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In a Remix test, if you forget to start the msw server before tests, what will happen when your code fetches mocked endpoints?

medium📝 Predict Output Q5 of 15
Remix - Testing
In a Remix test, if you forget to start the msw server before tests, what will happen when your code fetches mocked endpoints?
AThe test will automatically start the server for you
BThe fetch call will hit the real network instead of mocked data
CThe fetch call will return undefined immediately
DThe test will fail with a syntax error
Step-by-Step Solution
Solution:
  1. Step 1: Understand msw server lifecycle

    msw server must be started to intercept requests; otherwise, fetch calls go to real network.
  2. Step 2: Identify consequences of not starting server

    Without starting, mocks are inactive, so real API calls happen.
  3. Final Answer:

    The fetch call will hit the real network instead of mocked data -> Option B
  4. Quick Check:

    msw server not started = real network calls [OK]
Quick Trick: Always start msw server before tests to mock requests [OK]
Common Mistakes:
MISTAKES
  • Assuming server auto-starts
  • Expecting fetch to return undefined
  • Confusing syntax errors with runtime issues

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