Files
deepseek-harness/packages/plan/plan-mode/tests/invariant.spec.ts
T

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TypeScript

import { describe, expect, it } from 'vitest'
import { Context } from 'cordis'
import SessionStore, { type Session, type SessionEvent } from '@deepseek-ai/dsh-session'
import * as PlanModeInvariant from '@deepseek-ai/dsh-plan-mode/invariant'
import InvariantService from '@deepseek-ai/dsh-invariants'
async function setup(): Promise<Context> {
const ctx = new Context()
await ctx.plugin(SessionStore)
await ctx.plugin(InvariantService, { enabled: true })
await ctx.plugin(PlanModeInvariant)
return ctx
}
function event(active: unknown): SessionEvent {
return { type: 'plan/mode', seq: 0, time: 0, data: { active } } as SessionEvent
}
describe('plan-mode stream invariants', () => {
it('accepts either boolean state', async () => {
const ctx = await setup()
expect(() => { ctx.emit('session/event', {} as Session, event(true)) }).not.toThrow()
expect(() => { ctx.emit('session/event', {} as Session, event(false)) }).not.toThrow()
})
it.each([42, 'plan', undefined])('rejects invalid durable plan state %j', async (active) => {
const ctx = await setup()
expect(() => { ctx.emit('session/event', {} as Session, event(active)) })
.toThrow(/expected a boolean/)
})
it('ignores unrelated dispatches and session events', async () => {
const ctx = await setup()
expect(() => {
ctx.emit('tools/change')
ctx.emit('session/event', {} as Session, {
type: 'turn/start', seq: 0, time: 0, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } },
})
}).not.toThrow()
})
it('rejects invalid existing state on late registration', async () => {
const ctx = new Context()
await ctx.plugin(SessionStore)
ctx.sessions.create().append('plan/mode', { active: 'plan' as unknown as boolean })
await ctx.plugin(InvariantService, { enabled: true })
await expect(ctx.plugin(PlanModeInvariant).then(() => undefined)).rejects.toThrow(/expected a boolean/)
})
})