testing-banking-flows

End-to-end banking flow testing with mocked PSPs is orchestrated by simulating external payment service providers and validating payment sequencing through containerized service lifecycles. This reduces flaky integrations by controlling dependent services.

Verifying loan origination saga compensations requires orchestrating saga workflows and checking correct sequencing and rollback behaviors. Reactive testing utilities validate that compensating transactions execute properly when failures occur during the payment flow.

Testcontainers can be used for KYC onboarding integration tests by orchestrating containerized service lifecycles for dependent systems. This provides isolated, reproducible environments to validate customer lifecycle scenarios and onboarding processes.

End-to-end banking testing works with WireMock to mock PSP and rail adapter interfaces, ensuring compatibility checks pass. Mockable rail interfaces allow validation of payment flows without connecting to real external banking systems.

Payment flow integrations become flaky due to unpredictable external service dependencies and sequencing failures. Saga testing helps by orchestrating end-to-end validations against mocked services, verifying correct compensations and reducing integration instability.

Mockable PSP interfaces are required to run banking flow validations, as the testing relies on simulating external payment service providers. Containerized service lifecycles and mockable rails must be in place to ensure correct saga orchestration verification.