automatically re-run flaky tests

pyproject.toml

@@ -50,6 +50,10 @@ testpaths = [
     "src",
 ]
 
+markers = [
+    "flaky",
+]
+
 ###############################################################################
 # ruff
 ###############################################################################

requirements-dev.in

@@ -4,6 +4,7 @@ pytest>=6.0
 pytest-cov>=3.0.0
 pytest-django>=4.5.0
 pytest-selenium>=4.0.0
+pytest-rerunfailures>=13.0
 pre-commit>=2.7
 model-bakery>=1.1
 invoke>=2.0.0

requirements-dev.txt

@@ -78,6 +78,7 @@ packaging==23.2
     #   black
     #   build
     #   pytest
+    #   pytest-rerunfailures
 pathspec==0.12.1
     # via black
 pip-tools==7.3.0
@@ -102,6 +103,7 @@ pytest==7.4.4
     #   pytest-django
     #   pytest-html
     #   pytest-metadata
+    #   pytest-rerunfailures
     #   pytest-selenium
     #   pytest-variables
 pytest-base-url==2.0.0
@@ -114,6 +116,8 @@ pytest-html==4.1.1
     # via pytest-selenium
 pytest-metadata==3.0.0
     # via pytest-html
+pytest-rerunfailures==13.0
+    # via -r requirements-dev.in
 pytest-selenium==4.0.2
     # via -r requirements-dev.in
 pytest-variables==3.0.0

src/purchase/tests/test_cashier_flow.py

@@ -1,6 +1,7 @@
 import time
 
 import freezegun
+import pytest
 from django.urls import reverse
 from pytest_django.live_server_helper import LiveServer
 from selenium.webdriver import ActionChains, Keys
@@ -20,6 +21,7 @@ from purchase.tests.factories import (
 )
 
 
+@pytest.mark.flaky(reruns=5)
 @freezegun.freeze_time("2022-09-24 19:01:00+0200")
 def test_cashier_create_and_update_basket(  # noqa: PLR0915
     live_server: LiveServer,