From 3593a462a1aece00fa9275b931529094c2b5e796 Mon Sep 17 00:00:00 2001
From: a6a2f5842 <office@blax.at>
Date: Tue, 25 Nov 2025 17:14:00 +0100
Subject: [PATCH] I basic tests

---
 src/Models/Product.php                        |   9 +-
 src/Models/ProductAction.php                  |   5 +
 tests/Feature/HasShoppingCapabilitiesTest.php | 278 ++++++++++++++
 tests/Feature/ProductAttributeTest.php        | 226 ++++++++++++
 tests/Feature/ProductPriceTest.php            | 280 ++++++++++++++
 tests/Feature/ProductPurchaseTest.php         | 344 ++++++++++++++++++
 tests/Feature/ProductScopeTest.php            | 243 +++++++++++++
 tests/Feature/ProductStockTest.php            | 277 ++++++++++++++
 tests/Unit/CartTest.php                       | 250 +++++++++++++
 9 files changed, 1910 insertions(+), 2 deletions(-)
 create mode 100644 tests/Feature/HasShoppingCapabilitiesTest.php
 create mode 100644 tests/Feature/ProductAttributeTest.php
 create mode 100644 tests/Feature/ProductPriceTest.php
 create mode 100644 tests/Feature/ProductPurchaseTest.php
 create mode 100644 tests/Feature/ProductScopeTest.php
 create mode 100644 tests/Feature/ProductStockTest.php
 create mode 100644 tests/Unit/CartTest.php

diff --git a/src/Models/Product.php b/src/Models/Product.php
index 929c11d..a54cdf4 100644
--- a/src/Models/Product.php
+++ b/src/Models/Product.php
@@ -122,6 +122,7 @@ class Product extends Model implements Purchasable, Cartable
 
         static::deleted(function ($model) {
             $model->actions()->delete();
+            $model->attributes()->delete();
         });
     }
 
@@ -389,7 +390,7 @@ class Product extends Model implements Purchasable, Cartable
         return $query->where(function ($q) use ($search) {
             $q->where('slug', 'like', "%{$search}%")
                 ->orWhere('sku', 'like', "%{$search}%")
-                ->orWhereRaw("JSON_UNQUOTE(JSON_EXTRACT(meta, '$.name')) LIKE ?", ["%{$search}%"]);
+                ->orWhere('name', 'like', "%{$search}%");
         });
     }
 
@@ -411,8 +412,12 @@ class Product extends Model implements Purchasable, Cartable
 
     public function scopeLowStock($query)
     {
+        $stockTable = config('shop.tables.product_stocks', 'product_stocks');
+        $productTable = config('shop.tables.products', 'products');
+        
         return $query->where('manage_stock', true)
-            ->whereColumn('stock_quantity', '<=', 'low_stock_threshold');
+            ->whereNotNull('low_stock_threshold')
+            ->whereRaw("(\n                SELECT COALESCE(SUM(quantity), 0)\n                FROM {$stockTable}\n                WHERE {$stockTable}.product_id = {$productTable}.id\n                AND {$stockTable}.status IN ('completed', 'pending')\n                AND ({$stockTable}.expires_at IS NULL OR {$stockTable}.expires_at > ?)\n            ) <= {$productTable}.low_stock_threshold", [now()]);
     }
 
     public function isLowStock(): bool
diff --git a/src/Models/ProductAction.php b/src/Models/ProductAction.php
index e8cd367..0903ba2 100644
--- a/src/Models/ProductAction.php
+++ b/src/Models/ProductAction.php
@@ -114,4 +114,9 @@ class ProductAction extends Model
 
         dispatch(new $action_job(...$params));
     }
+
+    public static function getAvailableActions(): array
+    {
+        return config('shop.actions.available', []);
+    }
 }
diff --git a/tests/Feature/HasShoppingCapabilitiesTest.php b/tests/Feature/HasShoppingCapabilitiesTest.php
new file mode 100644
index 0000000..3b643a7
--- /dev/null
+++ b/tests/Feature/HasShoppingCapabilitiesTest.php
@@ -0,0 +1,278 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Exceptions\MultiplePurchaseOptions;
+use Blax\Shop\Exceptions\NotPurchasable;
+use Blax\Shop\Models\Product;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Workbench\App\Models\User;
+
+class HasShoppingCapabilitiesTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function user_has_cart_relationship()
+    {
+        $user = User::factory()->create();
+
+        $this->assertInstanceOf(\Illuminate\Database\Eloquent\Relations\MorphMany::class, $user->cart());
+    }
+
+    /** @test */
+    public function user_has_purchases_relationship()
+    {
+        $user = User::factory()->create();
+
+        $this->assertInstanceOf(\Illuminate\Database\Eloquent\Relations\MorphMany::class, $user->purchases());
+    }
+
+    /** @test */
+    public function user_can_get_current_cart()
+    {
+        $user = User::factory()->create();
+
+        $cart = $user->currentCart();
+
+        $this->assertNotNull($cart);
+        $this->assertEquals($user->id, $cart->customer_id);
+    }
+
+    /** @test */
+    public function user_cannot_purchase_product_without_price()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->create();
+
+        $this->expectException(NotPurchasable::class);
+
+        $user->purchase($product);
+    }
+
+    /** @test */
+    public function user_cannot_purchase_product_with_multiple_default_prices()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()
+            ->withPrices(2)
+            ->create(['manage_stock' => false]);
+
+        // Set both prices as default
+        $product->prices()->update(['is_default' => true]);
+
+        $this->expectException(MultiplePurchaseOptions::class);
+
+        $user->purchase($product);
+    }
+
+    /** @test */
+    public function user_can_purchase_product_with_single_default_price()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()
+            ->withPrices(1)
+            ->create(['manage_stock' => false]);
+
+        $product->prices()->update(['is_default' => true]);
+
+        $purchase = $user->purchase($product);
+
+        $this->assertNotNull($purchase);
+        $this->assertEquals($user->id, $purchase->purchaser_id);
+    }
+
+    /** @test */
+    public function user_cannot_add_product_to_cart_without_default_price()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withStocks()->create();
+
+        $this->assertThrows(fn() => $user->addToCart($product), NotPurchasable::class);
+    }
+
+    /** @test */
+    public function user_cannot_add_product_with_multiple_default_prices_to_cart()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()
+            ->withPrices(3)
+            ->create(['manage_stock' => false]);
+
+        $product->prices()->update(['is_default' => true]);
+
+        $this->expectException(MultiplePurchaseOptions::class);
+
+        $user->addToCart($product);
+    }
+
+    /** @test */
+    public function user_can_get_completed_purchases()
+    {
+        $user = User::factory()->create();
+        $product1 = Product::factory()->withPrices()->create(['manage_stock' => false]);
+        $product2 = Product::factory()->withPrices()->create(['manage_stock' => false]);
+
+        $purchase1 = $user->purchase($product1);
+        $purchase1->update(['status' => 'completed']);
+
+        $purchase2 = $user->purchase($product2);
+        $purchase2->update(['status' => 'unpaid']);
+
+        $completed = $user->completedPurchases;
+
+        $this->assertCount(1, $completed);
+        $this->assertEquals('completed', $completed->first()->status);
+    }
+
+    /** @test */
+    public function purchase_with_metadata_stores_correctly()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create(['manage_stock' => false]);
+
+        $metadata = [
+            'custom_field' => 'custom_value',
+            'notes' => 'Special instructions',
+        ];
+
+        $purchase = $user->purchase($product, quantity: 1, meta: $metadata);
+
+        $this->assertEquals('custom_value', $purchase->meta->custom_field);
+        $this->assertEquals('Special instructions', $purchase->meta->notes);
+    }
+
+    /** @test */
+    public function user_can_check_if_purchased_specific_product()
+    {
+        $user = User::factory()->create();
+        $purchasedProduct = Product::factory()->withPrices()->create(['manage_stock' => false]);
+        $notPurchasedProduct = Product::factory()->withPrices()->create();
+
+        $purchase = $user->purchase($purchasedProduct);
+        $purchase->update(['status' => 'completed']);
+
+        $this->assertTrue($user->hasPurchased($purchasedProduct));
+        $this->assertFalse($user->hasPurchased($notPurchasedProduct));
+    }
+
+    /** @test */
+    public function user_cart_items_are_accessible()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->withStocks(10)->create();
+
+        $user->addToCart($product);
+
+        $this->assertCount(1, $user->cartItems);
+    }
+
+    /** @test */
+    public function user_can_update_cart_item_quantity()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->withStocks(20)->create();
+
+        $cartItem = $user->addToCart($product, quantity: 1);
+
+        $user->updateCartQuantity($cartItem, quantity: 5);
+
+        $this->assertEquals(5, $cartItem->fresh()->quantity);
+    }
+
+    /** @test */
+    public function user_can_remove_item_from_cart()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->withStocks(10)->create();
+
+        $cartItem = $user->addToCart($product);
+
+        $this->assertCount(1, $user->cartItems);
+
+        $user->removeFromCart($cartItem);
+
+        $this->assertCount(0, $user->fresh()->cartItems);
+    }
+
+    /** @test */
+    public function user_can_get_cart_total()
+    {
+        $user = User::factory()->create();
+        $product1 = Product::factory()->withPrices(unit_amount: 100)->withStocks(10)->create();
+        $product2 = Product::factory()->withPrices(unit_amount: 50)->withStocks(10)->create();
+
+        $user->addToCart($product1, quantity: 2);
+        $user->addToCart($product2, quantity: 1);
+
+        $total = $user->getCartTotal();
+
+        $this->assertEquals(250.00, $total);
+    }
+
+    /** @test */
+    public function user_can_get_cart_items_count()
+    {
+        $user = User::factory()->create();
+        $product1 = Product::factory()->withPrices()->withStocks(10)->create();
+        $product2 = Product::factory()->withPrices()->withStocks(10)->create();
+
+        $user->addToCart($product1, quantity: 3);
+        $user->addToCart($product2, quantity: 2);
+
+        $count = $user->getCartItemsCount();
+
+        $this->assertEquals(5, $count);
+    }
+
+    /** @test */
+    public function user_can_clear_cart()
+    {
+        $user = User::factory()->create();
+        $product1 = Product::factory()->withPrices()->withStocks(10)->create();
+        $product2 = Product::factory()->withPrices()->withStocks(10)->create();
+
+        $user->addToCart($product1);
+        $user->addToCart($product2);
+
+        $this->assertCount(2, $user->cartItems);
+
+        $user->clearCart();
+
+        $this->assertCount(0, $user->fresh()->cartItems);
+    }
+
+    /** @test */
+    public function adding_product_to_cart_reserves_stock()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->withStocks(10)->create();
+
+        $this->assertEquals(10, $product->getAvailableStock());
+
+        $user->addToCart($product, quantity: 3);
+
+        $this->assertEquals(7, $product->fresh()->getAvailableStock());
+    }
+
+    /** @test */
+    public function purchase_calls_product_actions()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create(['manage_stock' => false]);
+
+        // Create a product action
+        $product->actions()->create([
+            'event' => 'purchased',
+            'action_type' => 'TestAction',
+            'active' => true,
+        ]);
+
+        $purchase = $user->purchase($product);
+
+        // Just verify purchase was created successfully
+        // Actual action execution would require implementing the action class
+        $this->assertNotNull($purchase);
+    }
+}
diff --git a/tests/Feature/ProductAttributeTest.php b/tests/Feature/ProductAttributeTest.php
new file mode 100644
index 0000000..a442721
--- /dev/null
+++ b/tests/Feature/ProductAttributeTest.php
@@ -0,0 +1,226 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductAttribute;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class ProductAttributeTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function it_can_create_a_product_attribute()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Material',
+            'value' => 'Cotton',
+        ]);
+
+        $this->assertDatabaseHas('product_attributes', [
+            'id' => $attribute->id,
+            'product_id' => $product->id,
+            'key' => 'Material',
+            'value' => 'Cotton',
+        ]);
+    }
+
+    /** @test */
+    public function attribute_belongs_to_product()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Color',
+            'value' => 'Red',
+        ]);
+
+        $this->assertInstanceOf(Product::class, $attribute->product);
+        $this->assertEquals($product->id, $attribute->product->id);
+    }
+
+    /** @test */
+    public function product_can_have_multiple_attributes()
+    {
+        $product = Product::factory()->create();
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Size',
+            'value' => 'Large',
+        ]);
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Color',
+            'value' => 'Blue',
+        ]);
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Material',
+            'value' => 'Polyester',
+        ]);
+
+        $this->assertCount(3, $product->fresh()->attributes);
+    }
+
+    /** @test */
+    public function it_can_have_a_sort_order()
+    {
+        $product = Product::factory()->create();
+
+        $attr1 = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'First',
+            'value' => 'Value1',
+            'sort_order' => 1,
+        ]);
+
+        $attr2 = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Second',
+            'value' => 'Value2',
+            'sort_order' => 2,
+        ]);
+
+        $attributes = ProductAttribute::where('product_id', $product->id)
+            ->orderBy('sort_order')
+            ->get();
+
+        $this->assertEquals($attr1->id, $attributes[0]->id);
+        $this->assertEquals($attr2->id, $attributes[1]->id);
+    }
+
+    /** @test */
+    public function it_can_store_metadata()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Dimensions',
+            'value' => '10x20x30',
+            'meta' => [
+                'unit' => 'cm',
+                'display_format' => 'length x width x height',
+            ],
+        ]);
+
+        $this->assertEquals('cm', $attribute->meta->unit);
+        $this->assertEquals('length x width x height', $attribute->meta->display_format);
+    }
+
+    /** @test */
+    public function it_can_update_attribute_value()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Stock Status',
+            'value' => 'In Stock',
+        ]);
+
+        $attribute->update(['value' => 'Out of Stock']);
+
+        $this->assertEquals('Out of Stock', $attribute->fresh()->value);
+    }
+
+    /** @test */
+    public function deleting_product_deletes_attributes()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Test',
+            'value' => 'Value',
+        ]);
+
+        $attributeId = $attribute->id;
+
+        $product->delete();
+
+        $this->assertDatabaseMissing('product_attributes', ['id' => $attributeId]);
+    }
+
+    /** @test */
+    public function it_can_filter_attributes_by_key()
+    {
+        $product = Product::factory()->create();
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Color',
+            'value' => 'Red',
+        ]);
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Color',
+            'value' => 'Blue',
+        ]);
+
+        ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Size',
+            'value' => 'Large',
+        ]);
+
+        $colorAttributes = ProductAttribute::where('product_id', $product->id)
+            ->where('key', 'Color')
+            ->get();
+
+        $this->assertCount(2, $colorAttributes);
+    }
+
+    /** @test */
+    public function multiple_products_can_have_same_attribute_keys()
+    {
+        $product1 = Product::factory()->create();
+        $product2 = Product::factory()->create();
+
+        ProductAttribute::create([
+            'product_id' => $product1->id,
+            'key' => 'Brand',
+            'value' => 'Brand A',
+        ]);
+
+        ProductAttribute::create([
+            'product_id' => $product2->id,
+            'key' => 'Brand',
+            'value' => 'Brand B',
+        ]);
+
+        $this->assertCount(1, $product1->attributes);
+        $this->assertCount(1, $product2->attributes);
+        $this->assertEquals('Brand A', $product1->attributes->first()->value);
+        $this->assertEquals('Brand B', $product2->attributes->first()->value);
+    }
+
+    /** @test */
+    public function attributes_are_hidden_in_api_responses()
+    {
+        $product = Product::factory()->create();
+
+        $attribute = ProductAttribute::create([
+            'product_id' => $product->id,
+            'key' => 'Secret',
+            'value' => 'Value',
+        ]);
+
+        $array = $attribute->toArray();
+
+        $this->assertArrayNotHasKey('id', $array);
+        $this->assertArrayNotHasKey('product_id', $array);
+        $this->assertArrayNotHasKey('created_at', $array);
+        $this->assertArrayNotHasKey('updated_at', $array);
+    }
+}
diff --git a/tests/Feature/ProductPriceTest.php b/tests/Feature/ProductPriceTest.php
new file mode 100644
index 0000000..7f5ca48
--- /dev/null
+++ b/tests/Feature/ProductPriceTest.php
@@ -0,0 +1,280 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductPrice;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class ProductPriceTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function it_can_create_a_product_price()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 99.99,
+            'currency' => 'USD',
+            'is_default' => true,
+            'active' => true,
+        ]);
+
+        $this->assertDatabaseHas('product_prices', [
+            'id' => $price->id,
+            'purchasable_id' => $product->id,
+            'unit_amount' => 99.99,
+        ]);
+    }
+
+    /** @test */
+    public function price_belongs_to_purchasable()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $this->assertInstanceOf(Product::class, $price->purchasable);
+        $this->assertEquals($product->id, $price->purchasable->id);
+    }
+
+    /** @test */
+    public function it_can_set_default_price()
+    {
+        $product = Product::factory()->create();
+
+        $price1 = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+            'is_default' => false,
+        ]);
+
+        $price2 = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 200.00,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->assertFalse($price1->is_default);
+        $this->assertTrue($price2->is_default);
+        $this->assertEquals($price2->id, $product->defaultPrice()->first()->id);
+    }
+
+    /** @test */
+    public function it_can_set_recurring_price()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 29.99,
+            'currency' => 'USD',
+            'type' => 'recurring',
+            'interval' => 'month',
+            'interval_count' => 1,
+            'trial_period_days' => 14,
+        ]);
+
+        $this->assertEquals('recurring', $price->type);
+        $this->assertEquals('month', $price->interval);
+        $this->assertEquals(1, $price->interval_count);
+        $this->assertEquals(14, $price->trial_period_days);
+    }
+
+    /** @test */
+    public function it_can_set_one_time_price()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 99.99,
+            'currency' => 'USD',
+            'type' => 'one_time',
+        ]);
+
+        $this->assertEquals('one_time', $price->type);
+        $this->assertNull($price->interval);
+    }
+
+    /** @test */
+    public function it_can_scope_active_prices()
+    {
+        $product = Product::factory()->create();
+
+        ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+            'active' => true,
+        ]);
+
+        ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 75.00,
+            'currency' => 'USD',
+            'active' => false,
+        ]);
+
+        $activePrices = ProductPrice::isActive()->get();
+
+        $this->assertCount(1, $activePrices);
+        $this->assertTrue($activePrices->first()->active);
+    }
+
+    /** @test */
+    public function it_returns_current_price_based_on_sale()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'sale_unit_amount' => 80.00,
+            'currency' => 'USD',
+        ]);
+
+        $this->assertEquals(80.00, $price->getCurrentPrice(true));
+        $this->assertEquals(100.00, $price->getCurrentPrice(false));
+    }
+
+    /** @test */
+    public function it_can_have_multiple_currencies()
+    {
+        $product = Product::factory()->create();
+
+        $usdPrice = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+        ]);
+
+        $eurPrice = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 90.00,
+            'currency' => 'EUR',
+        ]);
+
+        $this->assertCount(2, $product->prices);
+        $this->assertEquals('USD', $usdPrice->currency);
+        $this->assertEquals('EUR', $eurPrice->currency);
+    }
+
+    /** @test */
+    public function it_can_store_price_metadata()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+            'meta' => [
+                'promo_code' => 'SAVE20',
+                'features' => ['feature1', 'feature2'],
+            ],
+        ]);
+
+        $this->assertEquals('SAVE20', $price->meta->promo_code);
+        $this->assertEquals(['feature1', 'feature2'], $price->meta->features);
+    }
+
+    /** @test */
+    public function it_can_deactivate_price()
+    {
+        $product = Product::factory()->create();
+
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+            'active' => true,
+        ]);
+
+        $this->assertTrue($price->active);
+
+        $price->update(['active' => false]);
+
+        $this->assertFalse($price->fresh()->active);
+    }
+
+    /** @test */
+    public function product_can_have_multiple_price_tiers()
+    {
+        $product = Product::factory()->create();
+
+        ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'name' => 'Basic',
+            'unit_amount' => 10.00,
+            'currency' => 'USD',
+        ]);
+
+        ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'name' => 'Pro',
+            'unit_amount' => 20.00,
+            'currency' => 'USD',
+        ]);
+
+        ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'name' => 'Enterprise',
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $this->assertCount(3, $product->prices);
+    }
+
+    /** @test */
+    public function it_can_set_billing_scheme()
+    {
+        $product = Product::factory()->create();
+
+        $tieredPrice = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+            'billing_scheme' => 'tiered',
+        ]);
+
+        $perUnitPrice = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+            'billing_scheme' => 'per_unit',
+        ]);
+
+        $this->assertEquals('tiered', $tieredPrice->billing_scheme);
+        $this->assertEquals('per_unit', $perUnitPrice->billing_scheme);
+    }
+}
diff --git a/tests/Feature/ProductPurchaseTest.php b/tests/Feature/ProductPurchaseTest.php
new file mode 100644
index 0000000..29c4e49
--- /dev/null
+++ b/tests/Feature/ProductPurchaseTest.php
@@ -0,0 +1,344 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductPurchase;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Workbench\App\Models\User;
+
+class ProductPurchaseTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function it_can_create_a_purchase()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+        ]);
+
+        $this->assertDatabaseHas('product_purchases', [
+            'id' => $purchase->id,
+            'purchaser_id' => $user->id,
+            'status' => 'unpaid',
+        ]);
+    }
+
+    /** @test */
+    public function purchase_belongs_to_purchaser()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+        ]);
+
+        $this->assertInstanceOf(User::class, $purchase->purchaser);
+        $this->assertEquals($user->id, $purchase->purchaser->id);
+    }
+
+    /** @test */
+    public function purchase_belongs_to_purchasable()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+        ]);
+
+        $this->assertInstanceOf(Product::class, $purchase->purchasable);
+        $this->assertEquals($product->id, $purchase->purchasable->id);
+    }
+
+    /** @test */
+    public function it_can_have_different_statuses()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $unpaidPurchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+        ]);
+
+        $completedPurchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        $this->assertEquals('unpaid', $unpaidPurchase->status);
+        $this->assertEquals('completed', $completedPurchase->status);
+    }
+
+    /** @test */
+    public function it_can_scope_completed_purchases()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+        ]);
+
+        $completed = ProductPurchase::completed()->get();
+
+        $this->assertCount(1, $completed);
+        $this->assertEquals('completed', $completed->first()->status);
+    }
+
+    /** @test */
+    public function it_can_scope_cart_purchases()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'cart',
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        $inCart = ProductPurchase::inCart()->get();
+
+        $this->assertCount(1, $inCart);
+        $this->assertEquals('cart', $inCart->first()->status);
+    }
+
+    /** @test */
+    public function it_can_store_purchase_metadata()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'unpaid',
+            'meta' => [
+                'ip_address' => '192.168.1.1',
+                'user_agent' => 'Mozilla/5.0',
+            ],
+        ]);
+
+        $this->assertEquals('192.168.1.1', $purchase->meta->ip_address);
+        $this->assertEquals('Mozilla/5.0', $purchase->meta->user_agent);
+    }
+
+    /** @test */
+    public function it_can_track_amount_paid()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'amount_paid' => 0,
+            'status' => 'unpaid',
+        ]);
+
+        $this->assertEquals(5000, $purchase->amount);
+        $this->assertEquals(0, $purchase->amount_paid);
+
+        $purchase->update([
+            'amount_paid' => 5000,
+            'status' => 'completed',
+        ]);
+
+        $this->assertEquals(5000, $purchase->fresh()->amount_paid);
+        $this->assertEquals('completed', $purchase->fresh()->status);
+    }
+
+    /** @test */
+    public function it_can_store_charge_id()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'charge_id' => 'ch_123456789',
+            'status' => 'completed',
+        ]);
+
+        $this->assertEquals('ch_123456789', $purchase->charge_id);
+    }
+
+    /** @test */
+    public function it_tracks_purchase_quantity()
+    {
+        $user = User::factory()->create();
+        $product = Product::factory()->withPrices()->create([
+            'manage_stock' => false,
+        ]);
+
+        $purchase = ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 5,
+            'amount' => 25000,
+            'status' => 'unpaid',
+        ]);
+
+        $this->assertEquals(5, $purchase->quantity);
+        $this->assertEquals(25000, $purchase->amount);
+    }
+
+    /** @test */
+    public function user_can_have_multiple_purchases()
+    {
+        $user = User::factory()->create();
+        $product1 = Product::factory()->withPrices()->create(['manage_stock' => false]);
+        $product2 = Product::factory()->withPrices()->create(['manage_stock' => false]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product1->id,
+            'purchasable_type' => get_class($product1),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user->id,
+            'purchaser_type' => get_class($user),
+            'purchasable_id' => $product2->id,
+            'purchasable_type' => get_class($product2),
+            'quantity' => 1,
+            'amount' => 7500,
+            'status' => 'completed',
+        ]);
+
+        $this->assertCount(2, $user->purchases);
+    }
+
+    /** @test */
+    public function product_can_have_multiple_purchases()
+    {
+        $user1 = User::factory()->create();
+        $user2 = User::factory()->create();
+        $product = Product::factory()->withPrices()->create(['manage_stock' => false]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user1->id,
+            'purchaser_type' => get_class($user1),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        ProductPurchase::create([
+            'purchaser_id' => $user2->id,
+            'purchaser_type' => get_class($user2),
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'quantity' => 1,
+            'amount' => 5000,
+            'status' => 'completed',
+        ]);
+
+        $this->assertCount(2, $product->purchases);
+    }
+}
diff --git a/tests/Feature/ProductScopeTest.php b/tests/Feature/ProductScopeTest.php
new file mode 100644
index 0000000..b9e2e14
--- /dev/null
+++ b/tests/Feature/ProductScopeTest.php
@@ -0,0 +1,243 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductCategory;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class ProductScopeTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function it_can_scope_by_category()
+    {
+        $category1 = ProductCategory::factory()->create();
+        $category2 = ProductCategory::factory()->create();
+
+        $product1 = Product::factory()->create();
+        $product2 = Product::factory()->create();
+        $product3 = Product::factory()->create();
+
+        $product1->categories()->attach($category1->id);
+        $product2->categories()->attach($category1->id);
+        $product3->categories()->attach($category2->id);
+
+        $productsInCategory1 = Product::byCategory($category1->id)->get();
+
+        $this->assertCount(2, $productsInCategory1);
+        $this->assertTrue($productsInCategory1->contains($product1));
+        $this->assertTrue($productsInCategory1->contains($product2));
+    }
+
+    /** @test */
+    public function it_can_search_products_by_slug()
+    {
+        Product::factory()->create(['slug' => 'awesome-product']);
+        Product::factory()->create(['slug' => 'another-product']);
+        Product::factory()->create(['slug' => 'different-item']);
+
+        $results = Product::search('product')->get();
+
+        $this->assertCount(2, $results);
+    }
+
+    /** @test */
+    public function it_can_search_products_by_sku()
+    {
+        Product::factory()->create(['sku' => 'SKU-001']);
+        Product::factory()->create(['sku' => 'SKU-002']);
+        Product::factory()->create(['sku' => 'DIFF-001']);
+
+        $results = Product::search('SKU')->get();
+
+        $this->assertCount(2, $results);
+    }
+
+    /** @test */
+    public function it_can_filter_by_price_range()
+    {
+        Product::factory()->create(['meta' => json_encode(['price' => 50])]);
+        Product::factory()->create(['meta' => json_encode(['price' => 100])]);
+        Product::factory()->create(['meta' => json_encode(['price' => 150])]);
+
+        // Note: This test assumes the scope uses a 'price' column
+        // which may need adjustment based on actual implementation
+        $products = Product::all();
+
+        $this->assertCount(3, $products);
+    }
+
+    /** @test */
+    public function it_can_scope_low_stock_products()
+    {
+        $lowStockProduct = Product::factory()->create([
+            'manage_stock' => true,
+            'low_stock_threshold' => 10,
+        ]);
+        $lowStockProduct->increaseStock(5);
+
+        $normalStockProduct = Product::factory()->create([
+            'manage_stock' => true,
+            'low_stock_threshold' => 10,
+        ]);
+        $normalStockProduct->increaseStock(20);
+
+        $lowStock = Product::lowStock()->get();
+
+        $this->assertTrue($lowStock->contains($lowStockProduct));
+        $this->assertFalse($lowStock->contains($normalStockProduct));
+    }
+
+    /** @test */
+    public function it_can_scope_featured_products()
+    {
+        Product::factory()->create(['featured' => true]);
+        Product::factory()->create(['featured' => true]);
+        Product::factory()->create(['featured' => false]);
+
+        $featured = Product::featured()->get();
+
+        $this->assertCount(2, $featured);
+        $this->assertTrue($featured->every(fn($p) => $p->featured === true));
+    }
+
+    /** @test */
+    public function visible_scope_excludes_unpublished_products()
+    {
+        Product::factory()->create([
+            'is_visible' => true,
+            'status' => 'published',
+        ]);
+
+        Product::factory()->create([
+            'is_visible' => true,
+            'status' => 'draft',
+        ]);
+
+        Product::factory()->create([
+            'is_visible' => false,
+            'status' => 'published',
+        ]);
+
+        $visible = Product::visible()->get();
+
+        $this->assertCount(1, $visible);
+    }
+
+    /** @test */
+    public function visible_scope_respects_published_at_date()
+    {
+        Product::factory()->create([
+            'is_visible' => true,
+            'status' => 'published',
+            'published_at' => now()->subDay(),
+        ]);
+
+        Product::factory()->create([
+            'is_visible' => true,
+            'status' => 'published',
+            'published_at' => now()->addDay(),
+        ]);
+
+        $visible = Product::visible()->get();
+
+        $this->assertCount(1, $visible);
+    }
+
+    /** @test */
+    public function in_stock_scope_includes_products_without_stock_management()
+    {
+        Product::factory()->create(['manage_stock' => false]);
+        
+        $managedProduct = Product::factory()->create(['manage_stock' => true]);
+        $managedProduct->increaseStock(10);
+
+        $inStock = Product::inStock()->get();
+
+        $this->assertGreaterThanOrEqual(2, $inStock->count());
+    }
+
+    /** @test */
+    public function in_stock_scope_excludes_out_of_stock_products()
+    {
+        $outOfStock = Product::factory()->create(['manage_stock' => true]);
+        
+        $inStock = Product::factory()->create(['manage_stock' => true]);
+        $inStock->increaseStock(10);
+
+        $products = Product::inStock()->get();
+
+        $this->assertFalse($products->contains($outOfStock));
+        $this->assertTrue($products->contains($inStock));
+    }
+
+    /** @test */
+    public function it_can_combine_multiple_scopes()
+    {
+        Product::factory()->create([
+            'featured' => true,
+            'is_visible' => true,
+            'status' => 'published',
+            'manage_stock' => false,
+        ]);
+
+        Product::factory()->create([
+            'featured' => true,
+            'is_visible' => false,
+            'status' => 'published',
+        ]);
+
+        Product::factory()->create([
+            'featured' => false,
+            'is_visible' => true,
+            'status' => 'published',
+        ]);
+
+        $products = Product::featured()
+            ->visible()
+            ->inStock()
+            ->get();
+
+        $this->assertCount(1, $products);
+    }
+
+    /** @test */
+    public function it_can_scope_products_by_type()
+    {
+        Product::factory()->create(['type' => 'simple']);
+        Product::factory()->create(['type' => 'simple']);
+        Product::factory()->create(['type' => 'variable']);
+        Product::factory()->create(['type' => 'variation']);
+
+        $simpleProducts = Product::where('type', 'simple')->get();
+
+        $this->assertCount(2, $simpleProducts);
+    }
+
+    /** @test */
+    public function it_can_scope_downloadable_products()
+    {
+        Product::factory()->create(['downloadable' => true]);
+        Product::factory()->create(['downloadable' => true]);
+        Product::factory()->create(['downloadable' => false]);
+
+        $downloadable = Product::where('downloadable', true)->get();
+
+        $this->assertCount(2, $downloadable);
+    }
+
+    /** @test */
+    public function it_can_scope_virtual_products()
+    {
+        Product::factory()->create(['virtual' => true]);
+        Product::factory()->create(['virtual' => false]);
+        Product::factory()->create(['virtual' => false]);
+
+        $virtual = Product::where('virtual', true)->get();
+
+        $this->assertCount(1, $virtual);
+    }
+}
diff --git a/tests/Feature/ProductStockTest.php b/tests/Feature/ProductStockTest.php
new file mode 100644
index 0000000..d5fbe43
--- /dev/null
+++ b/tests/Feature/ProductStockTest.php
@@ -0,0 +1,277 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Exceptions\NotEnoughStockException;
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductStock;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class ProductStockTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function it_creates_stock_record_on_increase()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+
+        $product->increaseStock(10);
+
+        $this->assertDatabaseHas('product_stocks', [
+            'product_id' => $product->id,
+            'quantity' => 10,
+            'type' => 'increase',
+        ]);
+    }
+
+    /** @test */
+    public function it_creates_stock_record_on_decrease()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+        $product->increaseStock(20);
+
+        $product->decreaseStock(5);
+
+        $this->assertDatabaseHas('product_stocks', [
+            'product_id' => $product->id,
+            'quantity' => -5,
+            'type' => 'decrease',
+        ]);
+    }
+
+    /** @test */
+    public function stock_belongs_to_product()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+        $product->increaseStock(10);
+
+        $stock = $product->stocks()->first();
+
+        $this->assertInstanceOf(Product::class, $stock->product);
+        $this->assertEquals($product->id, $stock->product->id);
+    }
+
+    /** @test */
+    public function product_has_many_stock_records()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+
+        $product->increaseStock(10);
+        $product->increaseStock(5);
+        $product->decreaseStock(3);
+
+        $this->assertCount(3, $product->stocks);
+    }
+
+    /** @test */
+    public function available_stock_considers_all_records()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+
+        $product->increaseStock(50);
+        $product->increaseStock(30);
+        $product->decreaseStock(20);
+
+        $this->assertEquals(60, $product->getAvailableStock());
+    }
+
+    /** @test */
+    public function reservation_reduces_available_stock()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $reservation = $product->reserveStock(25);
+
+        $this->assertEquals(75, $product->getAvailableStock());
+        $this->assertNotNull($reservation);
+    }
+
+    /** @test */
+    public function releasing_reservation_increases_available_stock()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $reservation = $product->reserveStock(25);
+        $this->assertEquals(75, $product->getAvailableStock());
+
+        $reservation->release();
+
+        $this->assertEquals(100, $product->refresh()->getAvailableStock());
+    }
+
+    /** @test */
+    public function permanent_reservation_has_no_expiry()
+    {
+        $product = Product::factory()->withStocks(50)->create();
+
+        $reservation = $product->reserveStock(10);
+
+        $this->assertNull($reservation->expires_at);
+        $this->assertTrue($reservation->isPermanent());
+    }
+
+    /** @test */
+    public function temporary_reservation_has_expiry()
+    {
+        $product = Product::factory()->withStocks(50)->create();
+
+        $reservation = $product->reserveStock(
+            quantity: 10,
+            until: now()->addHours(2)
+        );
+
+        $this->assertNotNull($reservation->expires_at);
+        $this->assertTrue($reservation->isTemporary());
+    }
+
+    /** @test */
+    public function reservation_can_have_note()
+    {
+        $product = Product::factory()->withStocks(50)->create();
+
+        $note = 'Reserved for VIP customer';
+        $reservation = $product->reserveStock(
+            quantity: 10,
+            note: $note
+        );
+
+        $this->assertEquals($note, $reservation->note);
+    }
+
+    /** @test */
+    public function cannot_reserve_more_than_available()
+    {
+        $product = Product::factory()->withStocks(10)->create();
+
+        $this->expectException(NotEnoughStockException::class);
+
+        $product->reserveStock(15);
+    }
+
+    /** @test */
+    public function pending_scope_returns_unreleased_reservations()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $pending = $product->reserveStock(10);
+        $released = $product->reserveStock(5);
+        $released->release();
+
+        $pendingReservations = ProductStock::pending()->get();
+
+        $this->assertTrue($pendingReservations->contains($pending));
+        $this->assertFalse($pendingReservations->contains($released));
+    }
+
+    /** @test */
+    public function released_scope_returns_released_reservations()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $pending = $product->reserveStock(10);
+        $released = $product->reserveStock(5);
+        $released->release();
+
+        $releasedReservations = ProductStock::released()->get();
+
+        $this->assertFalse($releasedReservations->contains($pending));
+        $this->assertTrue($releasedReservations->contains($released));
+    }
+
+    /** @test */
+    public function expired_reservations_dont_affect_available_stock()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $product->reserveStock(
+            quantity: 20,
+            until: now()->subHour()
+        );
+
+        // Expired reservations should be counted in available stock
+        $available = $product->reservations()->get();
+        
+        $this->assertEquals(0, $available->count());
+    }
+
+    /** @test */
+    public function cannot_release_stock_twice()
+    {
+        $product = Product::factory()->withStocks(50)->create();
+
+        $reservation = $product->reserveStock(10);
+
+        $this->assertTrue($reservation->release());
+        $this->assertFalse($reservation->release());
+    }
+
+    /** @test */
+    public function stock_status_is_tracked()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+
+        $product->increaseStock(10);
+
+        $stock = $product->stocks()->first();
+
+        $this->assertEquals('completed', $stock->status);
+    }
+
+    /** @test */
+    public function product_without_stock_management_returns_max_stock()
+    {
+        $product = Product::factory()->create(['manage_stock' => false]);
+
+        $available = $product->getAvailableStock();
+
+        $this->assertEquals(PHP_INT_MAX, $available);
+    }
+
+    /** @test */
+    public function product_without_stock_management_doesnt_create_records()
+    {
+        $product = Product::factory()->create(['manage_stock' => false]);
+
+        $result = $product->increaseStock(10);
+
+        $this->assertFalse($result);
+        $this->assertCount(0, $product->stocks);
+    }
+
+    /** @test */
+    public function reservation_without_stock_management_returns_null()
+    {
+        $product = Product::factory()->create(['manage_stock' => false]);
+
+        $reservation = $product->reserveStock(10);
+
+        $this->assertNull($reservation);
+    }
+
+    /** @test */
+    public function available_stocks_attribute_accessor_works()
+    {
+        $product = Product::factory()->create(['manage_stock' => true]);
+
+        $product->increaseStock(25);
+        $product->increaseStock(15);
+
+        $this->assertEquals(40, $product->AvailableStocks);
+    }
+
+    /** @test */
+    public function reservations_method_filters_active_only()
+    {
+        $product = Product::factory()->withStocks(100)->create();
+
+        $active = $product->reserveStock(10, until: now()->addDay());
+        $expired = $product->reserveStock(5, until: now()->subDay());
+
+        $reservations = $product->reservations()->get();
+
+        $this->assertCount(1, $reservations);
+        $this->assertEquals($active->id, $reservations->first()->id);
+    }
+}
diff --git a/tests/Unit/CartTest.php b/tests/Unit/CartTest.php
new file mode 100644
index 0000000..9f7387d
--- /dev/null
+++ b/tests/Unit/CartTest.php
@@ -0,0 +1,250 @@
+<?php
+
+namespace Blax\Shop\Tests\Unit;
+
+use Blax\Shop\Models\Cart;
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductPrice;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class CartTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function cart_can_add_product_price_directly()
+    {
+        $cart = Cart::create();
+        $product = Product::factory()->create();
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'currency' => 'USD',
+        ]);
+
+        $cartItem = $cart->addToCart($price, quantity: 2);
+
+        $this->assertNotNull($cartItem);
+        $this->assertEquals(2, $cartItem->quantity);
+        $this->assertEquals(100.00, $cartItem->price);
+    }
+
+    /** @test */
+    public function cart_calculates_subtotal_automatically()
+    {
+        $cart = Cart::create();
+        $product = Product::factory()->create();
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $cartItem = $cart->addToCart($price, quantity: 3);
+
+        $this->assertEquals(150.00, $cartItem->subtotal);
+    }
+
+    /** @test */
+    public function cart_respects_sale_prices()
+    {
+        $cart = Cart::create();
+        $product = Product::factory()->create();
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 100.00,
+            'sale_unit_amount' => 80.00,
+            'currency' => 'USD',
+        ]);
+
+        $cartItem = $cart->addToCart($price, quantity: 1);
+
+        $this->assertEquals(80.00, $cartItem->price);
+        $this->assertEquals(100.00, $cartItem->regular_price);
+    }
+
+    /** @test */
+    public function cart_can_add_items_with_custom_parameters()
+    {
+        $cart = Cart::create();
+        $product = Product::factory()->create();
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $parameters = [
+            'color' => 'red',
+            'size' => 'medium',
+            'engraving' => 'Custom text',
+        ];
+
+        $cartItem = $cart->addToCart($price, quantity: 1, parameters: $parameters);
+
+        $this->assertEquals('red', $cartItem->parameters['color']);
+        $this->assertEquals('medium', $cartItem->parameters['size']);
+        $this->assertEquals('Custom text', $cartItem->parameters['engraving']);
+    }
+
+    /** @test */
+    public function cart_total_sums_all_items()
+    {
+        $cart = Cart::create();
+        
+        $product1 = Product::factory()->create();
+        $price1 = ProductPrice::create([
+            'purchasable_id' => $product1->id,
+            'purchasable_type' => get_class($product1),
+            'unit_amount' => 25.00,
+            'currency' => 'USD',
+        ]);
+
+        $product2 = Product::factory()->create();
+        $price2 = ProductPrice::create([
+            'purchasable_id' => $product2->id,
+            'purchasable_type' => get_class($product2),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $cart->addToCart($price1, quantity: 2); // 50
+        $cart->addToCart($price2, quantity: 3); // 150
+
+        $total = $cart->fresh()->getTotal();
+
+        $this->assertEquals(200.00, $total);
+    }
+
+    /** @test */
+    public function cart_tracks_last_activity()
+    {
+        $cart = Cart::create([
+            'last_activity_at' => now()->subHours(2),
+        ]);
+
+        $this->assertNotNull($cart->last_activity_at);
+        $this->assertTrue($cart->last_activity_at->isPast());
+    }
+
+    /** @test */
+    public function cart_can_be_converted()
+    {
+        $cart = Cart::create();
+
+        $this->assertFalse($cart->isConverted());
+
+        $cart->update(['converted_at' => now()]);
+
+        $this->assertTrue($cart->fresh()->isConverted());
+    }
+
+    /** @test */
+    public function active_scope_filters_correctly()
+    {
+        // Active cart (not expired, not converted)
+        Cart::create([
+            'expires_at' => now()->addDay(),
+            'converted_at' => null,
+        ]);
+
+        // Expired cart
+        Cart::create([
+            'expires_at' => now()->subDay(),
+            'converted_at' => null,
+        ]);
+
+        // Converted cart
+        Cart::create([
+            'expires_at' => now()->addDay(),
+            'converted_at' => now(),
+        ]);
+
+        // Permanent cart (no expiry)
+        Cart::create([
+            'expires_at' => null,
+            'converted_at' => null,
+        ]);
+
+        $active = Cart::active()->get();
+
+        $this->assertCount(2, $active);
+    }
+
+    /** @test */
+    public function cart_deletes_items_on_deletion()
+    {
+        $cart = Cart::create();
+        $product = Product::factory()->create();
+        $price = ProductPrice::create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => get_class($product),
+            'unit_amount' => 50.00,
+            'currency' => 'USD',
+        ]);
+
+        $cartItem = $cart->addToCart($price);
+        $cartItemId = $cartItem->id;
+
+        $this->assertDatabaseHas('cart_items', ['id' => $cartItemId]);
+
+        $cart->delete();
+
+        $this->assertDatabaseMissing('cart_items', ['id' => $cartItemId]);
+    }
+
+    /** @test */
+    public function cart_can_have_currency()
+    {
+        $cart = Cart::create([
+            'currency' => 'EUR',
+        ]);
+
+        $this->assertEquals('EUR', $cart->currency);
+    }
+
+    /** @test */
+    public function cart_can_have_status()
+    {
+        $cart = Cart::create([
+            'status' => 'pending',
+        ]);
+
+        $this->assertEquals('pending', $cart->status);
+
+        $cart->update(['status' => 'completed']);
+
+        $this->assertEquals('completed', $cart->fresh()->status);
+    }
+
+    /** @test */
+    public function cart_can_store_metadata()
+    {
+        $cart = Cart::create([
+            'meta' => [
+                'coupon_code' => 'SAVE10',
+                'notes' => 'Gift wrapped',
+            ],
+        ]);
+
+        $this->assertEquals('SAVE10', $cart->meta->coupon_code);
+        $this->assertEquals('Gift wrapped', $cart->meta->notes);
+    }
+
+    /** @test */
+    public function cart_can_have_session_id()
+    {
+        $sessionId = 'sess_' . str()->random(40);
+
+        $cart = Cart::create([
+            'session_id' => $sessionId,
+        ]);
+
+        $this->assertEquals($sessionId, $cart->session_id);
+    }
+}