[Python] How to mock httpx.AsyncClient() in Pytest

I need to write test case for a function which use to fetch data from API. In there i used httpx.AsyncClient() as context manager. But i don't understand how to write test case for that function.

async def make_dropbox_request(url, payload, dropbox_token):
async with httpx.AsyncClient(timeout=None, follow_redirects=True) as client:
headers = {
'Content-Type': 'application/json',
'authorization': 'Bearer '+ dropbox_token
}
# make the api call
response = await client.post(url, headers=headers, json=payload)

if response.status_code not in [200]:
print('Dropbox Status Code: ' + str(response.status_code))

if response.status_code in [200, 202, 303]:
return json.loads(response.text)

elif response.status_code == 401:
raise DropboxAuthenticationError()

elif response.status_code == 429:
sleep_time = int(response.headers['Retry-After'])
if sleep_time < 1*60:
await asyncio.sleep(sleep_time)
raise DropboxMaxRateLimitError()
raise DropboxMaxDailyRateLimitError()

raise DropboxHTTPError()


I need to write test cases without calling the API. So there for i believe in this case i need to mock client.post() but i do not understand how to do that. If anyone can help me to figure this out that would be really helpful for me.

This image also include my code block

Continue reading...