Changelog: the splash sign flip was an undefended mutant, not a shipped bug

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Meta Vens 2026-09-22 18:36:45 +02:00
commit d1756ddb54

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@ -57,9 +57,10 @@ mutation anchors? Tests should cover how the code behaves, not how it is
shaped."
A Stryker.NET spike over one file killed every mutant the harnesses defended
and found 67 survivors they did not, among them the sign error that put splash
damage on the wrong side of a ship, which the operator had spent hours hunting
and no test defended. Three rounds of tests and fixture fixes took it to 43, all named.
and found 67 survivors they did not, among them a flipped sign in the splash
handedness that no test defended: the same class as a wrong-side-damage bug the
operator had once spent hours hunting in legacy code, though the rewrite had not
shipped it. Three rounds of tests and fixture fixes took it to 43, all named.
- The principle of 2026-09-15 stays: every rule has a test that fails when it
breaks.