diff --git a/swh/web/tests/api/test_apidoc.py b/swh/web/tests/api/test_apidoc.py
--- a/swh/web/tests/api/test_apidoc.py
+++ b/swh/web/tests/api/test_apidoc.py
@@ -83,7 +83,7 @@
         rv = self.client.get('/api/1/some/doc/route/')
 
         # then
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertTemplateUsed('api/apidoc.html')
 
     def test_apidoc_route_fn(self):
@@ -92,7 +92,7 @@
         rv = self.client.get('/api/1/some/1/1/')
 
         # then
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
 
     @staticmethod
     @api_route(r'/some/full/(?P<myarg>[0-9]+)/(?P<myotherarg>[0-9]+)/',
@@ -109,7 +109,7 @@
         rv = self.client.get('/api/1/some/complete/doc/route/')
 
         # then
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertTemplateUsed('api/apidoc.html')
 
     def test_apidoc_full_stack_fn(self):
@@ -117,7 +117,7 @@
         rv = self.client.get('/api/1/some/full/1/1/')
 
         # then
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
 
     def test_api_doc_parse_httpdomain(self):
         doc_data = {
diff --git a/swh/web/tests/api/test_apiresponse.py b/swh/web/tests/api/test_apiresponse.py
--- a/swh/web/tests/api/test_apiresponse.py
+++ b/swh/web/tests/api/test_apiresponse.py
@@ -131,7 +131,7 @@
             # then
             mock_filter.assert_called_with(request, data)
             self.assertEqual(rv.data, expected_data)
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             if mime_type == 'text/html':
                 self.assertEqual(rv.template_name, 'api/apidoc.html')
 
diff --git a/swh/web/tests/api/views/test_content.py b/swh/web/tests/api/views/test_content.py
--- a/swh/web/tests/api/views/test_content.py
+++ b/swh/web/tests/api/views/test_content.py
@@ -28,7 +28,7 @@
                       url_args={'q': 'sha1_git:%s' % content['sha1_git']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         content_url = reverse('api-1-content',
                               url_args={'q': 'sha1:%s' % content['sha1']})
@@ -43,7 +43,7 @@
                       url_args={'q': 'sha1:%s' % unknown_content_['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -60,7 +60,7 @@
                       url_args={'q': 'sha1_git:%s' % content['sha1_git']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         content_url = reverse('api-1-content',
                               url_args={'q': 'sha1:%s' % content['sha1']})
@@ -75,7 +75,7 @@
                       url_args={'q': 'sha1:%s' % unknown_content_['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -101,7 +101,7 @@
                       query_params={'per_page': 100})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         for entry in rv.data:
             content_sha1 = entry['sha1']
@@ -135,7 +135,7 @@
         url = reverse('api-1-content-symbol', url_args={'q': 'bar'})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -153,7 +153,7 @@
                       url_args={'q': 'sha1_git:%s' % content['sha1_git']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         content_url = reverse('api-1-content',
                               url_args={'q': 'sha1:%s' % content['sha1']})
@@ -172,7 +172,7 @@
                       url_args={'q': 'sha1_git:%s' % content['sha1_git']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         content_url = reverse('api-1-content',
                               url_args={'q': 'sha1:%s' % content['sha1']})
@@ -187,7 +187,7 @@
                       url_args={'q': 'sha1:%s' % unknown_content_['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -201,7 +201,7 @@
         url = reverse('api-1-content', {'q': 'sha1:%s' % content['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         expected_data = self.content_get_metadata(content['sha1'])
         for key, view_name in (('data_url', 'api-1-content-raw'),
@@ -219,7 +219,7 @@
         url = reverse('api-1-content',
                       url_args={'q': 'sha1:%s' % unknown_content_['sha1']})
         rv = self.client.get(url)
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -234,7 +234,7 @@
                       url_args={'q': 'sha256:%s' % unknown_content_['sha256']})
         rv = self.client.get(url, HTTP_ACCEPT='application/yaml')
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertTrue('application/yaml' in rv['Content-Type'])
 
         self.assertEqual(rv.data, {
@@ -250,7 +250,7 @@
                       url_args={'q': 'sha1:%s' % unknown_content_['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -301,7 +301,7 @@
                       url_args={'q': content['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
 
         self.assertEqual(rv.data, {
@@ -321,7 +321,7 @@
                       url_args={'q': content['sha1']})
         rv = self.client.get(url, HTTP_ACCEPT='application/yaml')
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/yaml')
 
         self.assertEqual(rv.data, {
@@ -346,7 +346,7 @@
             HTTP_ACCEPT='application/yaml'
         )
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertTrue('application/yaml' in rv['Content-Type'])
         self.assertEqual(rv.data, {
             'search_res': [
@@ -365,7 +365,7 @@
                       url_args={'q': unknown_content_['sha1']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'search_res': [
diff --git a/swh/web/tests/api/views/test_directory.py b/swh/web/tests/api/views/test_directory.py
--- a/swh/web/tests/api/views/test_directory.py
+++ b/swh/web/tests/api/views/test_directory.py
@@ -22,7 +22,7 @@
         url = reverse('api-1-directory', url_args={'sha1_git': directory})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
 
         expected_data = list(map(self._enrich_dir_data,
@@ -37,7 +37,7 @@
                       url_args={'sha1_git': unknown_directory_})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -55,7 +55,7 @@
                                 'path': path['name']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, self._enrich_dir_data(path))
 
@@ -68,7 +68,7 @@
                                 'path': path})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
diff --git a/swh/web/tests/api/views/test_identifiers.py b/swh/web/tests/api/views/test_identifiers.py
--- a/swh/web/tests/api/views/test_identifiers.py
+++ b/swh/web/tests/api/views/test_identifiers.py
@@ -58,7 +58,7 @@
                 'scheme_version': 1
             }
 
-            self.assertEqual(resp.status_code, 200)
+            self.assertEqual(resp.status_code, 200, resp.data)
             self.assertEqual(resp.data, expected_result)
 
     def test_swh_id_resolve_invalid(self):
@@ -68,7 +68,7 @@
 
         resp = self.client.get(url)
 
-        self.assertEqual(resp.status_code, 400)
+        self.assertEqual(resp.status_code, 400, resp.data)
 
     @given(unknown_content(), unknown_directory(), unknown_release(),
            unknown_revision(), unknown_snapshot())
@@ -88,4 +88,4 @@
 
             resp = self.client.get(url)
 
-            self.assertEqual(resp.status_code, 404)
+            self.assertEqual(resp.status_code, 404, resp.data)
diff --git a/swh/web/tests/api/views/test_origin.py b/swh/web/tests/api/views/test_origin.py
--- a/swh/web/tests/api/views/test_origin.py
+++ b/swh/web/tests/api/views/test_origin.py
@@ -33,7 +33,7 @@
         url = reverse('api-1-origin-visits', url_args={'origin_id': 2})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 400)
+        self.assertEqual(rv.status_code, 400, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'ValueError',
@@ -50,7 +50,7 @@
         url = reverse('api-1-origin-visits', url_args={'origin_id': 2})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 503)
+        self.assertEqual(rv.status_code, 503, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'StorageDBError',
@@ -68,7 +68,7 @@
         url = reverse('api-1-origin-visits', url_args={'origin_id': 2})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 503)
+        self.assertEqual(rv.status_code, 503, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'StorageAPIError',
@@ -100,7 +100,7 @@
 
             rv = self.client.get(url)
 
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
 
             for expected_visit in expected_visits:
@@ -132,7 +132,7 @@
                                     'visit_id': visit_id})
 
             rv = self.client.get(url)
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
 
             expected_visit = self.origin_visit_get_by(origin_id, visit_id)
@@ -161,7 +161,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -183,7 +183,7 @@
 
         expected_origin['origin_visits_url'] = origin_visits_url
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_origin)
 
@@ -202,7 +202,7 @@
 
         expected_origin['origin_visits_url'] = origin_visits_url
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_origin)
 
@@ -214,7 +214,7 @@
                                 'origin_url': new_origin['url']})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -386,7 +386,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
 
         start = origin_from_idx
         end = origin_from_idx + origin_count
diff --git a/swh/web/tests/api/views/test_person.py b/swh/web/tests/api/views/test_person.py
--- a/swh/web/tests/api/views/test_person.py
+++ b/swh/web/tests/api/views/test_person.py
@@ -24,7 +24,7 @@
 
         expected_person = self.person_get(person)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_person)
 
@@ -35,7 +35,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
diff --git a/swh/web/tests/api/views/test_release.py b/swh/web/tests/api/views/test_release.py
--- a/swh/web/tests/api/views/test_release.py
+++ b/swh/web/tests/api/views/test_release.py
@@ -35,7 +35,7 @@
         expected_release['author_url'] = author_url
         expected_release['target_url'] = target_url
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_release)
 
@@ -93,7 +93,7 @@
             expected_release['author_url'] = author_url
             expected_release['target_url'] = target_url
 
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
             self.assertEqual(rv.data, expected_release)
 
@@ -104,7 +104,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
diff --git a/swh/web/tests/api/views/test_revision.py b/swh/web/tests/api/views/test_revision.py
--- a/swh/web/tests/api/views/test_revision.py
+++ b/swh/web/tests/api/views/test_revision.py
@@ -33,7 +33,7 @@
 
         self._enrich_revision(expected_revision)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_revision)
 
@@ -44,7 +44,7 @@
                       url_args={'sha1_git': unknown_revision_})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -77,7 +77,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -91,7 +91,7 @@
                       url_args={'sha1_git': unknown_revision_})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -105,7 +105,7 @@
                       url_args={'origin_id': unknown_origin_id_})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -125,7 +125,7 @@
 
         self._enrich_revision(expected_revision)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_revision)
 
@@ -149,7 +149,7 @@
 
         self._enrich_revision(expected_revision)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_revision)
 
@@ -176,7 +176,7 @@
 
         self._enrich_revision(expected_revision)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_revision)
 
@@ -207,7 +207,7 @@
 
         self._enrich_revision(expected_revision)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_revision)
 
@@ -218,7 +218,7 @@
                       url_args={'origin_id': unknown_origin_id_})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -274,7 +274,7 @@
             'type': 'dir'
         }
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_result)
 
@@ -293,7 +293,7 @@
 
         has_next = len(expected_log) > per_page
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data,
                          expected_log[:-1] if has_next else expected_log)
@@ -314,7 +314,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -344,7 +344,7 @@
         expected_log.insert(0, prev_revision)
         expected_log = list(map(self._enrich_revision, expected_log))
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_log)
 
@@ -368,7 +368,7 @@
 
         has_next = len(expected_log) > per_page
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data,
                          expected_log[:-1] if has_next else expected_log)
@@ -393,7 +393,7 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertFalse(rv.has_header('Link'))
         self.assertEqual(
@@ -410,7 +410,7 @@
         # then
         rv = self.client.get('/api/1/revision/999/directory/some/path/to/dir/')
 
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'NotFoundExc',
@@ -454,7 +454,7 @@
         # then
         rv = self.client.get('/api/1/revision/999/directory/some/path/')
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, stub_dir)
 
@@ -483,7 +483,7 @@
         url = '/api/1/revision/666/directory/some/other/path/'
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, stub_content)
 
diff --git a/swh/web/tests/api/views/test_snapshot.py b/swh/web/tests/api/views/test_snapshot.py
--- a/swh/web/tests/api/views/test_snapshot.py
+++ b/swh/web/tests/api/views/test_snapshot.py
@@ -26,7 +26,7 @@
                       url_args={'snapshot_id': snapshot})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         expected_data = self.snapshot_get(snapshot)
         expected_data = self._enrich_snapshot(expected_data)
@@ -56,7 +56,7 @@
                           query_params={'branches_from': branches_from,
                                         'branches_count': branches_count})
             rv = self.client.get(url)
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
             expected_data = self.snapshot_get_branches(snapshot, branches_from,
                                                        branches_count)
@@ -87,7 +87,7 @@
                       url_args={'snapshot_id': snapshot})
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, whole_snapshot)
 
@@ -114,7 +114,7 @@
             snapshot, target_types=target_type)
         expected_data = self._enrich_snapshot(expected_data)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, expected_data)
 
@@ -124,12 +124,12 @@
         url = reverse('api-1-snapshot',
                       url_args={'snapshot_id': '63ce369'})
         rv = self.client.get(url)
-        self.assertEqual(rv.status_code, 400)
+        self.assertEqual(rv.status_code, 400, rv.data)
 
         url = reverse('api-1-snapshot',
                       url_args={'snapshot_id': unknown_snapshot_})
         rv = self.client.get(url)
-        self.assertEqual(rv.status_code, 404)
+        self.assertEqual(rv.status_code, 404, rv.data)
 
     def _enrich_snapshot(self, snapshot):
         def _get_branch_url(target_type, target):
diff --git a/swh/web/tests/api/views/test_stat.py b/swh/web/tests/api/views/test_stat.py
--- a/swh/web/tests/api/views/test_stat.py
+++ b/swh/web/tests/api/views/test_stat.py
@@ -22,7 +22,7 @@
         url = reverse('api-1-stat-counters')
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 400)
+        self.assertEqual(rv.status_code, 400, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'ValueError',
@@ -37,7 +37,7 @@
         url = reverse('api-1-stat-counters')
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 503)
+        self.assertEqual(rv.status_code, 503, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'StorageDBError',
@@ -55,7 +55,7 @@
         url = reverse('api-1-stat-counters')
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 503)
+        self.assertEqual(rv.status_code, 503, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, {
             'exception': 'StorageAPIError',
@@ -70,6 +70,6 @@
 
         rv = self.client.get(url)
 
-        self.assertEqual(rv.status_code, 200)
+        self.assertEqual(rv.status_code, 200, rv.data)
         self.assertEqual(rv['Content-Type'], 'application/json')
         self.assertEqual(rv.data, self.storage.stat_counters())
diff --git a/swh/web/tests/api/views/test_vault.py b/swh/web/tests/api/views/test_vault.py
--- a/swh/web/tests/api/views/test_vault.py
+++ b/swh/web/tests/api/views/test_vault.py
@@ -39,7 +39,7 @@
                 url += '{}/'.format(obj_type_format)
             rv = self.client.post(url, {'email': 'test@test.mail'})
 
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
 
             self.assertEqual(rv.data, stub_cook)
@@ -78,7 +78,7 @@
                 url += '{}/'.format(obj_type_format)
             rv = self.client.post(url, {'email': 'test@test.mail'})
 
-            self.assertEqual(rv.status_code, 200)
+            self.assertEqual(rv.status_code, 200, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
 
             self.assertEqual(rv.data, stub_cook)
@@ -106,7 +106,7 @@
                 url += '{}/'.format(obj_type_format)
             rv = self.client.post(url)
 
-            self.assertEqual(rv.status_code, 404)
+            self.assertEqual(rv.status_code, 404, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
 
             self.assertEqual(rv.data['exception'], 'NotFoundExc')
@@ -115,7 +115,7 @@
 
             rv = self.client.get(url + 'raw/')
 
-            self.assertEqual(rv.status_code, 404)
+            self.assertEqual(rv.status_code, 404, rv.data)
             self.assertEqual(rv['Content-Type'], 'application/json')
             self.assertEqual(rv.data['exception'], 'NotFoundExc')
             mock_service.vault_fetch.assert_called_with(