gomock

gomock is a mocking framework for Go that generates mock implementations of Go interfaces. The mockgen tool takes a Go source file, a package archive or a package and writes the mock code, and the framework integrates with Go’s built-in testing package. The project began as Google’s golang/mock repository, which Google no longer maintains; Uber forked it and maintains the fork under the go.uber.org/mock module path.

Worth knowing

The README says the module supports the Go versions that the official Go Release Policy supports, which is the two most recent releases.