Question 1

How to mock HTTPS requests with aresponses?

Accepted Answer

aresponses automatically switches HTTPS requests to HTTP for mocking, so you define routes for HTTPS hosts as HTTP. This allows testing without real SSL, but note it doesn't simulate all HTTPS nuances.

Question 2

aresponses vs unittest.mock for testing aiohttp?

Accepted Answer

aresponses intercepts actual network calls for realistic integration tests, while unittest.mock patches code internally. Choose aresponses for network-aware mocks, but unittest.mock for lighter, in-memory unit tests.

Question 3

How to use aresponses with pytest-aiohttp?

Accepted Answer

You need to override fixtures; for example, reinitialize aresponses with the loop fixture or replace the aiohttp loop fixture with pytest-asyncio's event_loop, as shown in the README, to avoid conflicts.

Question 4

Can aresponses handle multiple mock responses in order?

Accepted Answer

Yes, use the repeat argument for routes and call assert_called_in_order to verify sequence. This ensures requests are mocked in the defined order, useful for testing sequential API calls.

Question 5

What are the breaking changes in aresponses 2.0?

Accepted Answer

Version 2.0 requires explicit assertions at test end, like assert_plan_strictly_followed(), whereas earlier versions implicitly failed on unmatched requests. This change promotes better test practices but requires code updates.

Question 6

How to return JSON responses with aresponses?

Accepted Answer

Pass a dict or list to the response parameter, and aresponses automatically creates a JSON response. For complex scenarios, use aresponses.Response or aiohttp.web_response.json_response objects.

Question 7

Is aresponses good for mocking network errors?

Accepted Answer

Yes, define custom handlers or use Response objects with error status codes (e.g., 500) to simulate failures. This helps test error handling and resilience in aiohttp applications.

aresponses

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