Files
deepseek-harness/packages/support/subagent-mock/tests/subagent-mock.spec.ts
Tianyi Cui dafb81be7b subagent: implement structured output for in-process backends
The seam vocabulary (SubagentStartRequest.outputSchema, SubagentResult
.structured) existed but no in-process backend honored it — spawn/fork
advertised outputSchema: false. This lands the missing half:

- dsh-tools gains a structured-output JSON Schema subset (json-schema.ts):
  StructuredOutputSchema, assertSupportedOutputSchema (rejects loud outside
  the enforced subset, every violation listed), validateStructuredValue
  (path-qualified issues, total). outputSchema's seam type becomes this raw
  JSON-Schema subset instead of the author-facing SchemaSpec DSL — the schema
  travels verbatim to the model as a forced tool's parameters.
- dsh-subagent-inprocess gains the shared structured runtime: one global
  structured_output capture tool (placeholder parameters) + a prepend:true
  agent/request listener doing FINAL-REQUEST enforcement (strip for plain
  agents, per-run schema for structured children — survives downstream
  request-replacing listeners) + an agent/turn-continuation veto that stops
  a child's turn once captured (no wasted extra model step). Lifetime is
  refcounted by backends (plugin lifetime) AND live runs (start→settle).
- startInProcessRun drives the capture: subset asserted before the child
  exists, instruction appended to the child's system prompt, clean-finish
  nudge loop (structuredNudgeRetries, backend Config, default 1), captured
  value on result.structured; a clean finish without a capture settles
  'error' (never a silent success with a missing field).
- spawn + fork flip outputSchema: true and inject 'tools'.
2026-07-05 11:35:39 +08:00

102 lines
4.5 KiB
TypeScript

import { describe, expect, it } from 'vitest'
import { Context } from 'cordis'
import Loader from '@cordisjs/plugin-loader'
import { AgentId, type Agent } from '@deepseek-ai/dsh-agent'
import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent'
import * as mock from '../src/index.ts'
/** A minimal parent — the mock provider only reads `parent.id`. */
function fakeParent(id = 'parent-1'): Agent {
return { id: AgentId(id) } as unknown as Agent
}
function baseRequest(over: Partial<SubagentStartRequest> = {}): SubagentStartRequest {
return { prompt: [{ type: 'text', text: 'task' }], parent: fakeParent(), ...over }
}
async function mount(config: Partial<mock.Config> = {}): Promise<Context> {
const ctx = new Context()
await ctx.plugin(SubagentService)
await ctx.plugin(mock, { name: 'mock', ...config })
return ctx
}
describe('dsh-subagent-mock', () => {
it('registers a provider on ctx.subagents and returns the scripted reply', async () => {
const ctx = await mount({ reply: 'hello from mock' })
expect(ctx.subagents.list()).toEqual(['mock'])
const run = ctx.subagents.start('mock', baseRequest())
await expect(run.result).resolves.toEqual({
output: [{ type: 'text', text: 'hello from mock' }],
structured: undefined,
stopReason: 'completed',
})
})
it('registers under a configurable name', async () => {
const ctx = await mount({ name: 'spawn' })
expect(ctx.subagents.list()).toEqual(['spawn'])
})
it('surfaces a structured result when the request carries an outputSchema', async () => {
const ctx = await mount({ reply: 'r', structured: { answer: 42 } })
const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { type: 'object', properties: { answer: { type: 'number' } } } }))
await expect(run.result).resolves.toMatchObject({ structured: { answer: 42 } })
})
it('defaults structured output to { reply } when outputSchema is requested but no structured value is configured', async () => {
const ctx = await mount({ reply: 'fallback reply' })
const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { type: 'object', properties: { answer: { type: 'number' } } } }))
await expect(run.result).resolves.toMatchObject({ structured: { reply: 'fallback reply' } })
})
it('omits structured output when outputSchema capability is off', async () => {
const ctx = await mount({ capabilities: { outputSchema: false } })
// The service rejects an outputSchema request against a no-cap provider, so
// the structured path is only reachable when the cap is on; with it off and
// no schema requested, the result has no structured field.
const run = ctx.subagents.start('mock', baseRequest())
await expect(run.result).resolves.toMatchObject({ structured: undefined })
})
it('honors a configured stop reason', async () => {
const ctx = await mount({ stopReason: 'refusal' })
const run = ctx.subagents.start('mock', baseRequest())
await expect(run.result).resolves.toMatchObject({ stopReason: 'refusal' })
})
it('flips the stop reason to aborted when cancelled before the result settles', async () => {
const ctx = await mount()
const run = ctx.subagents.start('mock', baseRequest())
run.cancel()
await expect(run.result).resolves.toMatchObject({ stopReason: 'aborted' })
})
it('unregisters the provider when the owning fiber is disposed (HMR safety)', async () => {
const ctx = new Context()
await ctx.plugin(SubagentService)
const fiber = await ctx.plugin(mock, { name: 'mock' })
expect(ctx.subagents.list()).toEqual(['mock'])
await fiber.dispose()
expect(ctx.subagents.list()).toEqual([])
})
it('has the namespace-plugin export shape (no stray default) so the Loader keeps name/inject/Config/apply', () => {
// Postmortem 0001 guard: this plugin HAS `inject = ['subagents']`, so a stray
// `export default apply` would collapse the module via `unwrapExports`
// (`exports.default ?? exports`), DROP `inject`, and crash at load with
// "cannot get property … without inject". Guard the shape directly.
expect('default' in mock).toBe(false)
expect(mock.name).toBe('subagent-mock')
expect(mock.inject).toEqual(['subagents'])
const loader = Object.create(Loader.prototype) as Loader
const unwrapped = loader.unwrapExports(mock) as Record<string, unknown>
expect(unwrapped).toBe(mock)
expect(unwrapped.name).toBe('subagent-mock')
expect(unwrapped.inject).toEqual(['subagents'])
expect(typeof unwrapped.apply).toBe('function')
})
})