Interfaces 101 : Testing with a Mock Interface
Episode 8! - Watch and learn how to mock server responses for unit tests. -- In this video, Miki will build an API client type for a web service. The type will have a method called `Health` that:
Performs an HTTP request to a URL.
Returns an error depending on the response code received from the server.
Miki will then proceed by writing unit tests to verify if the client is working as intended. In lieu of a real server, Miki will create a new type that implements the `http.RoundTripper` interface and use it as the request’s transport during testing to manually specify the response code returned.
Things you will learn in this video
Perform an HTTP request with the Go STD library.
Mock an HTTP response for unit tests.
For the full course materials visit → https://github.com/ardanlabs/gotraini...
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Which aspects of your tests do you mock by taking advantage of Go interfaces?
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