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63 lines
2.0 KiB
63 lines
2.0 KiB
// Copyright 2020 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:provider/provider.dart';
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import 'package:provider_shopper/models/cart.dart';
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import 'package:provider_shopper/models/catalog.dart';
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import 'package:provider_shopper/screens/cart.dart';
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CartModel cartModel;
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CatalogModel catalogModel;
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Widget createCartScreen() => MultiProvider(
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providers: [
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Provider(create: (context) => CatalogModel()),
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ChangeNotifierProxyProvider<CatalogModel, CartModel>(
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create: (context) => CartModel(),
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update: (context, catalog, cart) {
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catalogModel = catalog;
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cartModel = cart;
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cart.catalog = catalogModel;
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return cart;
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},
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),
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],
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child: MaterialApp(
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home: MyCart(),
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),
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);
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void main() {
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group('CartScreen widget tests', () {
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testWidgets('Tapping BUY button displays snackbar.', (tester) async {
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await tester.pumpWidget(createCartScreen());
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// Verify no snackbar initially exists.
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expect(find.byType(SnackBar), findsNothing);
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await tester.tap(find.text('BUY'));
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// Schedule animation.
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await tester.pump();
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// Verifying the snackbar upon clicking the button.
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expect(find.byType(SnackBar), findsOneWidget);
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});
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testWidgets('Testing when the cart contains items', (tester) async {
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await tester.pumpWidget(createCartScreen());
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// Adding five items in the cart and testing.
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for (var i = 0; i < 5; i++) {
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var item = catalogModel.getByPosition(i);
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cartModel.add(item);
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await tester.pumpAndSettle();
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expect(find.text(item.name), findsOneWidget);
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}
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// Testing total price of the five items.
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expect(find.text('\$${42 * 5}'), findsOneWidget);
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expect(find.byIcon(Icons.done), findsNWidgets(5));
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});
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});
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}
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