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You have a form field that accepts a password length from 8 to 12 characters. Which test set correctly applies equivalence partitioning and fixes the error in this set: [7, 8, 10, 12, 13]?

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Testing Fundamentals - Functional Testing Techniques
You have a form field that accepts a password length from 8 to 12 characters. Which test set correctly applies equivalence partitioning and fixes the error in this set: [7, 8, 10, 12, 13]?
A[7, 8, 10, 12, 13]
B[8, 10, 12]
C[7, 8, 12, 13]
D[6, 8, 10, 12, 14]
Step-by-Step Solution
Solution:
  1. Step 1: Identify partitions and errors

    Partitions: below valid (<8), valid (8-12), above valid (>12). The original set misses some below and above values.
  2. Step 2: Fix test set to cover all partitions

    [6, 8, 10, 12, 14] adds 6 (below), 14 (above), and includes valid 8, 10, 12, covering all partitions correctly.
  3. Final Answer:

    [6, 8, 10, 12, 14] -> Option D
  4. Quick Check:

    Test covers below, valid, and above partitions [OK]
Quick Trick: Include clear below and above boundary values [OK]
Common Mistakes:
  • Missing values outside valid range
  • Not testing boundary values
  • Using only valid inputs

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