWidget(_withTheme(theme)); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, themedColor); }); testWidgets('BAB color - Widget', (WidgetTester tester) async { const Color themeColor = Colors.white10; const Color babThemeColor = Colors.black87; const Color babColor = Colors.pink; const BottomAppBarTheme theme = BottomAppBarTheme(color: babThemeColor); await tester.pumpWidget(MaterialApp( theme: ThemeData(bottomAppBarTheme: theme, bottomAppBarColor: themeColor), home: const Scaffold(body: BottomAppBar(color: babColor)), )); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, babColor); }); testWidgets('BAB color - BabTheme', (WidgetTester tester) async { const Color themeColor = Colors.white10; const Color babThemeColor = Colors.black87; const BottomAppBarTheme theme = BottomAppBarTheme(color: babThemeColor); await tester.pumpWidget(MaterialApp( theme: ThemeData(bottomAppBarTheme: theme, bottomAppBarColor: themeColor), home: const Scaffold(body: BottomAppBar()), )); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, babThemeColor); }); testWidgets('BAB color - Theme', (WidgetTester tester) async { const Color themeColor = Colors.white10; await tester.pumpWidget(MaterialApp( theme: ThemeData(bottomAppBarColor: themeColor), home: const Scaffold(body: BottomAppBar()), )); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, themeColor); }); testWidgets('BAB color - Default', (WidgetTester tester) async { await tester.pumpWidget(MaterialApp( theme: ThemeData(), home: const Scaffold(body: BottomAppBar()), )); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, Colors.white); }); testWidgets('BAB theme customizes shape', (WidgetTester tester) async { const BottomAppBarTheme theme = BottomAppBarTheme( color: Colors.white30, shape: CircularNotchedRectangle(), elevation: 1.0, ); await tester.pumpWidget(_withTheme(theme)); await expectLater( find.byKey(_painterKey), matchesGoldenFile('bottom_app_bar_theme.custom_shape.png'), ); }); testWidgets('BAB theme does not affect defaults', (WidgetTester tester) async { await tester.pumpWidget(const MaterialApp( home: Scaffold(body: BottomAppBar()), )); final PhysicalShape widget = _getBabRenderObject(tester); expect(widget.color, Colors.white); expect(widget.elevation, equals(8.0)); }); } PhysicalShape _getBabRenderObject(WidgetTester tester) { return tester.widget<PhysicalShape>( find.descendant( of: find.byType(BottomAppBar), matching: find.byType(PhysicalShape), ), ); } final Key _painterKey = UniqueKey(); Widget _withTheme(BottomAppBarTheme theme) { return MaterialApp( theme: ThemeData(bottomAppBarTheme: theme), home: Scaffold( floatingActionButton: const FloatingActionButton(onPressed: null), floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked, bottomNavigationBar: RepaintBoundary( key: _painterKey, child: BottomAppBar( child: Row( children: const <Widget>[ Icon(Icons.add), Expanded(child: SizedBox()), Icon(Icons.add), ], ), ), ), ), ); }