241 lines
8.7 KiB
Python
241 lines
8.7 KiB
Python
"""authentik e2e testing utilities"""
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import json
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from functools import lru_cache, wraps
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from os import environ, makedirs
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from time import sleep, time
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from typing import Any, Callable, Optional
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from django.apps import apps
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from django.contrib.staticfiles.testing import StaticLiveServerTestCase
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from django.db import connection
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from django.db.migrations.loader import MigrationLoader
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from django.db.migrations.operations.special import RunPython
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from django.test.testcases import TransactionTestCase
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from django.urls import reverse
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from docker import DockerClient, from_env
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from docker.models.containers import Container
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from selenium import webdriver
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from selenium.common.exceptions import (
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NoSuchElementException,
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TimeoutException,
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WebDriverException,
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)
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from selenium.webdriver.common.by import By
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from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
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from selenium.webdriver.common.keys import Keys
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from selenium.webdriver.remote.webdriver import WebDriver
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from selenium.webdriver.remote.webelement import WebElement
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from selenium.webdriver.support.ui import WebDriverWait
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from structlog.stdlib import get_logger
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from authentik.core.api.users import UserSerializer
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from authentik.core.models import User
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from authentik.managed.manager import ObjectManager
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# pylint: disable=invalid-name
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def USER() -> User: # noqa
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"""Cached function that always returns akadmin"""
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return User.objects.get(username="akadmin")
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class SeleniumTestCase(StaticLiveServerTestCase):
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"""StaticLiveServerTestCase which automatically creates a Webdriver instance"""
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container: Optional[Container] = None
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wait_timeout: int
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def setUp(self):
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super().setUp()
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self.wait_timeout = 60
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makedirs("selenium_screenshots/", exist_ok=True)
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self.driver = self._get_driver()
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self.driver.maximize_window()
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self.driver.implicitly_wait(30)
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self.wait = WebDriverWait(self.driver, self.wait_timeout)
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self.logger = get_logger()
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if specs := self.get_container_specs():
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self.container = self._start_container(specs)
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def _start_container(self, specs: dict[str, Any]) -> Container:
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client: DockerClient = from_env()
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client.images.pull(specs["image"])
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container = client.containers.run(**specs)
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if "healthcheck" not in specs:
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return container
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while True:
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container.reload()
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status = container.attrs.get("State", {}).get("Health", {}).get("Status")
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if status == "healthy":
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return container
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self.logger.info("Container failed healthcheck")
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sleep(1)
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def get_container_specs(self) -> Optional[dict[str, Any]]:
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"""Optionally get container specs which will launched on setup, wait for the container to
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be healthy, and deleted again on tearDown"""
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return None
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def _get_driver(self) -> WebDriver:
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return webdriver.Remote(
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command_executor="http://localhost:4444/wd/hub",
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desired_capabilities=DesiredCapabilities.CHROME,
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)
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def tearDown(self):
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if "TF_BUILD" in environ:
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screenshot_file = (
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f"selenium_screenshots/{self.__class__.__name__}_{time()}.png"
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)
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self.driver.save_screenshot(screenshot_file)
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self.logger.warning("Saved screenshot", file=screenshot_file)
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for line in self.driver.get_log("browser"):
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self.logger.warning(
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line["message"], source=line["source"], level=line["level"]
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)
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if self.container:
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self.container.kill()
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self.driver.quit()
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super().tearDown()
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def wait_for_url(self, desired_url):
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"""Wait until URL is `desired_url`."""
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self.wait.until(
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lambda driver: driver.current_url == desired_url,
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f"URL {self.driver.current_url} doesn't match expected URL {desired_url}",
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)
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def url(self, view, **kwargs) -> str:
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"""reverse `view` with `**kwargs` into full URL using live_server_url"""
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return self.live_server_url + reverse(view, kwargs=kwargs)
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def if_admin_url(self, view) -> str:
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"""same as self.url() but show URL in shell"""
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return f"{self.live_server_url}/if/admin/#{view}"
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def get_shadow_root(
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self, selector: str, container: Optional[WebElement] = None
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) -> WebElement:
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"""Get shadow root element's inner shadowRoot"""
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if not container:
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container = self.driver
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shadow_root = container.find_element(By.CSS_SELECTOR, selector)
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element = self.driver.execute_script(
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"return arguments[0].shadowRoot", shadow_root
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)
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return element
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def login(self):
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"""Do entire login flow and check user afterwards"""
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flow_executor = self.get_shadow_root("ak-flow-executor")
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identification_stage = self.get_shadow_root(
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"ak-stage-identification", flow_executor
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)
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identification_stage.find_element(
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By.CSS_SELECTOR, "input[name=uid_field]"
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).click()
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identification_stage.find_element(
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By.CSS_SELECTOR, "input[name=uid_field]"
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).send_keys(USER().username)
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identification_stage.find_element(
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By.CSS_SELECTOR, "input[name=uid_field]"
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).send_keys(Keys.ENTER)
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flow_executor = self.get_shadow_root("ak-flow-executor")
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password_stage = self.get_shadow_root("ak-stage-password", flow_executor)
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password_stage.find_element(By.CSS_SELECTOR, "input[name=password]").send_keys(
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USER().username
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)
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password_stage.find_element(By.CSS_SELECTOR, "input[name=password]").send_keys(
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Keys.ENTER
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)
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sleep(1)
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def assert_user(self, expected_user: User):
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"""Check users/me API and assert it matches expected_user"""
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self.driver.get(self.url("authentik_api:user-me") + "?format=json")
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user_json = self.driver.find_element(By.CSS_SELECTOR, "pre").text
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user = UserSerializer(data=json.loads(user_json)["user"])
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user.is_valid()
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self.assertEqual(user["username"].value, expected_user.username)
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self.assertEqual(user["name"].value, expected_user.name)
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self.assertEqual(user["email"].value, expected_user.email)
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@lru_cache
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def get_loader():
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"""Thin wrapper to lazily get a Migration Loader, only when it's needed
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and only once"""
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return MigrationLoader(connection)
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def apply_migration(app_name: str, migration_name: str):
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"""Re-apply migrations that create objects using RunPython before test cases"""
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def wrapper_outter(func: Callable):
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"""Retry test multiple times"""
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@wraps(func)
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def wrapper(self: TransactionTestCase, *args, **kwargs):
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migration = get_loader().get_migration(app_name, migration_name)
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with connection.schema_editor() as schema_editor:
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for operation in migration.operations:
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if not isinstance(operation, RunPython):
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continue
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operation.code(apps, schema_editor)
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return func(self, *args, **kwargs)
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return wrapper
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return wrapper_outter
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def object_manager(func: Callable):
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"""Run objectmanager before a test function"""
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@wraps(func)
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def wrapper(*args, **kwargs):
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"""Run objectmanager before a test function"""
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ObjectManager().run()
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return func(*args, **kwargs)
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return wrapper
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def retry(max_retires=3, exceptions=None):
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"""Retry test multiple times. Default to catching Selenium Timeout Exception"""
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if not exceptions:
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exceptions = [WebDriverException, TimeoutException, NoSuchElementException]
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logger = get_logger()
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def retry_actual(func: Callable):
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"""Retry test multiple times"""
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count = 1
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@wraps(func)
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def wrapper(self: TransactionTestCase, *args, **kwargs):
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"""Run test again if we're below max_retries, including tearDown and
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setUp. Otherwise raise the error"""
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nonlocal count
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try:
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return func(self, *args, **kwargs)
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# pylint: disable=catching-non-exception
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except tuple(exceptions) as exc:
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count += 1
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if count > max_retires:
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logger.debug("Exceeded retry count", exc=exc, test=self)
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# pylint: disable=raising-non-exception
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raise exc
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logger.debug("Retrying on error", exc=exc, test=self)
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self.tearDown()
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self._post_teardown() # noqa
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self.setUp()
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return wrapper(self, *args, **kwargs)
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return wrapper
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return retry_actual
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