Testing

use RoundlyConsulting\Shops\Cart\Cart;
use RoundlyConsulting\Shops\Facades\Shops;
use RoundlyConsulting\Shops\Orders\Order;
use RoundlyConsulting\Shops\Products\ProductVariant;
use RoundlyConsulting\Shops\Testing\CartChange;

it('adds to the cart, checks out and charges', function () {
    Shops::fake();   // a spy — carts, orders and stock rows are still real

    $variant = ProductVariant::factory()->withEurPrice('1990')->withStock(5)->create();
    $cart = Cart::factory()->create();

    $this->post("/cart/{$cart->id}/items", ['variant' => $variant->id, 'quantity' => 2]);
    $this->post("/cart/{$cart->id}/checkout")->assertRedirect();

    $order = Order::query()->latest('id')->firstOrFail();

    Shops::assertCartChanged($cart, CartChange::Added);   // Added, Updated, Removed or Cleared
    Shops::assertOrderPlaced($cart);                      // the stock checkout reserves is part of this
    Shops::assertCharged($order);                         // and so are the transitions a charge makes
    Shops::assertNothingTransitioned();
    Shops::assertNothingStockAdjusted();
});

use RoundlyConsulting\Shops\Facades\Shops;
use RoundlyConsulting\Shops\Inventory\Enums\StockReason;
use RoundlyConsulting\Shops\Orders\Enums\Status;
use RoundlyConsulting\Shops\Orders\Order;
use RoundlyConsulting\Shops\Products\ProductVariant;

it('ships an order and books a delivery', function () {
    $fake = Shops::fake();   // the ShopsFake — assert on it or on the facade

    $order = Order::factory()->paid()->create();
    $variant = ProductVariant::factory()->withStock(0)->create();

    $this->post("/admin/orders/{$order->number}/ship");
    $this->post("/admin/variants/{$variant->id}/receive", ['quantity' => 10]);

    $fake->assertTransitioned($order, Status::Fulfilled);   // any order / any status when omitted
    $fake->assertStockAdjusted($variant, delta: 10, reason: StockReason::Received);
    $fake->assertNothingPlaced();
    $fake->assertNothingCharged();
    $fake->assertNothingCartChanged();
});

use Illuminate\Support\Facades\Event;
use RoundlyConsulting\Shops\Cart\Cart;
use RoundlyConsulting\Shops\Facades\Shops;
use RoundlyConsulting\Shops\Orders\Events\OrderPlaced;
use RoundlyConsulting\Shops\Products\Product;
use RoundlyConsulting\Shops\Products\ProductVariant;

it('places an order and reserves stock', function () {
    Event::fake([OrderPlaced::class]);

    $product = Product::factory()
        ->published()
        ->withVariant(ProductVariant::factory()->withEurPrice('1990')->withStock(5))
        ->create();
    $variant = $product->variants()->first();

    $cart = Cart::factory()->create();   // EUR, guest token
    Shops::cart($cart)->add($variant, 2);

    $order = Shops::cart($cart)->checkout();

    expect($order->price->getSubtotal()->minor())->toBe('3980')
        ->and($variant->refresh()->availableStock())->toBe(3);

    Event::assertDispatched(OrderPlaced::class);
});

use RoundlyConsulting\Shops\Orders\Order;
use RoundlyConsulting\Shops\Shops\Shop;
use RoundlyConsulting\Shops\Shops\TaxRate;

$shop = Shop::factory()->currency('EUR')->create();
TaxRate::factory()->for($shop)->default()->create();                // standard, 2000 bp
TaxRate::factory()->for($shop)->reduced()->forCountry('DE')->create();

$order = Order::factory()->paid()->create();                        // status columns only
$order = Order::factory()->withDiscount('500', 'EUR', couponCode: 'WELCOME10')->create();