[IMP] purchase_product_pack: Don't depend on demo data for tests + simplification

Demo data can make tests to fail in integration environments or locally
modified ones, so let's remove them and use data created on the test
itself.

We also improve the containerization of the elements of the tests.

In the same movement, we have simplified the code of the test for doing
the same with less lines and in a clearer way.

Author: pedrobaeza

purchase_product_pack/README.rst

@@ -11,7 +11,7 @@ Purchase Product Pack
    !! This file is generated by oca-gen-addon-readme !!
    !! changes will be overwritten.                   !!
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-   !! source digest: sha256:c2dac7004783b8033eccca5252ad883ba2106fc36f774bb5680b539f372092be
+   !! source digest: sha256:174830ce41fbd8cb9d00dc617945dbe3dbdf80407c03659afcd2516798284699
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 .. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png

purchase_product_pack/__manifest__.py

@@ -2,7 +2,7 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 {
     "name": "Purchase Product Pack",
-    "version": "18.0.1.0.0",
+    "version": "18.0.1.0.1",
     "category": "Purchase",
     "summary": "This module allows you to buy product packs",
     "website": "https://github.com/OCA/product-pack",

purchase_product_pack/static/description/index.html

@@ -372,7 +372,7 @@ <h1>Purchase Product Pack</h1>
 !! This file is generated by oca-gen-addon-readme !!
 !! changes will be overwritten.                   !!
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-!! source digest: sha256:c2dac7004783b8033eccca5252ad883ba2106fc36f774bb5680b539f372092be
+!! source digest: sha256:174830ce41fbd8cb9d00dc617945dbe3dbdf80407c03659afcd2516798284699
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
 <p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/license-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/product-pack/tree/18.0/purchase_product_pack"><img alt="OCA/product-pack" src="https://img.shields.io/badge/github-OCA%2Fproduct--pack-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/product-pack-18-0/product-pack-18-0-purchase_product_pack"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/product-pack&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
 <p>This module adds <em>Product Pack</em> functionality to purchase orders. You

purchase_product_pack/tests/common.py

@@ -0,0 +1,29 @@
+# Copyright 2025 Tecnativa - Pedro M. Baeza
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo.addons.product_pack.tests.common import ProductPackCommon
+
+
+class TestPurchaseProductPackBase(ProductPackCommon):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.partner = cls.env["res.partner"].create({"name": "Test purchase pack"})
+        cls.pack.standard_price = 5
+        cls.component1.standard_price = 12
+        cls.component2.standard_price = 18
+        cls.purchase_order = cls.env["purchase.order"].create(
+            {"partner_id": cls.partner.id}
+        )
+
+    def _add_po_line(self, product=None, sequence=10):
+        product = product or self.pack
+        return self.env["purchase.order.line"].create(
+            {
+                "order_id": self.purchase_order.id,
+                "name": product.name,
+                "product_id": product.id,
+                "product_qty": 1,
+                "sequence": sequence,
+            }
+        )