metadata:
  version: "1.0.0"
  last_updated: "2026-02-01"
  source_urls: []

category: strings
subcategory: boundaries
tier: T0

bugs_caught:
  - "NullPointerException on empty input"
  - "Off-by-one in length validation"
  - "Buffer overflow on long strings"
  - "Whitespace-only treated as empty"

values:
  empty:
    value: ""
    bugs_caught:
      - "NullPointerException"
      - "Empty input not handled"
      - "Length validation off-by-one"
    safe_for_automation: true

  single_char:
    value: "a"
    bugs_caught:
      - "Minimum length validation"
      - "Single vs empty distinction"
    safe_for_automation: true

  two_chars:
    value: "ab"
    bugs_caught:
      - "Off-by-one at minimum boundary"
    safe_for_automation: true

  whitespace_only:
    value: "   "
    bugs_caught:
      - "Trim logic errors"
      - "Empty vs whitespace distinction"
    safe_for_automation: true

  single_space:
    value: " "
    bugs_caught:
      - "Space handling"
      - "Trim edge case"
    safe_for_automation: true

  tabs_and_spaces:
    value: "\t  \t"
    bugs_caught:
      - "Mixed whitespace handling"
      - "Inconsistent trim behavior"
    safe_for_automation: true

  leading_whitespace:
    value: "  hello"
    bugs_caught:
      - "Left trim failures"
      - "Whitespace preservation bugs"
    safe_for_automation: true

  trailing_whitespace:
    value: "hello  "
    bugs_caught:
      - "Right trim failures"
      - "Trailing space handling"
    safe_for_automation: true

  long_string_1000:
    value_template: "a * 1000"
    bugs_caught:
      - "Performance degradation"
      - "Memory allocation issues"
    safe_for_automation: true
    note: "Generate 1000 'a' characters"

  long_string_10000:
    value_template: "a * 10000"
    bugs_caught:
      - "Buffer limits"
      - "Truncation errors"
    safe_for_automation: true
    note: "Generate 10000 'a' characters"

  max_length_minus_1:
    value_template: "a * (MAX_LENGTH - 1)"
    bugs_caught:
      - "Off-by-one at maximum"
    safe_for_automation: true
    note: "Use system-specific MAX_LENGTH"

  max_length:
    value_template: "a * MAX_LENGTH"
    bugs_caught:
      - "Exact boundary handling"
    safe_for_automation: true
    note: "Use system-specific MAX_LENGTH"

  max_length_plus_1:
    value_template: "a * (MAX_LENGTH + 1)"
    bugs_caught:
      - "Overflow at maximum"
      - "Rejection message quality"
    safe_for_automation: true
    note: "Use system-specific MAX_LENGTH"