diff --git a/addons/web/tests/test_js.py b/addons/web/tests/test_js.py
index 1614be64c43..17eb5c8beb2 100644
--- a/addons/web/tests/test_js.py
+++ b/addons/web/tests/test_js.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+import re
 import odoo.tests
 
 
@@ -11,3 +12,19 @@ class WebSuite(odoo.tests.HttpCase):
 
     def test_01_js(self):
         self.phantom_js('/web/tests?mod=web', "", "", login='admin', timeout=300)
+
+    def test_check_suite(self):
+        # verify no js test is using `QUnit.only` as it forbid any other test to be executed
+        re_only = re.compile('QUnit\.only\(')
+
+        # As we currently aren't in a request context, we can't render `web.layout`.
+        # redefinied it as a minimal proxy template.
+        self.env.ref('web.layout').write({'arch_db': '<t t-name="web.layout"><t t-raw="head"/></t>'})
+
+        for asset in self.env['ir.qweb']._get_asset_content('web.qunit_suite', options={})[0]:
+            filename = asset['filename']
+            if not filename or asset['atype'] != 'text/javascript':
+                continue
+            with open(filename, 'r') as fp:
+                if re_only.search(fp.read()):
+                    self.fail("`QUnit.only()` used in file %r" % asset['url'])