diff --git a/purchase_product_pack/tests/__init__.py b/purchase_product_pack/tests/__init__.py
index d3ba0b783..1cc0319db 100644
--- a/purchase_product_pack/tests/__init__.py
+++ b/purchase_product_pack/tests/__init__.py
@@ -2,3 +2,4 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 
 from . import test_purchase_product_pack
+from . import test_purchase_order
diff --git a/purchase_product_pack/tests/test_purchase_order.py b/purchase_product_pack/tests/test_purchase_order.py
new file mode 100644
index 000000000..3e49f07c0
--- /dev/null
+++ b/purchase_product_pack/tests/test_purchase_order.py
@@ -0,0 +1,39 @@
+from odoo.tests.common import TransactionCase
+from odoo.exceptions import UserError
+
+class TestPurchaseOrder(TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.purchase_order = cls.env["purchase.order"].create({
+            "partner_id": cls.env.ref("base.res_partner_12").id,
+        })
+
+        cls.product = cls.env["product.product"].create({
+            'name': 'Test Product',
+            'type': 'consu',
+        })
+
+        cls.pack_product = cls.env["product.product"].create({
+            'name': 'Pack Product',
+            'type': 'consu',
+            'pack_ok': True,
+            'pack_type': 'detailed',
+        })
+
+    def test_copy_data(self):
+        order_line = self.env["purchase.order.line"].create({
+            'order_id': self.purchase_order.id,
+            'product_id': self.product.id,
+            'name': self.product.name,
+            'product_qty': 1,
+            'price_unit': 100,
+        })
+
+        data = self.purchase_order.copy_data()
+        self.assertTrue(data)
+        self.assertIn('order_line', data[0])
+        self.assertEqual(len(data[0]['order_line']), 1)
+        self.assertEqual(data[0]['order_line'][0][2]['product_id'], self.product.id)
+
+    
\ No newline at end of file