[FIX] website: add SQL performance test for page loading

This will ensure the performances stay correct for a blank page (no layout),
a standard page and a homepage (which has its own controller).

Related to #47257
task-2211013

X-original-commit: 08e01b5fc4a71b8f7639a953137fbb546ddf3b3e

addons/website/tests/__init__.py

@@ -8,6 +8,7 @@ from . import test_get_current_website
 from . import test_lang_url
 from . import test_menu
 from . import test_page
+from . import test_performance
 from . import test_qweb
 from . import test_res_users
 from . import test_theme

addons/website/tests/test_performance.py

@@ -0,0 +1,62 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo.tests.common import HttpCase
+
+EXTRA_REQUEST = 5
+""" During tests, the query on 'base_registry_signaling, base_cache_signaling'
+    won't be executed on hot state, but 6 new queries related to the test cursor
+    will be added:
+        SAVEPOINT "test_cursor_4"
+        SAVEPOINT "test_cursor_4"
+        ROLLBACK TO SAVEPOINT "test_cursor_4"
+        SAVEPOINT "test_cursor_5"
+        [.. usual SQL Queries .. ]
+        SAVEPOINT "test_cursor_5"
+        ROLLBACK TO SAVEPOINT "test_cursor_5"
+"""
+
+
+class TestWebsitePerformance(HttpCase):
+
+    def setUp(self):
+        super().setUp()
+
+        self.page = self.env['website.page'].create({
+            'url': '/sql_page',
+            'name': 'Page Test SQL Perf',
+            'type': 'qweb',
+            'arch': '<t name="Contact Us" t-name="website.contactus"> \
+                       <t t-call="website.layout"> \
+                         <div id="wrap"><div class="oe_structure"/></div> \
+                       </t> \
+                     </t>',
+            'key': 'website.page_test_perf_sql',
+            'is_published': True,
+        })
+
+    def _get_url_hot_query(self, url):
+        # ensure worker is in hot state
+        self.url_open(url)
+        self.url_open(url)
+
+        sql_count = self.registry.test_cr.sql_log_count
+        self.url_open(url)
+        return self.registry.test_cr.sql_log_count - sql_count
+
+    def test_10_perf_sql_queries_page(self):
+        # standard website.page
+        expected_sql = 14 + EXTRA_REQUEST
+        self.assertEqual(self._get_url_hot_query(self.page.url), expected_sql)
+
+    def test_20_perf_sql_queries_homepage(self):
+        # homepage "/" has its own controller
+        # add 5 queries for test environment (RELEASE/SAVEPOINT/ROLLBACK test_cursor)
+        expected_sql = 21 + EXTRA_REQUEST
+        self.assertEqual(self._get_url_hot_query('/'), expected_sql)
+
+    def test_30_perf_sql_queries_page_no_layout(self):
+        # website.page with no call to layout templates
+        self.page.arch = '<div>I am a blank page</div>'
+        expected_sql = 8 + EXTRA_REQUEST
+        self.assertEqual(self._get_url_hot_query(self.page.url), expected_sql)