r is a tool that allows you to replace a single field in a struct n-levels deep with a new value.
The idea is to use r in testing scenarios where a function updates a single field, and you don't want to pollute your code with giant struct declarations; like in config tests.
r is available using the standard go get command.
Install by running:
go get github.com/brehv/r
Run tests by running:
go test github.com/brehv/r
r.R(subj, "Field.Name.Whatever", "NewValue") // Replaces "Field.Name.Whatever" with "NewValue" and returns a copy of subj
r.G(subj, "Field.Name.Whatever") // Returns "Field.Name.Whatever" of subjSee example_test.go or r_test.go to see more examples