FA-11355 / Spreadsheet calculation semantics / Member archive
Blank counting confuses absent cells with empty formula results · case 05
Empty string results disappear from blank counts or zero values are counted as blank.
Case contract
COUNTBLANK model counts None and empty string cells, including empty formula results; numeric zero, False and whitespace are not blank.
Why this case matters
This isolated spreadsheet model makes cell semantics explicit; it does not claim compatibility with every workbook engine.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| empty formula strings | 0 | 5 | Failed |
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