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fix(snapshot): align packed refresh by logical event

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This commit is contained in:
Tianyi Cui
2026-07-22 21:28:38 +08:00
parent 4529a22e85
commit 479e590029
5 changed files with 102 additions and 47 deletions
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packages/support/acp-snapshot/tests/suite.spec.ts
+43 -10
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@@ -451,6 +451,30 @@ describe('refreshFixtureReplacements', () => {
})
describe('stabilizeRefreshLog', () => {
it('preserves unpacked member times when refresh first packs a chunk run', () => {
const fresh = [
'{"type":"session","id":"same","createdAt":200}',
'{"type":"reasoning-chunks","seq0":2,"time0":200,"data":{"turn":1,"step":1,"index":0,"dt":[5,7],"texts":["new",""," split"]}}',
'{"type":"assistant/message","seq":5,"time":220,"data":{}}',
'',
].join('\n')
const existing = [
'{"type":"session","id":"same","createdAt":100}',
'{"type":"assistant/chunk","seq":2,"time":100,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"old"}}}',
'{"type":"assistant/chunk","seq":3,"time":101,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"chunk"}}}',
'{"type":"assistant/chunk","seq":4,"time":103,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"shape"}}}',
'{"type":"assistant/message","seq":5,"time":104,"data":{}}',
'',
].join('\n')
expect(stabilizeRefreshLog(fresh, existing, [])).toBe([
'{"type":"session","id":"same","createdAt":100}',
'{"type":"reasoning-chunks","seq0":2,"time0":100,"data":{"turn":1,"step":1,"index":0,"dt":[1,2],"texts":["new",""," split"]}}',
'{"type":"assistant/message","seq":5,"time":104,"data":{}}',
'',
].join('\n'))
})
it('preserves packed member times without flattening fresh chunk boundaries', () => {
const fresh = [
'{"type":"session","id":"same","createdAt":200}',
@@ -471,21 +495,30 @@ describe('stabilizeRefreshLog', () => {
})
it.each([
['fresh data is null', null, { dt: [1, 2] }],
['existing data is null', { dt: [5, 7] }, null],
['fresh gaps are not an array', { dt: 'fresh' }, { dt: [1, 2] }],
['existing gaps are not an array', { dt: [5, 7] }, { dt: 'existing' }],
['the chunk arity changed', { dt: [5, 7, 9] }, { dt: [1, 2] }],
])('keeps fresh packed gaps when %s', (_case, freshData, existingData) => {
const freshRow = { type: 'reasoning-chunks', seq0: 2, time0: 200, data: freshData }
const existingRow = { type: 'reasoning-chunks', seq0: 2, time0: 100, data: existingData }
['the old run is absent', [], 200],
['the old run is shorter', [100, 101], 100],
['a later old time is invalid', [100, 'invalid', 103], 100],
['an old gap is not exactly representable', [Number.MIN_SAFE_INTEGER, Number.MAX_SAFE_INTEGER - 1, Number.MAX_SAFE_INTEGER - 1], Number.MIN_SAFE_INTEGER],
])('keeps fresh packed gaps when %s', (_case, existingTimes, expectedTime0) => {
const freshRow = {
type: 'reasoning-chunks',
seq0: 2,
time0: 200,
data: { turn: 1, step: 1, index: 0, dt: [5, 7], texts: ['new', '', ' split'] },
}
const existingRows = existingTimes.map((time, index) => ({
type: 'assistant/chunk',
seq: index + 2,
time,
data: {},
}))
const output = stabilizeRefreshLog(
`${JSON.stringify({ type: 'session', id: 'same', createdAt: 200 })}\n${JSON.stringify(freshRow)}\n`,
`${JSON.stringify({ type: 'session', id: 'same', createdAt: 100 })}\n${JSON.stringify(existingRow)}\n`,
`${JSON.stringify({ type: 'session', id: 'same', createdAt: 100 })}\n${existingRows.map(row => JSON.stringify(row)).join('\n')}\n`,
[],
).trim().split('\n').map(line => JSON.parse(line) as Record<string, unknown>)
expect(output[1]).toStrictEqual({ ...freshRow, time0: 100 })
expect(output[1]).toStrictEqual({ ...freshRow, time0: expectedTime0 })
})
it('aligns volatile times across a newly inserted log event', () => {