You can try to run this example like this.
go build ..
./atgen gen --templateDir=./template --outputDir=./generated
This generates ./generated/v1_main_test.go .
Run generated test code by this command.
go test ./generated
main.go- An example HTTP API Server. This is from https://www.codementor.io/codehakase/building-a-restful-api-with-golang-a6yivzqdo and I made a few changes.
template/main_test.yaml- This defines requests/responses to test.
template/template_test.go- This is a template of test code. See comments in this file how to write template code.