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test(adoption): revision guard witness for optimistic rollback (#500 AC6)

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Issue: #500
User-Visible: no
This commit is contained in:
claude[bot]
2026-09-10 11:41:16 +00:00
parent 7194fb2df0
commit a3e7ac1fc6
1 changed files with 13 additions and 0 deletions
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test/config-adoption.test.mjs
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@@ -380,6 +380,19 @@ test('AC6: a conflict reload or a newer mutation wins over a rejected candidate
assert.equal(same.config.spaces[0].title, 'Newer local edit');
});
test('AC6: an attempt from an older revision cannot roll back the same content accepted at a newer one (#442 AC2)', () => {
const adoption = adoptedWith(cfg('Server before'), 3);
const attempted = cfg('Draft');
const attempt = adoption.beginOptimistic(adoption.config, attempted);
adoption.stageLocalConfig(attempted);
// the queued write for the very same body was accepted meanwhile
adoption.acceptConfigWrite(attempted, { rev: 4 });
assert.equal(contentFingerprint(adoption.config), attempt.attemptedFingerprint, 'content is identical — only the revision differs');
assert.equal(adoption.rollbackOptimistic(attempt), false, 'the revision guard alone must refuse');
assert.equal(adoption.config, attempted);
assert.equal(adoption.configRev, 4);
});
test('AC6: newer in-place content on the attempted root also wins (#442)', () => {
const adoption = adoptedWith(cfg('Server before'), 3);
const attempted = cfg('Draft');