public async Task AddShippingMethodShouldNotCreateNewMethodIfExist()
{
var options = new DbContextOptionsBuilder <WHMSDbContext>().UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
using var context = new WHMSDbContext(options);
var mockInventoryService = new Mock <IInventoryService>();
var service = new ShippingService(context, mockInventoryService.Object);
var shippingService = "FedEx";
var carrier = new Carrier {
Name = shippingService
};
context.Carriers.Add(carrier);
var shipping = new ShippingMethod {
Carrier = carrier, CarrierId = carrier.Id, Name = shippingService
};
context.ShippingMethods.Add(shipping);
await context.SaveChangesAsync();
var id = await service.AddShippingMethodAsync(carrier.Id, shippingService);
var shippingMethodDB = context.ShippingMethods.FirstOrDefault();
Assert.Equal(shippingService, shippingMethodDB.Name);
Assert.Equal(id, shippingMethodDB.Id);
}
