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You want to run Selenium tests with pytest in parallel to speed up execution. Which setup is best practice?

hard📝 Application Q8 of 15
Selenium Python - Test Framework Integration (pytest)
You want to run Selenium tests with pytest in parallel to speed up execution. Which setup is best practice?
AUse pytest-xdist plugin with fixture scope='function' to create separate browser per test
BUse a single WebDriver instance shared across all parallel tests
CRun tests sequentially to avoid conflicts
DUse global variables to share WebDriver between tests
Step-by-Step Solution
Solution:
  1. Step 1: Understand parallel test execution

    Parallel tests require isolated browser instances to avoid interference.
  2. Step 2: Choose fixture scope and plugin

    pytest-xdist allows parallel runs; fixture scope='function' ensures fresh browser per test.
  3. Final Answer:

    Use pytest-xdist plugin with fixture scope='function' to create separate browser per test -> Option A
  4. Quick Check:

    Parallel tests need isolated browsers [OK]
Quick Trick: Use pytest-xdist and function-scoped fixtures for parallel tests [OK]
Common Mistakes:
  • Sharing one driver across parallel tests
  • Running tests sequentially defeats parallelism
  • Using global variables causes conflicts

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