public async Task CreateBrandShouldCreateNewBrand()
{
var options = new DbContextOptionsBuilder <WHMSDbContext>().UseInMemoryDatabase(databaseName: "TestDB").Options;
using var context = new WHMSDbContext(options);
var service = new BrandsService(context);
var brandId = await service.CreateBrandAsync("TestBrand");
var brandsCount = service.GetAllBrandsCount();
var expectedCount = 1;
Assert.Equal(expectedCount, brandsCount);
Assert.Equal(1, brandId);
}