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"""Set up fixtures for tests"""
import io
import os
import socket
import subprocess
from contextlib import closing
import pytest
from qc_app import create_app
from quality_control.parsing import strain_names
@pytest.fixture(scope="session")
def strains():
"""Parse the strains once every test session"""
return strain_names("etc/strains.csv")
def is_port_in_use(port: int) -> bool:
"Check whether `port` is in use"
with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sckt:
return sckt.connect_ex(("localhost", port)) == 0
@pytest.fixture(scope="session")
def redis_url():
"Fixture to launch a new redis instance and return appropriate URI"
port = next(# pylint: disable=[stop-iteration-return]
port for port in range(6379,65535) if not is_port_in_use(port))
redis_path = f"{os.getenv('GUIX_ENVIRONMENT')}/bin/redis-server"
command = [redis_path, "--port", str(port)]
process = subprocess.Popen(command) # pylint: disable=[consider-using-with]
yield f"redis://localhost:{port}"
process.kill()
@pytest.fixture(scope="module")
def client(redis_url): # pylint: disable=[redefined-outer-name]
"Fixture for test client"
app = create_app(f"{os.path.abspath('.')}/tests/test_instance_dir")
app.config.update({
"REDIS_URL": redis_url
})
yield app.test_client()
def uploadable_file_object(filename):
"Return an 'object' representing the file to be uploaded."
with open(f"tests/test_data/{filename}", "br") as the_file:
return (io.BytesIO(the_file.read()), filename)
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