Consumer-Driven Contract Testing PACT
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This document discusses consumer-driven contract testing and introduces Pact, a testing framework that uses consumer-driven contracts. It poses four problems around evolving services without breaking clients. It then describes the basic flow of consumer-driven contracts where the consumer generates and shares a contract with the provider to test against. Pact enables evaluating contracts throughout a provider's development cycle to ensure fast, confident and less error-prone continuous delivery of services.
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Consumer-Driven Contract Testing With Postman
This document discusses consumer-driven contract testing for microservices. It explains that consumer-driven contracts allow each API consumer to define expectations for how an API should behave, helping providers understand how changes may affect consumers. The document outlines how Postman supports consumer-driven contracts through features like collections, documentation, and testing APIs against contracts to validate compatibility during development. It presents consumer-driven contracts as an effective way for microservices to evolve independently while maintaining compatibility.
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Wading through treacle? Escape the integration syrup with contract tests
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1) Writing tests that exercise services based on the agreed interactions or "contract" rather than testing against real external systems, which may be slow, unstable or inaccessible.
2) Using stateful "fakes" that mimic external systems behavior to allow running contract tests quickly without depending on external services.
3) Sharing contract tests between services so they can validate compatibility before releases to catch issues early.
SOA Principles : 4.service loose coupling
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Optimizing Contract Renewals with Oracle Service Contracts
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Consumer-Driven Contract Testing PACT
- 1. CONSUMER-DRIVEN Contract Testing PRAVITHA NAIR/SUNITA VENKATACHALAM TARGET, BANGALORE
- 2. PROBLEM STATEMENTS 1. How can something be added to a service without breaking the clients? 2. How can something be removed from a service without breaking the clients? 3. How can a service developer find out how clients are using their service? 4. How to enable short release cycles and continuous delivery of services?
- 3. Provider
- 4. Consumer
- 5. BasicFlowof a Consumer DrivenContract CONSUMER generates a Consumer Driven Contract PROVIDER works with CONSUMER who re- generates contract and code PROVIDER changes code that results in change in contract ; contract breaks CONSUMER shares the generated contract with the PROVIDER PROVIDER includes the Contract Verification as part of their unit test
- 6. PACT.io Pact.io is a testing framework that evaluates CONSUMER Contracts are satisfied all through development cycle of a PROVIDER
- 7. PACT- DEMO
- 8. WhyPACT? Confidence Continuously evolve your codebase knowing that Pact will guarantee Contracts are met. Faster No need to wait for integration testing in end-to-end environments. No need for manual testing. Less Error Prone Generation and verification of Contracts are automatically managed by Pact.
- 9. Questions?