diff --git a/auth_signup_verify_email/tests/test_verify_email.py b/auth_signup_verify_email/tests/test_verify_email.py
index a3649cd7d..44ef987bb 100644
--- a/auth_signup_verify_email/tests/test_verify_email.py
+++ b/auth_signup_verify_email/tests/test_verify_email.py
@@ -6,6 +6,7 @@ from urllib import urlencode
 from lxml.html import document_fromstring
 from openerp import _
 from openerp.tests.common import HttpCase
+from openerp.tools import mute_logger
 
 
 class UICase(HttpCase):
@@ -58,6 +59,8 @@ class UICase(HttpCase):
         doc = self.html_doc(data=self.data)
         self.assertTrue(self.search_text(doc, self.msg["badmail"]))
 
+    @mute_logger("openerp.addons.mail.models.mail_mail")
+    @mute_logger("openerp.addons.auth_signup_verify_email.controllers.main")
     def test_good_email(self):
         """Test acceptance of good emails.
 
diff --git a/dead_mans_switch_client/tests/test_dead_mans_switch_client.py b/dead_mans_switch_client/tests/test_dead_mans_switch_client.py
index e4d849f93..65c2b2572 100644
--- a/dead_mans_switch_client/tests/test_dead_mans_switch_client.py
+++ b/dead_mans_switch_client/tests/test_dead_mans_switch_client.py
@@ -2,14 +2,17 @@
 # © 2015 Therp BV <http://therp.nl>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 from openerp.tests.common import TransactionCase
+from openerp.tools import mute_logger
 
 
 class TestDeadMansSwitchClient(TransactionCase):
     def test_dead_mans_switch_client(self):
         # test unconfigured case
-        self.env['ir.config_parameter'].search([
-            ('key', '=', 'dead_mans_switch_client.url')]).unlink()
-        self.env['dead.mans.switch.client'].alive()
+        with mute_logger("openerp.addons.dead_mans_switch_client"
+                         ".models.dead_mans_switch_client"):
+            self.env['ir.config_parameter'].search([
+                ('key', '=', 'dead_mans_switch_client.url')]).unlink()
+            self.env['dead.mans.switch.client'].alive()
         # test configured case
         self.env['ir.config_parameter'].set_param(
             'dead_mans_switch_client.url', 'fake_url')
diff --git a/html_image_url_extractor/tests/test_extractor.py b/html_image_url_extractor/tests/test_extractor.py
index c511aa5f8..c68193a3c 100644
--- a/html_image_url_extractor/tests/test_extractor.py
+++ b/html_image_url_extractor/tests/test_extractor.py
@@ -4,6 +4,7 @@
 
 from lxml import etree
 from openerp.tests.common import TransactionCase
+from openerp.tools import mute_logger
 
 
 class ExtractorCase(TransactionCase):
@@ -44,6 +45,8 @@ class ExtractorCase(TransactionCase):
             self.assertEqual("/path/%d" % n, url)
         self.assertEqual(n, 0)
 
+    @mute_logger("openerp.addons.html_image_url_extractor.models"
+                 ".ir_fields_converter")
     def test_empty_html(self):
         """Empty HTML handled correctly."""
         for laps, text in self.imgs_from_html(""):
@@ -52,6 +55,8 @@ class ExtractorCase(TransactionCase):
         with self.assertRaises(etree.XMLSyntaxError):
             list(self.imgs_from_html("", fail=True))
 
+    @mute_logger("openerp.addons.html_image_url_extractor.models"
+                 ".ir_fields_converter")
     def test_false_html(self):
         """``False`` HTML handled correctly."""
         for laps, text in self.imgs_from_html(False):
@@ -60,6 +65,8 @@ class ExtractorCase(TransactionCase):
         with self.assertRaises(TypeError):
             list(self.imgs_from_html(False, fail=True))
 
+    @mute_logger("openerp.addons.html_image_url_extractor.models"
+                 ".ir_fields_converter")
     def test_bad_html(self):
         """Bad HTML handled correctly."""
         for laps, text in self.imgs_from_html("<<bad>"):