FA-12587 / Genomic coordinate mapping / Member archive

CDS exon phase mistakes remaining bases for consumed bases · case 02

CDS exon phase mistakes remaining bases for consumed bases.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Given lengths of preceding coding segments in transcript order, report GFF-like leading completion phase (3-total modulo 3) modulo 3. This model assumes the initial segment starts on a codon boundary.

Why this case matters

An abstract offline coordinate model isolates this software mapping defect; it does not model biological interpretation.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
one carried base	`1`	`2`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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