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Payment Flow QA

Trust-level testing for payments: success, decline, cancel, idempotency, and state consistency.

5 steps15 verify checks60-90 minutesWorks with: emergent · chatgpt · claude · cursor

Start Guided Walkthrough

#payments #stripe #qa #checkout #billing

The Route

0/5 verified

Audit the money path

Trace where amounts come from and who declares success.

3 checks 02

Verify the success path

Prove a test payment grants correctly - exactly once.

3 checks 03

Verify decline and cancel paths

Failed money moments must be honest and recoverable.

3 checks 04

Attack the payment flow

Try to cheat your own checkout before someone else does.

3 checks 05

Reconcile states end to end

The final check: provider, database, and UI must tell one story.

3 checks

Every step ends at a Verify Gate. Do not continue until every check passes.

Context Pack

Paste this first. It briefs the AI on requirements, constraints, and the Definition of Done before your first build prompt.

Context Pack

PROJECT CONTEXT:
My app takes payments and I need to verify the flow is correct, honest, and safe before real money touches it.

GOAL:
Verify the full payment lifecycle: amounts, success/failure paths, server-side truth, idempotency, and UI honesty.

REQUIREMENTS:
- Amount integrity (server-defined, tamper-proof)
- Success path verified with test payments
- Decline, cancel, and abandonment paths verified
- Idempotency (no double-charges or double-grants)
- Payment state consistency between provider, database, and UI

CONSTRAINTS:
- Test in provider test mode with test cards
- The client must never be the source of payment truth

DEFINITION OF DONE:
- Test payments succeed and grant correctly exactly once
- Declines and cancels produce honest, recoverable UX
- Client-side tampering cannot alter amounts
- Provider, database, and UI agree on every payment's state

COMMON FAILURES TO AVOID:
- Success pages granting access without server verification
- Refresh on success double-granting purchases
- Client-editable amounts reaching the provider
- Declined payments leaving half-granted states

Paste this into your AI builder first. It teaches the AI what you want before you give it the build prompt.