Files
deepseek-harness/packages/preset/persona/tests/persona.spec.ts

106 lines
4.4 KiB
TypeScript

import { Context } from '@deepseek-ai/cordis'
import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt'
import { createScope, type ScopeKey } from '@deepseek-ai/dsh-scope'
import { describe, expect, it } from 'vitest'
import * as Persona from '@deepseek-ai/dsh-persona'
import { PERSONA_SECTION } from '@deepseek-ai/dsh-persona'
async function harness(deploymentPersona: string): Promise<Context> {
const ctx = new Context()
await ctx.plugin(SystemPrompt, { persona: deploymentPersona })
return ctx
}
/** The rendered text of the persona slot as one scope sees it. */
async function personaText(ctx: Context, scope?: ScopeKey): Promise<string | undefined> {
const assembly = await ctx.systemPrompt.assemble(scope === undefined ? {} : { scope })
return assembly.sections.find(section => section.name === PERSONA_SECTION)?.text
}
describe('the persona row', () => {
it('rejects an unscoped mount, which would collide with the registry default', async () => {
const ctx = await harness('deployment identity')
await expect(ctx.plugin(Persona, { text: 'composition identity' }))
.rejects.toThrow(/"deployment:persona" is already registered/)
})
it('shadows the deployment default for one scope only', async () => {
const ctx = await harness('deployment identity')
const key: ScopeKey = { agent: 'a1' }
const scope = createScope(ctx, key)
await scope.ctx.plugin(Persona, { text: 'preset identity' })
expect(await personaText(ctx, key)).toBe('preset identity')
expect(await personaText(ctx)).toBe('deployment identity')
})
it('gives two scopes independent personas', async () => {
const ctx = await harness('')
const first: ScopeKey = { agent: 'a1' }
const second: ScopeKey = { agent: 'a2' }
await createScope(ctx, first).ctx.plugin(Persona, { text: 'first identity' })
await createScope(ctx, second).ctx.plugin(Persona, { text: 'second identity' })
expect(await personaText(ctx, first)).toBe('first identity')
expect(await personaText(ctx, second)).toBe('second identity')
})
it('shadows the deployment persona away entirely when its text is empty', async () => {
const ctx = await harness('deployment identity')
const key: ScopeKey = { agent: 'a1' }
await createScope(ctx, key).ctx.plugin(Persona, { text: '' })
// The slot is still occupied, so the deployment persona is gone for this
// agent; an empty section is dropped when the prompt renders.
expect(await personaText(ctx, key)).toBe('')
expect(await personaText(ctx)).toBe('deployment identity')
})
it('restores the shadowed default when its fiber unloads', async () => {
const ctx = await harness('deployment identity')
const key: ScopeKey = { agent: 'a1' }
const scope = createScope(ctx, key)
const fiber = await scope.ctx.plugin(Persona, { text: 'preset identity' })
expect(await personaText(ctx, key)).toBe('preset identity')
await fiber.dispose()
expect(await personaText(ctx, key)).toBe('deployment identity')
})
it('interpolates prompt variables strictly, like any other section', async () => {
const ctx = await harness('')
const key: ScopeKey = { agent: 'a1' }
ctx.systemPrompt.variable('model', () => 'deepseek-v4-pro')
await createScope(ctx, key).ctx.plugin(Persona, { text: 'You run on {{model}}.' })
// `assemble()` keeps section text uninterpolated; `renderPrompt()` is the
// stage that resolves `{{…}}` against the assembly's variables.
expect(await personaText(ctx, key)).toBe('You run on {{model}}.')
expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: key })))
.toContain('You run on deepseek-v4-pro.')
})
it('makes a complete persona the exact prompt after every other contribution', async () => {
const ctx = await harness('deployment identity')
const key: ScopeKey = { agent: 'a1' }
const scope = createScope(ctx, key)
ctx.systemPrompt.section({ name: 'global:extra', order: 100, text: 'global guidance' })
await scope.ctx.plugin(Persona, { text: 'Only this.', complete: true })
scope.ctx.on('system-prompt/assemble', async (assembly, _context, next) => {
assembly.sections.push({ name: 'late:extra', text: 'late guidance' })
return next()
}, { prepend: true })
const assembly = await ctx.systemPrompt.assemble({ scope: key })
expect(assembly.sections).toEqual([{ name: PERSONA_SECTION, text: 'Only this.' }])
expect(renderPrompt(assembly)).toBe('Only this.')
})
})