Fixing errors in the logic of requesting measurements to the real server

[rgenius-ru]

What has been done:

• Fixed errors in the list() method of the Measurements class in _async and _sync, which caused crashes when calling the list() method without specifying date_from.
• Fixed the test case for the list() method: checking whether the list() method was called successfully without specifying date_from.

Tests:

All [hatch run test:cov] tests pass successfully.

Why this is important:

These changes allow the list() method of the Measurements class to be used without specifying date_from when querying the real server. Previously, this would result in an error: 500 Internal Server Error.

How to replicate this error:

To test and replicate this error, you can use the following code:

from openaq import OpenAQ
from pprint import pprint
import datetime

client = OpenAQ(api_key='YOUR_API_KEY')

locations = client.locations.list(coordinates=(39.904211,116.407395), radius=10_000)  # Beijin

sensor_id = locations.results[0].sensors[0].id  # id=40 - One from Beijin
sensor = client.sensors.get(sensor_id)

measurements = client.measurements.list(40, limit=100)  # ERROR: "openaq.shared.exceptions.ServerError: Internal Server Error"
pprint(measurements)

client.close()