public void AddProductTest()
{
var optionsBuilder = new DbContextOptionsBuilder <TestRepositoryContext>();
optionsBuilder.UseInMemoryDatabase("ProductManagerTestDb");
using var context = new TestRepositoryContext(optionsBuilder.Options);
var product = new ProductHelper(context);
var newProduct = new DtoNewProductToShelf()
{
ProductId = 1,
RoutineId = 1
};
Assert.True(product.AddProductToShelf(newProduct));
}