test models

test/test_models.py

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+import pytest
+from django.contrib.auth import get_user_model
+from inventory.models import Product, Order, OrderItem
+
+User = get_user_model()
+
+@pytest.fixture
+def user():
+    return User.objects.create_user(
+        username='testuser',
+        password='password123',
+        email='[email protected]'
+    )
+
+@pytest.fixture
+def admin_user():
+    return User.objects.create_superuser(
+        username='adminuser',
+        password='adminpassword',
+        email='[email protected]'
+    )
+
+@pytest.mark.django_db
+def test_product_creation(user):
+    product = Product.objects.create(
+        name='Test Product',
+        description='Test Description',
+        quantity=100,
+        price=10,
+        owner=user
+    )
+
+    assert product.name == 'Test Product'
+    assert product.description == 'Test Description'
+    assert product.quantity == 100
+    assert product.price == 10
+    assert product.owner == user
+
+
+@pytest.mark.django_db
+def test_order_creation(user):
+    order = Order.objects.create(owner=user, status='pending')
+
+    assert order.owner == user
+    assert order.status == 'pending'
+    assert order.items.count() == 0
+
+
+@pytest.mark.django_db
+def test_order_item_creation(user):
+    product = Product.objects.create(
+        name='Test Product',
+        description='Test Description',
+        quantity=100,
+        price=10,
+        owner=user
+    )
+    order = Order.objects.create(owner=user, status='pending')
+    order_item = OrderItem.objects.create(order=order, product=product, quantity=10)
+
+    assert order_item.order == order
+    assert order_item.product == product
+    assert order_item.quantity == 10