How API Stubs Beat Real Backends for Testing

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How API Stubs Beat Real Backends for Testing

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Lucas and Luna explore the practice of API stubbing — how developers replace real backends with lightweight mock services during testing. They break down a specific case: a fintech startup that cut its integration-test suite from 45 minutes to under 3 by stubbing payment and ledger APIs. The episode contrasts stubs with mocks and fakes, explains when stubbing hides real bugs (the 'false green' problem), and walks through a pragmatic decision tree for choosing a test-double strategy. Listeners learn why companies like Stripe and Twilio publish official stub libraries and how the practice fits into a shift-left testing philosophy. #APIStubbing #MockServices #SoftwareTesting #TestDoubles #IntegrationTesting #Stripe #Twilio #ShiftLeft #DeveloperTools #TechPodcast #FexingoBusiness #BusinessPodcast #APITesting #Fintech #Mocking #TestAutomation #BackendDevelopment #SoftwareEngineering Keep every episode free: buymeacoffee.com/fexingo

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