Billing & Subscription Test Cases
Billing errors directly impact revenue and customer trust. Thorough testing of subscription flows prevents costly mistakes and support tickets.
Subscription Lifecycle Tests
Cover the full subscription journey:
- New user can subscribe to a plan
- Subscription activates immediately after payment
- User can upgrade to higher plan
- User can downgrade to lower plan
- Prorated charges calculated correctly
- Subscription cancellation stops renewal
- Grace period allows access after expiration
Payment Processing Tests
Verify payment handling in all scenarios:
- Valid card processes successfully
- Declined card shows appropriate error
- Expired card is rejected
- Insufficient funds handled gracefully
- 3D Secure authentication flow completes
- Retry logic for temporary failures
- Refund processes and reflects in balance
Edge Cases and Compliance
Don't overlook these critical scenarios:
- Timezone handling for billing cycles
- Currency conversion for international users
- Tax calculation for different regions
- Invoice generation and PDF download
- Subscription pause and resume
- Account balance and credits applied correctly
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