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s3_fixtures.py
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s3_fixtures.py
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import os
import time
import pytest
import requests
# From: https://github.com/dask/s3fs/blob/ffe3a5293524869df56e74973af0d2c204ae9cbf/s3fs/tests/test_s3fs.py#L25-L141
s3_test_bucket_name = "test"
s3_port = 5555
s3_endpoint_uri = f"http://127.0.0.1:{s3_port}/"
S3_FAKE_ENV_VARS = {
"AWS_ACCESS_KEY_ID": "fake_access_key",
"AWS_SECRET_ACCESS_KEY": "fake_secret_key",
"AWS_SECURITY_TOKEN": "fake_secrurity_token",
"AWS_SESSION_TOKEN": "fake_session_token",
}
@pytest.fixture()
def s3_base():
# writable local S3 system
import shlex
import subprocess
# Mocked AWS Credentials for moto.
old_environ = os.environ.copy()
os.environ.update(S3_FAKE_ENV_VARS)
proc = subprocess.Popen(shlex.split(f"moto_server s3 -p {s3_port}"))
timeout = 5
while timeout > 0:
try:
r = requests.get(s3_endpoint_uri)
if r.ok:
break
except: # noqa
pass
timeout -= 0.1
time.sleep(0.1)
yield
proc.terminate()
proc.wait()
os.environ.clear()
os.environ.update(old_environ)
def get_boto3_client():
from botocore.session import Session
# NB: we use the sync botocore client for setup
session = Session()
return session.create_client("s3", endpoint_url=s3_endpoint_uri)
@pytest.fixture()
def s3(s3_base):
client = get_boto3_client()
client.create_bucket(Bucket=s3_test_bucket_name, ACL="public-read")
from s3fs.core import S3FileSystem
S3FileSystem.clear_instance_cache()
s3 = S3FileSystem(anon=False, client_kwargs={"endpoint_url": s3_endpoint_uri})
s3.invalidate_cache()
yield s3