private void Button_Click_2(object sender, RoutedEventArgs e)
        {
            InventoryTests inventoryTests = new InventoryTests();

            inventoryTests.CategoryManagement();
            inventoryTests.ChannelManagement();
            inventoryTests.ChannelGroupManagement();
            inventoryTests.VariantManagement();
            inventoryTests.PriorityManagement();
            inventoryTests.ProductManagement();
            inventoryTests.SalesPlanManagement();
        }
        private void Button_Click_34(object sender, RoutedEventArgs e)
        {
            InventoryTests inventoryTests = new InventoryTests();

            inventoryTests.VariantManagement();
        }