[FIX] website_sale: make add_to_cart_snippet_tour run as expected

Add a setUpClass with a dummy payment provider to ensure that at
least one is always available when the tour is running, and set
the company country_id to None before starting the tour to avoid
any country dependant fields to block the tour during the checkout
process.

closes odoo/odoo#105700

X-original-commit: 779965fbf0471f2b003692f1afa541864a396651
Signed-off-by: William Braeckman (wbr) <wbr@odoo.com>
Signed-off-by: Nicolas Viseur (vin) <vin@odoo.com>

addons/website_sale/tests/test_website_sale_add_to_cart_snippet.py

@@ -5,5 +5,32 @@ from odoo.tests import HttpCase, tagged
 
 @tagged('post_install', '-at_install')
 class TestAddToCartSnippet(HttpCase):
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        # Create a dummy payment provider to ensure that the tour has at least one available to it.
+        arch = """
+        <form action="dummy" method="post">
+            <input type="hidden" name="view_id" t-att-value="viewid"/>
+            <input type="hidden" name="user_id" t-att-value="user_id.id"/>
+        </form>
+        """
+        redirect_form = cls.env['ir.ui.view'].create({
+            'name': "Dummy Redirect Form",
+            'type': 'qweb',
+            'arch': arch,
+        })
+        cls.dummy_provider = cls.env['payment.provider'].create({
+            'name': "Dummy Provider",
+            'code': 'none',
+            'state': 'test',
+            'is_published': True,
+            'allow_tokenization': True,
+            'redirect_form_view_id': redirect_form.id,
+        })
+
     def test_configure_product(self):
+        # Reset the company country id, which ensure that no country dependant fields are blocking the address form.
+        self.env.company.country_id = self.env.ref('base.us')
         self.start_tour("/", 'add_to_cart_snippet_tour', login="admin")