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Why does Cypress clear cookies, local storage, and session storage between tests by default?

hard📝 Conceptual Q10 of 15
Cypress - Authentication and Sessions
Why does Cypress clear cookies, local storage, and session storage between tests by default?
ATo ensure tests are independent and do not affect each other
BTo speed up test execution by clearing data
CBecause Cypress cannot access browser storage otherwise
DTo prevent tests from running in parallel
Step-by-Step Solution
Solution:

  1. Step 1: Understand test isolation principle

    Tests should be independent so one test's data does not affect another's results.

  2. Step 2: Cypress default behavior

    Cypress clears storage to enforce this isolation and avoid flaky tests.

  3. Final Answer:

    To ensure tests are independent and do not affect each other -> Option A

  4. Quick Check:

    Default clearing = test isolation [OK]
Quick Trick: Default clearing keeps tests independent and reliable [OK]
Common Mistakes:
  • Thinking clearing speeds up tests
  • Believing Cypress cannot access storage
  • Confusing clearing with parallel test control

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