Lyft
NewEvaluation

Beyond Test Cards: A Fake Payment Provider for Testing at Scale

Our short summary of Lyft’s engineering write-up. The full story, with all the detail, is on their blog.

Read the full write-up on eng.lyft.com (opens in a new tab)

Problem

Payment tests could only succeed or fail completely, making it hard to verify retry and fallback logic.

Solution

They created a fake payment provider that mimics any processor behavior, allowing realistic failure scenarios in production-like tests.

Want the architecture, code and numbers? They’re in the original post.

Read the full write-up on eng.lyft.com (opens in a new tab)

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