File size: 5,675 Bytes
0f821de | 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 | import { describe, expect, it } from 'vitest'
import { Context } from '@deepseek-ai/cordis'
import AgentRegistry from '@deepseek-ai/dsh-agent'
import AgentLoop from '@deepseek-ai/dsh-agent-loop'
import SessionProjectionRegistry from '@deepseek-ai/dsh-session-projection'
import LlmRuntime, { createUserMessage, LlmError } from '@deepseek-ai/dsh-llm'
import type { LlmFailure, ResolvedRetryPolicy } from '@deepseek-ai/dsh-llm'
import SessionStore, { SessionId } from '@deepseek-ai/dsh-session'
import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
import ToolRuntime from '@deepseek-ai/dsh-tools'
import { MockAdapter, textResponse } from './mock-adapter.ts'
async function harness(adapter: MockAdapter): Promise<Context> {
const ctx = new Context()
await ctx.plugin(LlmRuntime)
await ctx.plugin(SessionStore)
await ctx.plugin(SessionProjectionRegistry)
await ctx.plugin(SystemPrompt)
await ctx.plugin(ToolRuntime)
await ctx.plugin(AgentRegistry)
await ctx.plugin(AgentLoop, { agents: [] })
ctx.llm.registerAdapter(['mock'], adapter)
return ctx
}
function fail(message: string, code: string): () => never {
return () => {
throw new LlmError(message, code)
}
}
describe('agent/request-error', () => {
it('does not offer middleware failures to request recovery', async () => {
const adapter = new MockAdapter([textResponse('unused')])
const ctx = await harness(adapter)
const agent = await ctx.agentLoop.create(SessionId('request-error-narrow'), { provider: 'mock', model: 'mock' })
let recoveries = 0
ctx.on('agent/request', () => {
throw new LlmError('middleware failed', 'MIDDLEWARE')
})
ctx.on('agent/request-error', async () => {
recoveries += 1
})
agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
await agent.whenIdle()
expect(recoveries).toBe(0)
expect(adapter.requests).toHaveLength(0)
})
it('lets each failed request return a retry action before its turn closes', async () => {
const adapter = new MockAdapter([
fail('busy', 'RATE_LIMIT'),
fail('unavailable', 'SERVICE_UNAVAILABLE'),
textResponse('ok'),
])
const ctx = await harness(adapter)
const agent = await ctx.agentLoop.create(SessionId('request-error-retry'), { provider: 'mock', model: 'mock' })
const seen: {
turn: number
step: number
failure: LlmFailure
retryPolicy: ResolvedRetryPolicy | undefined
}[] = []
const statuses: string[] = []
ctx.on('agent/status', ({ agent: subject, status }) => {
if (subject === agent) statuses.push(status)
})
ctx.on('agent/request-error', async ({ agent: subject, turn, step, failure, retryPolicy }) => {
expect(subject).toBe(agent)
seen.push({ turn, step, failure, retryPolicy })
return { kind: 'retry' }
})
agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
await agent.whenIdle()
expect(seen.map(item => ({
turn: item.turn,
step: item.step,
code: item.failure.code,
}))).toEqual([
{
turn: 1,
step: 1,
code: 'RATE_LIMIT',
},
{
turn: 1,
step: 1,
code: 'SERVICE_UNAVAILABLE',
},
])
expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
expect(seen.map(item => item.retryPolicy)).toEqual([
expect.objectContaining({ mode: 'normal' }),
expect.objectContaining({ mode: 'normal' }),
])
expect(statuses).toEqual(['running', 'idle'])
expect(agent.session.snapshotEvents().flatMap(event =>
event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
})
it('lets cancellation win over a retry action', async () => {
const adapter = new MockAdapter([fail('busy', 'RATE_LIMIT'), textResponse('unused')])
const ctx = await harness(adapter)
const agent = await ctx.agentLoop.create(SessionId('request-error-cancel'), { provider: 'mock', model: 'mock' })
ctx.on('agent/request-error', async ({ agent: subject }) => {
subject.cancel({ kind: 'user' })
return { kind: 'retry' }
})
agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
await agent.whenIdle()
expect(adapter.requests).toHaveLength(1)
expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
type: 'turn/end',
data: { reason: { kind: 'aborted', reason: { kind: 'user' } } },
})
})
it('does not retry when the recovery listener fails before returning its action', async () => {
const adapter = new MockAdapter([fail('busy', 'RATE_LIMIT'), textResponse('unused')])
const ctx = await harness(adapter)
const agent = await ctx.agentLoop.create(SessionId('request-error-recovery-failed'), {
provider: 'mock',
model: 'mock',
})
ctx.on('agent/request-error', async () => {
throw new Error('recovery failed')
})
agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
await agent.whenIdle()
expect(adapter.requests).toHaveLength(1)
expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
type: 'turn/end',
data: { reason: { kind: 'error' } },
})
})
})
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