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from __future__ import annotations
import itertools
import json
from typing import Iterator, Tuple, Union
import pytest
from botocore.exceptions import ReadTimeoutError
from botocore.utils import BadIMDSRequestError
from aiobotocore import utils
from aiobotocore._helpers import asynccontextmanager
# TypeAlias (requires typing_extensions or >=3.10 to annotate)
Response = Tuple[Union[str, object], int]
# From class TestContainerMetadataFetcher
def fake_aiohttp_session(responses: list[Response] | Response):
"""
Dodgy shim class
"""
if isinstance(responses, tuple):
data: Iterator[Response] = itertools.cycle([responses])
else:
data = iter(responses)
class FakeAioHttpSession:
@asynccontextmanager
async def acquire(self):
yield self
class FakeResponse:
def __init__(self, request, *args, **kwargs):
self.request = request
self.url = request.url
self._body, self.status_code = next(data)
self.content = self._content()
self.text = self._text()
if not isinstance(self._body, str):
raise self._body
async def _content(self):
return self._body.encode('utf-8')
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc_val, exc_tb):
pass
async def _text(self):
return self._body
async def json(self):
return json.loads(self._body)
def __init__(self, *args, **kwargs):
pass
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc_val, exc_tb):
pass
async def send(self, request):
return self.FakeResponse(request)
return FakeAioHttpSession()
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_disabled():
env = {'AWS_EC2_METADATA_DISABLED': 'true'}
fetcher = utils.AioIMDSFetcher(env=env)
with pytest.raises(fetcher._RETRIES_EXCEEDED_ERROR_CLS):
await fetcher._get_request('path', None)
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_get_token_success():
session = fake_aiohttp_session(
('blah', 200),
)
fetcher = utils.AioIMDSFetcher(
num_attempts=2, session=session, user_agent='test'
)
response = await fetcher._fetch_metadata_token()
assert response == 'blah'
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_get_token_not_found():
session = fake_aiohttp_session(
('blah', 404),
)
fetcher = utils.AioIMDSFetcher(
num_attempts=2, session=session, user_agent='test'
)
response = await fetcher._fetch_metadata_token()
assert response is None
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_get_token_bad_request():
session = fake_aiohttp_session(
('blah', 400),
)
fetcher = utils.AioIMDSFetcher(
num_attempts=2, session=session, user_agent='test'
)
with pytest.raises(BadIMDSRequestError):
await fetcher._fetch_metadata_token()
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_get_token_timeout():
session = fake_aiohttp_session(
[
(ReadTimeoutError(endpoint_url='aaa'), 500),
]
)
fetcher = utils.AioIMDSFetcher(num_attempts=2, session=session)
response = await fetcher._fetch_metadata_token()
assert response is None
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_get_token_retry():
session = fake_aiohttp_session(
[
('blah', 500),
('blah', 500),
('token', 200),
]
)
fetcher = utils.AioIMDSFetcher(num_attempts=3, session=session)
response = await fetcher._fetch_metadata_token()
assert response == 'token'
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_retry():
session = fake_aiohttp_session(
[
('blah', 500),
('data', 200),
]
)
fetcher = utils.AioIMDSFetcher(
num_attempts=2, session=session, user_agent='test'
)
response = await fetcher._get_request('path', None, 'some_token')
assert await response.text == 'data'
session = fake_aiohttp_session(
[
('blah', 500),
('data', 200),
]
)
fetcher = utils.AioIMDSFetcher(num_attempts=1, session=session)
with pytest.raises(fetcher._RETRIES_EXCEEDED_ERROR_CLS):
await fetcher._get_request('path', None)
@pytest.mark.moto
@pytest.mark.asyncio
async def test_idmsfetcher_timeout():
session = fake_aiohttp_session(
[
(ReadTimeoutError(endpoint_url='url'), 500),
]
)
fetcher = utils.AioIMDSFetcher(num_attempts=1, session=session)
with pytest.raises(fetcher._RETRIES_EXCEEDED_ERROR_CLS):
await fetcher._get_request('path', None)
|
