NB-076
38 lines
1.3 KiB
Markdown
38 lines
1.3 KiB
Markdown
# Date Processing
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## Test Cases
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| Test ID | Description |
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| D-N001 | YYYYMMDD basic processing (parse year/month/day) |
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| D-N002 | Leap year detection (2000=leap, 2100=no, 2024=leap, 2025=no) |
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| D-N003 | Month-end days (Jan 31, Feb 28/29) |
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| D-N004 | Date comparison (<, >, =) |
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| D-A001 | FUNCTION INTEGER-OF-DATE date arithmetic (21 day diff) |
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| D-A002 | Date arithmetic with FUNCTION DATE-OF-INTEGER |
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| D-A003 | Invalid dates (Feb 30, Apr 31) |
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| D-A004 | 2-digit year (YYMMDD) ambiguity |
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| D-W001 | Japanese era: Reiwa R010501 = 2019/05/01 |
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| D-W002 | Japanese era: Heisei H010108 = 1989/01/08 |
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| D-W003 | Reiwa 6 (R060101 = 2024/01/01) |
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| D-W004 | Showa era (S640101 = 1989/01/01) |
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| D-W005 | Format conversion YYYYMMDD to YYMMDD |
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| D-W006 | YYYYMMDD to Wareki string |
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| D-W007 | Cross-era date comparison |
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| D-F001 | FUNCTION CURRENT-DATE |
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| D-F002 | Century boundary handling |
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| D-F003 | Julian date format |
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## Features Covered
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- YYYYMMDD and YYMMDD processing
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- Leap year rules (divisible by 400 vs 100)
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- Month-end calculation
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- FUNCTION INTEGER-OF-DATE / DATE-OF-INTEGER for arithmetic
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- Date comparison operators
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- Invalid date storage
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- Japanese era (Wareki) representation: Reiwa/Heisei/Showa
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- Format conversion between date representations
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## Expected Results
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All 18 tests should display PASS.
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