如何正确模拟导入的库？

Question

I have an import:

import {
    "github.com/aws/aws-sdk-go/service/route53"
}

Which I then use to work with host zones in AWS Route 53. I see that the code I created works properly now with the current setup.

To simplify development process, I want to create a mock of the library methods I use while developing.

I have a key in config, like this env="development" or env="production".

My plan is to add my own object that is route53 with the needed methods and import it if the env is development.

How do I do it better? Does golang support conditional importing, like this:

if (env=="development") {
    import "./route53-mock"
} else {
    "github.com/aws/aws-sdk-go/service/route53"
}

Answer 1

"Does golang support conditional importing [?]". Answer: No. Just take a look at the language spec.

"How do I do it better?" Answer: Route calls to route53 through your own package which switches between mock and real route53 depending on your environment/build -tags/cmdlineargs/whatever.