Testing utility for replacing dependencies with mock versions at test-time, without modifying the original source.
npm install testabilityTestability
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NodeJS testing utility for replacing dependencies at test-time with mock-dependencies for testing purposes, without modifying the original source.
Still in development. I wouldn't recommend using this right now... Unless you want to contribute!
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Working off ideas presented by @vojtajina in his blog post Testing Private State and Mocking Dependencies, and @joezimjs in his post Dependency Injection with JavaScript