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Table of Contents
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The Short Answer
Step 1: Isolate the Failing Test
Step 2: Read the Error Message Fully
Step 3: Reproduce the Failure Consistently
Step 4: Add Strategic Logging
Step 5: Check Preconditions and Test Data
Step 6: Compare with a Passing Version (Git Bisect)
Step 7: Use a Debugger (When Logs Aren’t Enough)
Step 8: Check for Asynchronous Timing Issues
Step 9: Decide – Fix the Test or Fix the Code?
Step 10: Prevent the Same Failure Next Time
What If You’re Still Stuck?
Summary: Your Debugging Checklist
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