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support_backend/tests/integration/ai-confidence-policy.test.ts
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import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import { buildApp } from '@/app';
import { prismaClient } from '@/infrastructure/database';
import { FastifyInstance } from 'fastify';
/** Covers specs/005-ai-support/contracts/ai-support-contract.md's confidence-policy admin
* surface (FR-005) — no LLM call involved, so this runs unconditionally against a real
* Postgres, unlike the AI-diagnosis/reasoning tests in this same directory. */
describe('AI confidence policy — admin config (FR-005)', () => {
let app: FastifyInstance;
const externalProductId = `TEST_AI_POLICY_PROD_${Date.now()}`;
beforeAll(async () => {
app = await buildApp();
await prismaClient.product.create({
data: { externalProductId, name: 'AI Policy Test Product', status: 'active' },
});
});
afterAll(async () => {
const product = await prismaClient.product.findUnique({ where: { externalProductId } });
if (product) {
await prismaClient.aIConfidencePolicy.deleteMany({ where: { productId: product.id } });
}
await prismaClient.product.deleteMany({ where: { externalProductId } });
await app.close();
});
it('rejects a highThreshold at or below lowThreshold', async () => {
const response = await app.inject({
method: 'PUT',
url: `/admin/products/${externalProductId}/ai-policy`,
payload: { highThreshold: 0.4, lowThreshold: 0.4, maxClarifyingQuestions: 2 },
});
expect(response.statusCode).toBe(400);
});
it('upserts a product-wide policy and reflects it on GET, alongside the system defaults', async () => {
const putResponse = await app.inject({
method: 'PUT',
url: `/admin/products/${externalProductId}/ai-policy`,
payload: { highThreshold: 0.8, lowThreshold: 0.3, maxClarifyingQuestions: 3 },
});
expect(putResponse.statusCode).toBe(200);
expect(putResponse.json().data.highThreshold).toBe(0.8);
const getResponse = await app.inject({
method: 'GET',
url: `/admin/products/${externalProductId}/ai-policy`,
});
expect(getResponse.statusCode).toBe(200);
const body = getResponse.json().data;
expect(body.configured).toHaveLength(1);
expect(body.configured[0].highThreshold).toBe(0.8);
expect(body.systemDefaults).toHaveProperty('highThreshold');
expect(body.systemDefaults).toHaveProperty('lowThreshold');
expect(body.systemDefaults).toHaveProperty('maxClarifyingQuestions');
});
it('a second PUT for the same product (no category) updates the existing row rather than creating a duplicate', async () => {
await app.inject({
method: 'PUT',
url: `/admin/products/${externalProductId}/ai-policy`,
payload: { highThreshold: 0.9, lowThreshold: 0.2, maxClarifyingQuestions: 1 },
});
const getResponse = await app.inject({
method: 'GET',
url: `/admin/products/${externalProductId}/ai-policy`,
});
const configured = getResponse.json().data.configured;
expect(configured).toHaveLength(1);
expect(configured[0].highThreshold).toBe(0.9);
});
it('404s for an unregistered product', async () => {
const response = await app.inject({
method: 'PUT',
url: `/admin/products/TEST_NEVER_REGISTERED_${Date.now()}/ai-policy`,
payload: { highThreshold: 0.8, lowThreshold: 0.3, maxClarifyingQuestions: 2 },
});
expect(response.statusCode).toBe(404);
});
});