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09aec41 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | import { describe, expect, expectTypeOf, it, vi } from 'vitest'
import type { PromptContentPart as AttachmentPromptContentPart } from '@deepseek-ai/dsh-attachment/types'
import { SessionSeq, type SessionSeqCursor } from '@deepseek-ai/dsh-session/types'
import {
MutableSessionEventSource, type SessionAssistantSettlementEntry,
type SessionLiveEventEntry, type SessionTransientEventEntry,
} from '../src/client/contract/events.ts'
import { LlmAttemptId } from '@deepseek-ai/dsh-llm/brand'
import type { ISession } from '../src/client/contract/session.ts'
import type { ProjectionsBaseline } from '../src/client/sessions/projection-store.ts'
import { ProjectionValueStore } from '../src/client/sessions/projection-store.ts'
import type { PromptContentPart as SessionPromptContentPart, SessionPageRequest } from '../src/types.ts'
import { ev, plainTurn } from './event-script.client.ts'
type RenameSuccess = Extract<Awaited<ReturnType<ISession['rename']>>, { readonly ok: true }>
function entry(seq: SessionSeq): SessionLiveEventEntry {
return {
type: 'event',
event: {
type: 'turn/start',
seq,
time: seq,
data: { turn: seq },
},
}
}
function transient(attemptId: string, seq = 1.5): SessionTransientEventEntry {
return {
type: 'transient',
event: {
type: 'assistant/live-chunk',
seq,
time: 1,
data: {
attemptId: LlmAttemptId(attemptId),
turn: 1,
step: 1,
chunk: { type: 'text-delta', index: 0, text: 'live' },
},
},
}
}
function assistantSettlement(seq: SessionSeq): SessionAssistantSettlementEntry {
return {
type: 'event',
event: {
type: 'assistant/attempt',
seq,
time: seq,
data: { turn: 1, step: 1, stream: [] },
},
}
}
describe('Client Session contracts', () => {
it('requires branded Session positions at internal event fixture boundaries', () => {
expectTypeOf(entry).parameter(0).toEqualTypeOf<SessionSeq>()
expectTypeOf(ev.user).parameter(0).toEqualTypeOf<SessionSeq>()
expectTypeOf(ev.commandDone).parameter(4).toEqualTypeOf<SessionSeq | undefined>()
expectTypeOf(ev.compactSummary).parameter(2).toEqualTypeOf<SessionSeq>()
expectTypeOf(ev.compactCheckpoint).parameter(1).toEqualTypeOf<SessionSeq>()
expectTypeOf(plainTurn).parameter(0).toEqualTypeOf<SessionSeq>()
})
it('brands same-process Session event positions while keeping the API wire numeric', () => {
expectTypeOf<ISession['loadThrough']>().parameter(0).toEqualTypeOf<SessionSeq>()
expectTypeOf<RenameSuccess['value']['seq']>().toEqualTypeOf<SessionSeq>()
expectTypeOf<ProjectionValueStore['apply']>().parameter(2).toEqualTypeOf<SessionSeqCursor>()
expectTypeOf<ProjectionsBaseline['asOfSeq']>().toEqualTypeOf<SessionSeqCursor>()
expectTypeOf<SessionPageRequest['throughSeq']>().toEqualTypeOf<number>()
})
it('keeps its text and image prompt parts identical to attachment intake', () => {
expectTypeOf<Exclude<SessionPromptContentPart, { type: 'file' }>>()
.toEqualTypeOf<AttachmentPromptContentPart>()
})
it('publishes exact replace, prepend, and append event-window changes', () => {
const feed = new MutableSessionEventSource()
const listener = vi.fn()
const dispose = feed.subscribe(listener)
const first = entry(SessionSeq(1))
const older = entry(SessionSeq(0))
const live = entry(SessionSeq(2))
feed.replace([first], true)
expect(feed.getSnapshot()).toEqual({
entries: [first],
hasMore: true,
revision: 1,
change: { kind: 'replace', entries: [first] },
})
feed.prepend([older], false)
expect(feed.getSnapshot()).toEqual({
entries: [older, first],
hasMore: false,
revision: 2,
change: { kind: 'prepend', entries: [older] },
})
feed.append(live)
expect(feed.getSnapshot()).toEqual({
entries: [older, first, live],
hasMore: false,
revision: 3,
change: { kind: 'append', entries: [live] },
})
expect(listener).toHaveBeenCalledTimes(3)
dispose()
feed.append(entry(SessionSeq(3)))
expect(listener).toHaveBeenCalledTimes(3)
})
it('does not traverse the complete event window while appending', () => {
const feed = new MutableSessionEventSource()
const first = entry(SessionSeq(1))
const base = [first]
const iterate = vi.fn(Array.prototype[Symbol.iterator].bind(base))
Object.defineProperty(base, Symbol.iterator, { value: iterate })
feed.replace(base, false)
iterate.mockClear()
const before = feed.getSnapshot()
const live = entry(SessionSeq(2))
feed.append(live)
const after = feed.getSnapshot()
expect(iterate).not.toHaveBeenCalled()
expect(before.entries).toEqual([first])
expect(after.entries).toEqual([first, live])
expect(after.entries).toBe(after.entries)
expect(iterate).toHaveBeenCalledOnce()
})
it('publishes one exact Assistant settlement delta after retiring its transient rows', () => {
const feed = new MutableSessionEventSource()
const opening = entry(SessionSeq(1))
const live = transient('attempt-one')
const settlement = assistantSettlement(SessionSeq(2))
const later = entry(SessionSeq(3))
feed.replace([opening, live, later], false)
feed.settleAssistant(LlmAttemptId('attempt-one'), settlement)
expect(feed.getSnapshot()).toEqual({
entries: [opening, settlement, later],
hasMore: false,
revision: 2,
change: {
kind: 'settle-assistant',
attemptId: 'attempt-one',
entry: settlement,
},
})
feed.append(transient('attempt-two', 3.5))
feed.settleAssistant(LlmAttemptId('attempt-two'))
expect(feed.getSnapshot().entries).toEqual([opening, settlement, later])
expect(feed.getSnapshot().change).toEqual({
kind: 'settle-assistant',
attemptId: 'attempt-two',
})
})
})
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