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Implemented cart service tests
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+162
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‎ecommerce_app/lib/src/features/cart/domain/cart.dart‎

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Original file line numberDiff line numberDiff line change
@@ -1,5 +1,7 @@
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import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:ecommerce_app/src/features/cart/domain/item.dart';
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import 'package:ecommerce_app/src/features/products/domain/product.dart';
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@@ -30,6 +32,16 @@ class Cart {
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@override
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String toString() => 'Cart(items: $items)';
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@override
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bool operator ==(Object other) {
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if (identical(this, other)) return true;
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return other is Cart && mapEquals(other.items, items);
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}
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@override
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int get hashCode => items.hashCode;
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}
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extension CartItems on Cart {

‎ecommerce_app/test/src/features/cart/application/cart_service_test.dart‎

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Original file line numberDiff line numberDiff line change
@@ -1,13 +1,22 @@
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import 'package:ecommerce_app/src/features/authentication/data/fake_auth_repository.dart';
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import 'package:ecommerce_app/src/features/authentication/domain/app_user.dart';
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import 'package:ecommerce_app/src/features/cart/application/cart_service.dart';
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import 'package:ecommerce_app/src/features/cart/data/local/local_cart_repository.dart';
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import 'package:ecommerce_app/src/features/cart/data/remote/remote_cart_repository.dart';
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import 'package:ecommerce_app/src/features/cart/domain/cart.dart';
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import 'package:ecommerce_app/src/features/cart/domain/item.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:mocktail/mocktail.dart';
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import '../../../mocks.dart';
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void main() {
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setUpAll(() {
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registerFallbackValue(const Cart());
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});
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const testUser = AppUser(uid: 'abc');
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late MockAuthRepository authRepository;
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late MockRemoteCartRepository remoteCartRepository;
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late MockLocalCartRepository localCartRepository;
@@ -16,6 +25,7 @@ void main() {
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remoteCartRepository = MockRemoteCartRepository();
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localCartRepository = MockLocalCartRepository();
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});
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CartService makeCartService() {
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final container = ProviderContainer(
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overrides: [
@@ -30,11 +40,150 @@ void main() {
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group('setItem', () {
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test('null user, writes item to local cart', () async {
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// setup
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const expectedCart = Cart({'123': 1});
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when(() => authRepository.currentUser).thenReturn(null);
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when(localCartRepository.fetchCart).thenAnswer(
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(_) => Future.value(const Cart()),
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);
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when(() => localCartRepository.setCart(expectedCart)).thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.setItem(
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const Item(productId: '123', quantity: 1),
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);
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// verify
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verify(
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() => localCartRepository.setCart(expectedCart),
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).called(1);
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verifyNever(
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() => remoteCartRepository.setCart(any(), any()),
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);
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});
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test('non-null user, writes item to remote cart', () async {
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// TODO: Implement
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// setup
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const expectedCart = Cart({'123': 1});
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when(() => authRepository.currentUser).thenReturn(testUser);
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when(() => remoteCartRepository.fetchCart(testUser.uid)).thenAnswer(
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(_) => Future.value(const Cart()),
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);
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when(() => remoteCartRepository.setCart(testUser.uid, expectedCart))
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.thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.setItem(
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const Item(productId: '123', quantity: 1),
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);
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// verify
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verify(
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() => remoteCartRepository.setCart(testUser.uid, expectedCart),
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).called(1);
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verifyNever(
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() => localCartRepository.setCart(any()),
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);
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});
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});
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group('addItem', () {
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test('null user, adds item to local cart', () async {
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// setup
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const initialCart = Cart({'123': 2});
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const expectedCart = Cart({'123': 3});
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when(() => authRepository.currentUser).thenReturn(null); // null user
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when(localCartRepository.fetchCart).thenAnswer(
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(_) => Future.value(initialCart), // empty cart
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);
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when(() => localCartRepository.setCart(expectedCart)).thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.addItem(const Item(productId: '123', quantity: 1));
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// verify
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verify(
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() => localCartRepository.setCart(expectedCart),
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).called(1);
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verifyNever(
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() => remoteCartRepository.setCart(any(), any()),
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);
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});
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test('non-null user, adds item to remote cart', () async {
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// setup
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const initialCart = Cart({'123': 2});
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const expectedCart = Cart({'123': 3});
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when(() => authRepository.currentUser).thenReturn(testUser); // null user
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when(() => remoteCartRepository.fetchCart(testUser.uid)).thenAnswer(
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(_) => Future.value(initialCart), // empty cart
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);
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when(() => remoteCartRepository.setCart(testUser.uid, expectedCart))
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.thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.addItem(const Item(productId: '123', quantity: 1));
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// verify
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verifyNever(
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() => localCartRepository.setCart(any()),
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);
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verify(
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() => remoteCartRepository.setCart(testUser.uid, expectedCart),
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).called(1);
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});
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});
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group('removeItem', () {
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test('null user, removes item from local cart', () async {
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// setup
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const initialCart = Cart({'123': 3, '456': 1});
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const expectedCart = Cart({'456': 1});
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when(() => authRepository.currentUser).thenReturn(null); // null user
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when(localCartRepository.fetchCart).thenAnswer(
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(_) => Future.value(initialCart), // empty cart
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);
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when(() => localCartRepository.setCart(expectedCart)).thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.removeItemById('123');
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// verify
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verify(
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() => localCartRepository.setCart(expectedCart),
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).called(1);
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verifyNever(
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() => remoteCartRepository.setCart(any(), any()),
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);
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});
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test('non-null user, removes item from remote cart', () async {
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// setup
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const initialCart = Cart({'123': 3, '456': 1});
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const expectedCart = Cart({'456': 1});
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when(() => authRepository.currentUser).thenReturn(testUser); // null user
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when(() => remoteCartRepository.fetchCart(testUser.uid)).thenAnswer(
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(_) => Future.value(initialCart), // empty cart
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);
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when(() => remoteCartRepository.setCart(testUser.uid, expectedCart))
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.thenAnswer(
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(_) => Future.value(),
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);
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final cartService = makeCartService();
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// run
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await cartService.removeItemById('123');
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// verify
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verifyNever(
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() => localCartRepository.setCart(any()),
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);
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verify(
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() => remoteCartRepository.setCart(testUser.uid, expectedCart),
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).called(1);
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});
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});
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}

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