diff --git a/website_sale_aplicoop/tests/test_phase3_confirm_eskaera.py b/website_sale_aplicoop/tests/test_phase3_confirm_eskaera.py
index d578417..e70d4f6 100644
--- a/website_sale_aplicoop/tests/test_phase3_confirm_eskaera.py
+++ b/website_sale_aplicoop/tests/test_phase3_confirm_eskaera.py
@@ -23,7 +23,6 @@ from datetime import timedelta
 from types import SimpleNamespace
 from unittest.mock import patch
 
-from odoo.exceptions import UserError
 from odoo.tests.common import TransactionCase
 
 from odoo.addons.website_sale_aplicoop.controllers.website_sale import (
@@ -34,6 +33,16 @@ REQUEST_PATCH_TARGET = (
     "odoo.addons.website_sale_aplicoop.controllers.website_sale.request"
 )
 
+# Languages the tests put in the request env. A fresh database (the CI's) only
+# has en_US active, and `env.lang` raises "Invalid language code" for the rest.
+TEST_LANGS = ("es_ES", "eu_ES", "ca_ES", "gl_ES", "pt_PT", "fr_FR", "it_IT")
+
+
+def _activate_test_langs(env):
+    """Activate TEST_LANGS: no translations are loaded, only the codes."""
+    for lang in TEST_LANGS:
+        env["res.lang"]._activate_lang(lang)
+
 
 def _env_with_lang(env, lang):
     """Return a cloned environment with language context set."""
@@ -59,9 +68,8 @@ def _build_request_mock(env, payload=None, website=None):
     """
     if website is None:
         # `pricelist_id` is what the pricing helpers read now that Eskaera
-        # prices with the standard website pricelist. Ordered by id on
-        # purpose: the multilang cases build an env whose language is not
-        # installed, and the default order is by the translated `name`.
+        # prices with the standard website pricelist. Ordered by id so the
+        # pick does not depend on the translated `name` of each language.
         website = SimpleNamespace(
             pricelist_id=env["product.pricelist"]
             .sudo()
@@ -364,6 +372,7 @@ class TestProcessCartItems(TransactionCase):
 
     def setUp(self):
         super().setUp()
+        _activate_test_langs(self.env)
         self.controller = AplicoopWebsiteSale()
 
         # Create test products
@@ -525,6 +534,7 @@ class TestBuildConfirmationMessage(TransactionCase):
 
     def setUp(self):
         super().setUp()
+        _activate_test_langs(self.env)
         self.controller = AplicoopWebsiteSale()
         self.user = self.env.ref("base.user_admin")
         self.partner = self.env.ref("base.partner_admin")
@@ -562,16 +572,11 @@ class TestBuildConfirmationMessage(TransactionCase):
     ):
         request_mock = _build_request_mock(_env_with_lang(self.env, lang))
         with patch(REQUEST_PATCH_TARGET, request_mock):
-            try:
-                return self.controller._build_confirmation_message(
-                    sale_order or self.sale_order,
-                    group_order or self.group_order,
-                    is_delivery=is_delivery,
-                )
-            except UserError as err:
-                if "Invalid language code" in str(err):
-                    self.skipTest(str(err))
-                raise
+            return self.controller._build_confirmation_message(
+                sale_order or self.sale_order,
+                group_order or self.group_order,
+                is_delivery=is_delivery,
+            )
 
     def test_build_confirmation_message_pickup(self):
         """Test confirmation message for pickup (not delivery)."""
@@ -669,6 +674,7 @@ class TestConfirmEskaera_Integration(TransactionCase):
 
     def setUp(self):
         super().setUp()
+        _activate_test_langs(self.env)
         self.controller = AplicoopWebsiteSale()
         self.consumer_group = self.env["res.partner"].create(
             {