267 / 278 · Module 18 — Interview Coding Scenarios · filtered: code← prev ⊞ all next →

18.31Scenario 30 — Async integration test

Endpoint:

POST /customers
→ 202

Then:

const response = await request.post('/customers', {
  data: customer
});

expect(response.status()).toBe(202);

const account = await pollUntil(
  () => salesforce.findAccount(customer.customerId),
  account => account !== null,
  { timeoutMs: 30_000 }
);

expect(account.Name).toBe(customer.companyName);

Explain:

“I poll the completion condition with a bounded timeout rather than use a fixed sleep.”