feat: add tests

This commit is contained in:
2026-07-29 01:18:44 +02:00
parent 8a264d0ae6
commit 34d5800c07
8 changed files with 1127 additions and 0 deletions
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import 'package:flutter_test/flutter_test.dart';
import 'package:kooltab2/models/bar_tab.dart';
import 'package:kooltab2/models/tab_item.dart';
void main() {
group('BarTab', () {
group('totalInCents', () {
test('calculates total from items', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: [
const TabItem(
id: 'item-1',
tabId: 'tab-1',
productId: 'prod-1',
productName: 'Beer',
quantity: 2,
unitPriceInCents: 400,
),
const TabItem(
id: 'item-2',
tabId: 'tab-1',
productId: 'prod-2',
productName: 'Wine',
quantity: 1,
unitPriceInCents: 600,
),
],
);
expect(tab.totalInCents, 1400);
});
test('returns 0 for empty tab', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: const [],
);
expect(tab.totalInCents, 0);
});
});
group('itemCount', () {
test('sums quantities of all items', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: [
const TabItem(
id: 'item-1',
tabId: 'tab-1',
productId: 'prod-1',
productName: 'Beer',
quantity: 3,
unitPriceInCents: 400,
),
const TabItem(
id: 'item-2',
tabId: 'tab-1',
productId: 'prod-2',
productName: 'Wine',
quantity: 2,
unitPriceInCents: 600,
),
],
);
expect(tab.itemCount, 5);
});
test('returns 0 for empty tab', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: const [],
);
expect(tab.itemCount, 0);
});
});
group('formattedTotal', () {
test('formats total with euro symbol', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: const [
TabItem(
id: 'item-1',
tabId: 'tab-1',
productId: 'prod-1',
productName: 'Beer',
quantity: 2,
unitPriceInCents: 425,
),
],
);
expect(tab.formattedTotal, '€8.50');
});
});
group('isOpen', () {
test('returns true for open status', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'open',
openedAt: DateTime.now(),
items: const [],
);
expect(tab.isOpen, true);
});
test('returns false for closed status', () {
final tab = BarTab(
id: 'tab-1',
customerName: 'John',
status: 'closed',
openedAt: DateTime.now(),
items: const [],
);
expect(tab.isOpen, false);
});
});
});
}
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import 'package:drift/drift.dart' hide isNull, isNotNull;
import 'package:drift/native.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:kooltab2/database/app_database.dart';
import 'package:kooltab2/models/product.dart';
import 'package:kooltab2/services/bar_tab_service.dart';
void main() {
late AppDatabase database;
late DriftBarTabService service;
setUp(() {
database = AppDatabase(NativeDatabase.memory());
service = DriftBarTabService(database: database);
});
tearDown(() async {
await database.close();
});
Product createTestProduct({
String id = 'prod-1',
String name = 'Test Beer',
int priceInCents = 400,
}) {
return Product(
id: id,
name: name,
category: 'Drinks',
stockQuantity: 100,
lowStockThreshold: 10,
priceInCents: priceInCents,
);
}
group('DriftBarTabService', () {
group('createTab', () {
test('creates tab with open status', () async {
final tab = await service.createTab(customerName: 'John');
expect(tab.customerName, 'John');
expect(tab.status, 'open');
expect(tab.items, isEmpty);
});
test('creates tab with unique id', () async {
final tab1 = await service.createTab(customerName: 'John');
final tab2 = await service.createTab(customerName: 'Jane');
expect(tab1.id, isNot(equals(tab2.id)));
});
});
group('getOpenTabs', () {
test('returns empty list when no tabs', () async {
final tabs = await service.getOpenTabs();
expect(tabs, isEmpty);
});
test('returns only open tabs', () async {
await service.createTab(customerName: 'Open Tab');
await database.into(database.barTabs).insert(
BarTabsCompanion.insert(
id: 'closed-tab',
customerName: 'Closed Tab',
status: const Value('closed'),
openedAt: DateTime.now(),
),
);
final tabs = await service.getOpenTabs();
expect(tabs.length, 1);
expect(tabs.first.customerName, 'Open Tab');
});
test('tabs sorted by openedAt descending', () async {
final now = DateTime.now();
await database.into(database.barTabs).insert(
BarTabsCompanion.insert(
id: 'tab-first',
customerName: 'First',
status: const Value('open'),
openedAt: now.subtract(const Duration(hours: 1)),
),
);
await database.into(database.barTabs).insert(
BarTabsCompanion.insert(
id: 'tab-second',
customerName: 'Second',
status: const Value('open'),
openedAt: now,
),
);
final tabs = await service.getOpenTabs();
expect(tabs.first.customerName, 'Second');
expect(tabs.last.customerName, 'First');
});
});
group('getTabById', () {
test('returns tab when exists', () async {
final created = await service.createTab(customerName: 'Test');
final tab = await service.getTabById(created.id);
expect(tab, isNotNull);
expect(tab!.customerName, 'Test');
});
test('returns null when not exists', () async {
final tab = await service.getTabById('nonexistent');
expect(tab, isNull);
});
});
group('addProductToTab', () {
test('adds new product to tab', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items.length, 1);
expect(updatedTab.items.first.productName, 'Test Beer');
expect(updatedTab.items.first.quantity, 1);
});
test('increments quantity when product already in tab', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
await service.addProductToTab(tabId: tab.id, product: product);
await service.addProductToTab(tabId: tab.id, product: product);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items.length, 1);
expect(updatedTab.items.first.quantity, 3);
});
test('adding product calculates correct line total', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct(priceInCents: 450);
await service.addProductToTab(tabId: tab.id, product: product);
await service.addProductToTab(tabId: tab.id, product: product);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items.first.lineTotalInCents, 900);
});
});
group('updateTabItemQuantity', () {
test('updates item quantity', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
final tabItemId = (await service.getTabById(tab.id))!.items.first.id;
await service.updateTabItemQuantity(
tabItemId: tabItemId,
quantity: 5,
);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items.first.quantity, 5);
});
test('deletes item when quantity is zero', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
final tabItemId = (await service.getTabById(tab.id))!.items.first.id;
await service.updateTabItemQuantity(tabItemId: tabItemId, quantity: 0);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items, isEmpty);
});
test('deletes item when quantity is negative', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
final tabItemId = (await service.getTabById(tab.id))!.items.first.id;
await service.updateTabItemQuantity(tabItemId: tabItemId, quantity: -1);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items, isEmpty);
});
});
group('closeTab', () {
test('archives tab items to closed tabs', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
await service.addProductToTab(tabId: tab.id, product: product);
await service.closeTab(tab.id);
final closedTabs = await service.getClosedTabs();
expect(closedTabs.length, 1);
expect(closedTabs.first.customerName, 'John');
expect(closedTabs.first.items.length, 1);
expect(closedTabs.first.items.first.quantity, 2);
});
test('clears tab items after closing', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
await service.closeTab(tab.id);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.items, isEmpty);
});
test('tab remains open but items cleared', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct();
await service.addProductToTab(tabId: tab.id, product: product);
await service.closeTab(tab.id);
final updatedTab = await service.getTabById(tab.id);
expect(updatedTab!.isOpen, true);
expect(updatedTab.items, isEmpty);
});
test('closed tab preserves item prices', () async {
final tab = await service.createTab(customerName: 'John');
final product = createTestProduct(priceInCents: 550);
await service.addProductToTab(tabId: tab.id, product: product);
await service.closeTab(tab.id);
final closedTabs = await service.getClosedTabs();
expect(closedTabs.first.items.first.unitPriceInCents, 550);
});
});
group('getClosedTabs', () {
test('returns empty when no closed tabs', () async {
final tabs = await service.getClosedTabs();
expect(tabs, isEmpty);
});
test('returns closed tabs sorted by closedAt descending', () async {
final now = DateTime.now();
await database.into(database.closedTabs).insert(
ClosedTabsCompanion.insert(
id: 'closed-first',
originalTabId: 'original-1',
customerName: 'First',
closedAt: now.subtract(const Duration(hours: 1)),
),
);
await database.into(database.closedTabs).insert(
ClosedTabsCompanion.insert(
id: 'closed-second',
originalTabId: 'original-2',
customerName: 'Second',
closedAt: now,
),
);
final closedTabs = await service.getClosedTabs();
expect(closedTabs.first.customerName, 'Second');
expect(closedTabs.last.customerName, 'First');
});
});
});
}
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import 'package:flutter_test/flutter_test.dart';
import 'package:mocktail/mocktail.dart';
import 'package:kooltab2/models/product.dart';
import 'package:kooltab2/services/product_service.dart';
import 'package:kooltab2/viewmodels/inventory_view_model.dart';
class MockProductService extends Mock implements ProductService {}
void main() {
late InventoryViewModel viewModel;
late MockProductService mockService;
setUp(() {
mockService = MockProductService();
viewModel = InventoryViewModel(productService: mockService);
});
setUpAll(() {
registerFallbackValue(const Product(
id: 'fallback',
name: 'Fallback',
category: 'Test',
stockQuantity: 0,
lowStockThreshold: 0,
priceInCents: 0,
));
});
final testProducts = [
const Product(
id: 'prod-1',
name: 'Beer',
category: 'Drinks',
stockQuantity: 20,
lowStockThreshold: 5,
priceInCents: 400,
),
const Product(
id: 'prod-2',
name: 'Wine',
category: 'Drinks',
stockQuantity: 3,
lowStockThreshold: 5,
priceInCents: 600,
),
];
group('InventoryViewModel', () {
group('load', () {
test('loads products from service', () async {
when(() => mockService.getProducts())
.thenAnswer((_) async => testProducts);
await viewModel.load();
expect(viewModel.products, testProducts);
verify(() => mockService.getProducts()).called(1);
});
test('notifies listeners after load', () async {
var notifyCount = 0;
viewModel.addListener(() => notifyCount++);
when(() => mockService.getProducts())
.thenAnswer((_) async => testProducts);
await viewModel.load();
expect(notifyCount, 1);
});
});
group('decreaseStock', () {
test('decreases stock via service', () async {
when(() => mockService.decreaseStock('prod-1', 3))
.thenAnswer((_) async {});
await viewModel.decreaseStock('prod-1', 3);
verify(() => mockService.decreaseStock('prod-1', 3)).called(1);
});
test('updates local product cache', () async {
when(() => mockService.getProducts())
.thenAnswer((_) async => testProducts);
when(() => mockService.decreaseStock('prod-1', 5))
.thenAnswer((_) async {});
await viewModel.load();
await viewModel.decreaseStock('prod-1', 5);
final product = viewModel.products.firstWhere((p) => p.id == 'prod-1');
expect(product.stockQuantity, 15);
});
test('notifies listeners after decrease', () async {
var notifyCount = 0;
viewModel.addListener(() => notifyCount++);
when(() => mockService.decreaseStock('prod-1', 1))
.thenAnswer((_) async {});
await viewModel.decreaseStock('prod-1', 1);
expect(notifyCount, 1);
});
});
group('increaseStock', () {
test('increases stock via service', () async {
when(() => mockService.increaseStock('prod-1', 5))
.thenAnswer((_) async {});
await viewModel.increaseStock('prod-1', 5);
verify(() => mockService.increaseStock('prod-1', 5)).called(1);
});
test('updates local product cache', () async {
when(() => mockService.getProducts())
.thenAnswer((_) async => testProducts);
when(() => mockService.increaseStock('prod-2', 2))
.thenAnswer((_) async {});
await viewModel.load();
await viewModel.increaseStock('prod-2', 2);
final product = viewModel.products.firstWhere((p) => p.id == 'prod-2');
expect(product.stockQuantity, 5);
});
test('notifies listeners after increase', () async {
var notifyCount = 0;
viewModel.addListener(() => notifyCount++);
when(() => mockService.increaseStock('prod-1', 1))
.thenAnswer((_) async {});
await viewModel.increaseStock('prod-1', 1);
expect(notifyCount, 1);
});
});
group('edge cases', () {
test('handles decrease for product not in local cache', () async {
when(() => mockService.getProducts())
.thenAnswer((_) async => testProducts);
when(() => mockService.decreaseStock('unknown', 1))
.thenAnswer((_) async {});
await viewModel.load();
await viewModel.decreaseStock('unknown', 1);
verify(() => mockService.decreaseStock('unknown', 1)).called(1);
expect(viewModel.products.length, 2);
});
});
});
}
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import 'dart:convert';
import 'package:crypto/crypto.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mocktail/mocktail.dart';
import 'package:kooltab2/services/pin_lock_service.dart';
class MockFlutterSecureStorage extends Mock
implements FlutterSecureStorage {}
String _computeHash(String pin, String salt) {
final bytes = utf8.encode('$salt:$pin');
return sha256.convert(bytes).toString();
}
void main() {
late PinLockService service;
late MockFlutterSecureStorage mockStorage;
setUp(() {
mockStorage = MockFlutterSecureStorage();
service = PinLockService(storage: mockStorage);
});
group('PinLockService', () {
group('hasPin', () {
test('returns false when no hash stored', () async {
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => null);
final result = await service.hasPin();
expect(result, false);
});
test('returns false when hash is empty', () async {
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => '');
final result = await service.hasPin();
expect(result, false);
});
test('returns true when hash exists', () async {
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => 'somehash');
final result = await service.hasPin();
expect(result, true);
});
});
group('setPin', () {
test('stores salt and hash', () async {
when(() => mockStorage.write(key: any(named: 'key'), value: any(named: 'value')))
.thenAnswer((_) async {});
await service.setPin('1234');
verify(() => mockStorage.write(key: 'pin_salt', value: any(named: 'value'))).called(1);
verify(() => mockStorage.write(key: 'pin_hash', value: any(named: 'value'))).called(1);
});
test('generates unique salts for different pins', () async {
when(() => mockStorage.write(key: any(named: 'key'), value: any(named: 'value')))
.thenAnswer((_) async {});
await service.setPin('1234');
final firstSaltCapture = verify(() => mockStorage.write(
key: 'pin_salt',
value: captureAny(named: 'value'),
)).captured.first;
await service.setPin('5678');
final secondSaltCapture = verify(() => mockStorage.write(
key: 'pin_salt',
value: captureAny(named: 'value'),
)).captured.last;
expect(firstSaltCapture, isNot(equals(secondSaltCapture)));
});
});
group('verifyPin', () {
test('returns false when salt is missing', () async {
when(() => mockStorage.read(key: 'pin_salt'))
.thenAnswer((_) async => null);
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => 'somehash');
final result = await service.verifyPin('1234');
expect(result, false);
});
test('returns false when hash is missing', () async {
when(() => mockStorage.read(key: 'pin_salt'))
.thenAnswer((_) async => 'somesalt');
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => null);
final result = await service.verifyPin('1234');
expect(result, false);
});
test('returns true for correct pin', () async {
const salt = 'test_salt';
const pin = '1234';
final expectedHash = _computeHash(pin, salt);
when(() => mockStorage.read(key: 'pin_salt'))
.thenAnswer((_) async => salt);
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => expectedHash);
final result = await service.verifyPin('1234');
expect(result, true);
});
test('returns false for incorrect pin', () async {
const salt = 'test_salt';
final correctHash = _computeHash('1234', salt);
when(() => mockStorage.read(key: 'pin_salt'))
.thenAnswer((_) async => salt);
when(() => mockStorage.read(key: 'pin_hash'))
.thenAnswer((_) async => correctHash);
final result = await service.verifyPin('5678');
expect(result, false);
});
});
group('clearPin', () {
test('deletes both salt and hash', () async {
when(() => mockStorage.delete(key: any(named: 'key')))
.thenAnswer((_) async {});
await service.clearPin();
verify(() => mockStorage.delete(key: 'pin_salt')).called(1);
verify(() => mockStorage.delete(key: 'pin_hash')).called(1);
});
});
});
}
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import 'package:flutter_test/flutter_test.dart';
import 'package:kooltab2/models/product.dart';
void main() {
group('Product', () {
group('isLowStock', () {
test('returns true when stock equals threshold', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 5,
lowStockThreshold: 5,
priceInCents: 100,
);
expect(product.isLowStock, true);
});
test('returns true when stock is below threshold', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 3,
lowStockThreshold: 5,
priceInCents: 100,
);
expect(product.isLowStock, true);
});
test('returns false when stock is above threshold', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 5,
priceInCents: 100,
);
expect(product.isLowStock, false);
});
});
group('formattedPrice', () {
test('formats price with euro symbol and 2 decimals', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 5,
priceInCents: 1234,
);
expect(product.formattedPrice, '€12.34');
});
test('formats zero price correctly', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 5,
priceInCents: 0,
);
expect(product.formattedPrice, '€0.00');
});
test('formats whole euros correctly', () {
const product = Product(
id: '1',
name: 'Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 5,
priceInCents: 500,
);
expect(product.formattedPrice, '€5.00');
});
});
group('copyWith', () {
test('creates copy with updated fields', () {
const original = Product(
id: '1',
name: 'Original',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 5,
priceInCents: 100,
);
final copy = original.copyWith(name: 'Updated', stockQuantity: 20);
expect(copy.name, 'Updated');
expect(copy.stockQuantity, 20);
expect(copy.id, '1');
expect(copy.category, 'Drinks');
});
test('preserves original values when not specified', () {
const original = Product(
id: '1',
name: 'Test',
category: 'Food',
stockQuantity: 15,
lowStockThreshold: 3,
priceInCents: 750,
imagePath: '/path/to/image.jpg',
active: false,
);
final copy = original.copyWith();
expect(copy.id, '1');
expect(copy.name, 'Test');
expect(copy.category, 'Food');
expect(copy.stockQuantity, 15);
expect(copy.lowStockThreshold, 3);
expect(copy.priceInCents, 750);
expect(copy.imagePath, '/path/to/image.jpg');
expect(copy.active, false);
});
});
});
}
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import 'package:drift/drift.dart' hide isNull, isNotNull;
import 'package:drift/native.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:kooltab2/database/app_database.dart';
import 'package:kooltab2/models/product.dart';
import 'package:kooltab2/services/product_service.dart';
void main() {
late AppDatabase database;
late DriftProductService service;
setUp(() {
database = AppDatabase(NativeDatabase.memory());
service = DriftProductService(database: database);
});
tearDown(() async {
await database.close();
});
group('DriftProductService', () {
group('getProducts', () {
test('returns empty list when no products', () async {
final products = await service.getProducts();
expect(products, isEmpty);
});
test('returns only active products', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: '1',
name: 'Active Product',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await database.into(database.products).insert(
ProductsCompanion.insert(
id: '2',
name: 'Inactive Product',
category: 'Drinks',
stockQuantity: 5,
lowStockThreshold: 1,
priceInCents: 300,
active: const Value(false),
),
);
final products = await service.getProducts();
expect(products.length, 1);
expect(products.first.name, 'Active Product');
});
test('returns products sorted by name', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: '1',
name: 'Zebra',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await database.into(database.products).insert(
ProductsCompanion.insert(
id: '2',
name: 'Apple',
category: 'Drinks',
stockQuantity: 5,
lowStockThreshold: 1,
priceInCents: 300,
),
);
final products = await service.getProducts();
expect(products.first.name, 'Apple');
expect(products.last.name, 'Zebra');
});
});
group('getProductById', () {
test('returns product when exists', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'prod-123',
name: 'Test Product',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
final product = await service.getProductById('prod-123');
expect(product, isNotNull);
expect(product!.name, 'Test Product');
});
test('returns null when not exists', () async {
final product = await service.getProductById('nonexistent');
expect(product, isNull);
});
});
group('createProduct', () {
test('creates product successfully', () async {
await service.createProduct(
name: 'New Product',
category: 'Food',
stockQuantity: 20,
lowStockThreshold: 5,
priceInCents: 850,
imagePath: null,
);
final products = await service.getProducts();
expect(products.length, 1);
expect(products.first.name, 'New Product');
expect(products.first.stockQuantity, 20);
});
});
group('updateProduct', () {
test('updates product fields', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'update-test',
name: 'Original',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await service.updateProduct(
const Product(
id: 'update-test',
name: 'Updated',
category: 'Food',
stockQuantity: 15,
lowStockThreshold: 3,
priceInCents: 750,
active: true,
),
);
final product = await service.getProductById('update-test');
expect(product!.name, 'Updated');
expect(product.stockQuantity, 15);
expect(product.priceInCents, 750);
});
});
group('deleteProduct', () {
test('removes product from database', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'delete-test',
name: 'To Delete',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await service.deleteProduct('delete-test');
final products = await database.select(database.products).get();
expect(products, isEmpty);
});
});
group('decreaseStock', () {
test('decreases stock quantity', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'stock-test',
name: 'Stock Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await service.decreaseStock('stock-test', 3);
final product = await service.getProductById('stock-test');
expect(product!.stockQuantity, 7);
});
test('throws when product not found', () async {
expect(
() => service.decreaseStock('nonexistent', 1),
throwsA(isA<Exception>()),
);
});
test('throws when not enough stock', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'low-stock',
name: 'Low Stock',
category: 'Drinks',
stockQuantity: 3,
lowStockThreshold: 1,
priceInCents: 500,
),
);
expect(
() => service.decreaseStock('low-stock', 5),
throwsA(isA<Exception>()),
);
});
});
group('increaseStock', () {
test('increases stock quantity', () async {
await database.into(database.products).insert(
ProductsCompanion.insert(
id: 'increase-test',
name: 'Increase Test',
category: 'Drinks',
stockQuantity: 10,
lowStockThreshold: 2,
priceInCents: 500,
),
);
await service.increaseStock('increase-test', 5);
final product = await service.getProductById('increase-test');
expect(product!.stockQuantity, 15);
});
test('throws when product not found', () async {
expect(
() => service.increaseStock('nonexistent', 1),
throwsA(isA<Exception>()),
);
});
});
});
}