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Why might a Selenium Python test fail on one browser but pass on another, even if the test code is identical?

hard📝 Conceptual Q10 of 15
Selenium Python - Cross-Browser Testing
Why might a Selenium Python test fail on one browser but pass on another, even if the test code is identical?
ABecause the browser version does not matter
BBecause Selenium randomly fails on some browsers
CBecause browsers have different JavaScript engines and DOM implementations
DBecause the test code is not compatible with Selenium
Step-by-Step Solution
Solution:
  1. Step 1: Understand browser engine differences

    Each browser uses different JavaScript engines and DOM handling which affects test behavior.
  2. Step 2: Recognize impact on Selenium tests

    These differences can cause tests to pass on one browser and fail on another despite identical code.
  3. Final Answer:

    Because browsers have different JavaScript engines and DOM implementations -> Option C
  4. Quick Check:

    Browser engine differences cause test variation = D [OK]
Quick Trick: Browser engines affect test results differently [OK]
Common Mistakes:
  • Blaming Selenium for random failures
  • Ignoring browser version impact
  • Assuming test code is always the problem

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