gomock

gomock is a mocking framework for the Go programming language. It integrates well with Go's built-in testing package, but can be used in other contexts too. Once you have installed Go, install the mockgen tool. If you have not done so already be sure to add $GOPATH/bin to your PATH. If you use mockgen in your CI pipeline, it may be more appropriate to fixate on a specific mockgen version. Source mode generates mock interfaces from a source file. It is enabled by using the -source flag. Other flags that may be useful in this mode are -imports and -aux_files. Reflect mode generates mock interfaces by building a program that uses reflection to understand interfaces. It is enabled by passing two non-flag arguments, an import path, and a comma-separated list of symbols. The mockgen command is used to generate source code for a mock class given a Go source file containing interfaces to be mocked.