The first 2 weeks is ended.

apps/worker/src/ai.test.ts

@@ -0,0 +1,38 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+
+const originalEnv = { ...process.env }
+
+afterEach(() => {
+  process.env = { ...originalEnv }
+  vi.unstubAllGlobals()
+})
+
+describe('worker AI providers', () => {
+  it('uses official DeepSeek JSON mode and validates the parsed response', async () => {
+    process.env.AI_PROVIDER = 'deepseek'
+    process.env.DEEPSEEK_API_KEY = 'secret'
+    process.env.DEEPSEEK_MODEL = 'deepseek-v4-flash'
+    const world = {
+      title: 'Test Reach', genre: 'Science fiction', tone: 'Tense', premise: 'A sufficiently long premise for a generated private campaign world.',
+      contentBoundaries: ['13+'],
+      startingLocation: { id: 'location', kind: 'location', name: 'Gate', summary: 'A station beyond known space.', tags: [], secrets: [] },
+      npcs: [1, 2, 3].map(index => ({ id: `npc-${index}`, kind: 'npc', name: `NPC ${index}`, summary: 'A useful person with their own agenda.', tags: [], secrets: [] })),
+      factions: [1, 2].map(index => ({ id: `faction-${index}`, kind: 'faction', name: `Faction ${index}`, summary: 'An organization pursuing a hidden objective.', tags: [], secrets: [] })),
+      hook: 'A sufficiently long hook that immediately gives the party something to investigate.',
+      hiddenThreat: 'A hidden threat waits beyond the gate.',
+      openingScene: 'The gate opens without warning, and an impossible signal calls every hero by name.',
+    }
+    const fetchMock = vi.fn(async (_url: string, init?: RequestInit) => {
+      const body = JSON.parse(String(init?.body))
+      expect(body.response_format).toEqual({ type: 'json_object' })
+      expect(body.thinking).toEqual({ type: 'disabled' })
+      expect(body.model).toBe('deepseek-v4-flash')
+      expect(body.messages[0].content).toContain('JSON Schema')
+      return new Response(JSON.stringify({ choices: [{ message: { content: JSON.stringify(world) } }] }), { status: 200 })
+    })
+    vi.stubGlobal('fetch', fetchMock)
+    const { generateWorld } = await import('./ai')
+    await expect(generateWorld([{ role: 'user', content: 'Create a science fiction frontier.' }])).resolves.toMatchObject({ title: 'Test Reach' })
+    expect(fetchMock).toHaveBeenCalledWith('https://api.deepseek.com/chat/completions', expect.any(Object))
+  }, 15_000)
+})