Vaaya spending refusal: controlled dispatcher test
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Executed: 2026-09-17T00:16:27.987Z
Source commit: 71dd3628af0e67554b39afb943359204bae85980

Existing unit tests execute the actual dispatcher with synthetic registry, account, database and provider fixtures. No real account, purchase or ledger is accessed.
This is test evidence, not a production HTTP response, purchase, receipt or payment.

Result: 5 selected tests passed; 0 failed; 15 other tests skipped by the selection filter.

PASS vaaya/result returns the job view with no ledger movement and no transaction row
PASS vaaya/result still answers while the job is running (balance is irrelevant to a poll)
PASS dispatchService — REST rail rejects with credits_required when balance < price (prepaid — no overdraft)
PASS dispatchService — REST rail enforces max_cost_cents ceiling before upstream call
PASS dispatchService — REST rail does not debit when upstream returns 4xx

What the selected existing tests assert:
- A synthetic account with exhausted available credit receives status 402 and error credits_required.
- The provider fetch spy is not called and the mocked ledger has no debit for that refusal.
- A quote above the supplied per-call ceiling is refused before the provider is called.
- A provider error does not debit the mocked ledger.
- Reading an existing job result has zero polling-call charge and writes no new transaction row.
- An existing running job can still be checked with an empty balance.

The separate spending-check-demo.mjs uses simpler fixtures: balance 0, active credit 0, quote 1 cent;
then the same quote with synthetic balance 1 cent. Its output is a pure decision, not an HTTP response.

Reproduce the dispatcher tests from a checkout of the source commit with dependencies installed:
Working directory: apps/web
node node_modules/vitest/vitest.mjs run lib/services/__tests__/dispatch.test.ts lib/services/__tests__/dispatch.result.test.ts -t 'rejects with credits_required|enforces max_cost_cents|does not debit when upstream|returns the job view|balance is irrelevant' --reporter=json --outputFile=dispatch-test-report.json