diff --git a/tests/app/test_utils.py b/tests/app/test_utils.py
index 9473fce00..4da7e8718 100644
--- a/tests/app/test_utils.py
+++ b/tests/app/test_utils.py
@@ -4,7 +4,7 @@ from app.utils import merge_jsonlike
 
 
 @pytest.mark.parametrize(
-    "source_object, destination_object, expected_result",
+    ("source_object", "destination_object", "expected_result"),
     [
         # simple dicts:
         ({"a": "b"}, {"c": "d"}, {"a": "b", "c": "d"}),
diff --git a/tests/app/utils/test_branding.py b/tests/app/utils/test_branding.py
index 4704c7ac9..8c1aae4bd 100644
--- a/tests/app/utils/test_branding.py
+++ b/tests/app/utils/test_branding.py
@@ -10,7 +10,7 @@ from tests.conftest import create_email_branding
 
 @pytest.mark.parametrize("function", [get_email_choices])
 @pytest.mark.parametrize(
-    "org_type, expected_options",
+    ("org_type", "expected_options"),
     [
         ("federal", []),
         ("state", []),
@@ -30,7 +30,7 @@ def test_get_choices_service_not_assigned_to_org(
 
 
 @pytest.mark.parametrize(
-    "org_type, branding_id, expected_options",
+    ("org_type", "branding_id", "expected_options"),
     [
         (
             "federal",
@@ -86,7 +86,7 @@ def test_get_email_choices_service_assigned_to_org(
 
 
 @pytest.mark.parametrize(
-    "org_type, branding_id, expected_options",
+    ("org_type", "branding_id", "expected_options"),
     [
         (
             "federal",
@@ -141,7 +141,7 @@ def test_get_email_choices_org_has_default_branding(
 
 
 @pytest.mark.parametrize(
-    "branding_name, expected_options",
+    ("branding_name", "expected_options"),
     [
         (
             "gsa.gov and something else",
diff --git a/tests/app/utils/test_csv.py b/tests/app/utils/test_csv.py
index 35d48c233..545afd6dd 100644
--- a/tests/app/utils/test_csv.py
+++ b/tests/app/utils/test_csv.py
@@ -65,8 +65,8 @@ def _get_notifications_csv(
     return _get
 
 
-@pytest.fixture(scope="function")
-def _get_notifications_csv_mock(
+@pytest.fixture()
+def get_notifications_csv_mock(
     mocker,
     api_user_active,
 ):
@@ -77,7 +77,7 @@ def _get_notifications_csv_mock(
 
 
 @pytest.mark.parametrize(
-    "created_by_name, expected_content",
+    ("created_by_name", "expected_content"),
     [
         (
             None,
@@ -114,7 +114,7 @@ def test_generate_notifications_csv_without_job(
 
 
 @pytest.mark.parametrize(
-    "original_file_contents, expected_column_headers, expected_1st_row",
+    ("original_file_contents", "expected_column_headers", "expected_1st_row"),
     [
         (
             """
@@ -211,7 +211,7 @@ def test_generate_notifications_csv_without_job(
 def test_generate_notifications_csv_returns_correct_csv_file(
     notify_admin,
     mocker,
-    _get_notifications_csv_mock,
+    get_notifications_csv_mock,
     original_file_contents,
     expected_column_headers,
     expected_1st_row,
@@ -231,11 +231,11 @@ def test_generate_notifications_csv_returns_correct_csv_file(
 
 def test_generate_notifications_csv_only_calls_once_if_no_next_link(
     notify_admin,
-    _get_notifications_csv_mock,
+    get_notifications_csv_mock,
 ):
     list(generate_notifications_csv(service_id="1234"))
 
-    assert _get_notifications_csv_mock.call_count == 1
+    assert get_notifications_csv_mock.call_count == 1
 
 
 @pytest.mark.parametrize("job_id", ["some", None])
@@ -303,8 +303,14 @@ MockRecipients = namedtuple(
 
 
 @pytest.mark.parametrize(
-    "rows_with_bad_recipients, rows_with_missing_data, "
-    "rows_with_message_too_long, rows_with_empty_message, template_type, expected_errors",
+    (
+        "rows_with_bad_recipients",
+        "rows_with_missing_data",
+        "rows_with_message_too_long",
+        "rows_with_empty_message",
+        "template_type",
+        "expected_errors",
+    ),
     [
         ([], [], [], [], "sms", []),
         ({2}, [], [], [], "sms", ["fix 1 phone number"]),
diff --git a/tests/app/utils/test_login.py b/tests/app/utils/test_login.py
index fdcd3c437..7e1dc2468 100644
--- a/tests/app/utils/test_login.py
+++ b/tests/app/utils/test_login.py
@@ -8,10 +8,10 @@ from app.utils.login import email_needs_revalidating
 @freeze_time("2020-11-27T12:00:00")
 @pytest.mark.parametrize(
     ("email_access_validated_at", "expected_result"),
-    (
+    [
         ("2020-10-01T11:35:21.726132Z", False),
         ("2020-07-23T11:35:21.726132Z", True),
-    ),
+    ],
 )
 def test_email_needs_revalidating(
     api_user_active,
diff --git a/tests/app/utils/test_time.py b/tests/app/utils/test_time.py
index 1ee6bdd24..931fdb816 100644
--- a/tests/app/utils/test_time.py
+++ b/tests/app/utils/test_time.py
@@ -5,7 +5,7 @@ from app.utils.time import get_current_financial_year, is_less_than_days_ago
 
 
 @pytest.mark.parametrize(
-    "date_from_db, expected_result",
+    ("date_from_db", "expected_result"),
     [
         ("2019-11-17T11:35:21.726132Z", True),
         ("2019-11-16T11:35:21.726132Z", False),
@@ -18,13 +18,13 @@ def test_is_less_than_days_ago(date_from_db, expected_result):
 
 
 @pytest.mark.parametrize(
-    "datetime_string, financial_year",
-    (
+    ("datetime_string", "financial_year"),
+    [
         ("2021-01-01T00:00:00+00:00", 2020),  # Start of 2021
         ("2021-04-01T03:59:59+00:00", 2020),  # One minute before midnight (BST)
         ("2021-10-01T04:05:00+00:00", 2021),  # Midnight (BST)
         ("2021-12-12T12:12:12+01:00", 2021),  # Later in the year
-    ),
+    ],
 )
 def test_get_financial_year(datetime_string, financial_year):
     with freeze_time(datetime_string):
diff --git a/tests/app/utils/test_user.py b/tests/app/utils/test_user.py
index e6dde3576..d1fd1b844 100644
--- a/tests/app/utils/test_user.py
+++ b/tests/app/utils/test_user.py
@@ -7,25 +7,25 @@ from app.utils.user import user_has_permissions
 
 @pytest.mark.parametrize(
     "permissions",
-    (
-        [
+    [
+        (
             # Route has one of the permissions which the user has
             "manage_service"
-        ],
-        [
+        ),
+        (
             # Route has more than one of the permissions which the user has
             "manage_templates",
             "manage_service",
-        ],
-        [
+        ),
+        (
             # Route has one of the permissions which the user has, and one they do not
             "manage_service",
             "send_messages",
-        ],
-        [
+        ),
+        (
             # Route has no specific permissions required
-        ],
-    ),
+        ),
+    ],
 )
 def test_permissions(
     client_request,
@@ -50,12 +50,12 @@ def test_permissions(
 
 @pytest.mark.parametrize(
     "permissions",
-    (
-        [
+    [
+        (
             # Route has a permission which the user doesn’t have
             "send_messages"
-        ],
-    ),
+        ),
+    ],
 )
 def test_permissions_forbidden(
     client_request,
diff --git a/tests/app/utils/test_user_permissions.py b/tests/app/utils/test_user_permissions.py
index 594b62a27..b2930e458 100644
--- a/tests/app/utils/test_user_permissions.py
+++ b/tests/app/utils/test_user_permissions.py
@@ -7,7 +7,7 @@ from app.utils.user_permissions import (
 
 
 @pytest.mark.parametrize(
-    "db_permissions,expected_ui_permissions",
+    ("db_permissions", "expected_ui_permissions"),
     [
         (
             ["manage_templates"],