FA-3904 / Regular expressions / Member archive
Replacement counting reports matches instead of actual replacements · case 04
Replacement counting reports matches instead of actual replacements.
Case contract
Replace at most two digits with X and return [text,replacement_count].
Why this case matters
A local executable model for consumers of structured text; oracle values are authored literals, not outputs copied from the repaired implementation.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| boundary 1 | ["XXX", 3] | ["XX3", 2] | Failed |
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