Godog pass arguments/state between steps

Question

To comply with the concurrency requirements, I'm wondering how to pass arguments or a state between multiple steps in Godog.

func FeatureContext(s *godog.Suite) {
    // This step is called in background
    s.Step(`^I work with "([^"]*)" entities`, iWorkWithEntities)
    // This step should know about the type of entity
    s.Step(`^I run the "([^"]*)" mutation with the arguments:$`, iRunTheMutationWithTheArguments)

The only idea which comes to my mind is to inline the called function:

state := make(map[string]string, 0)
s.Step(`^I work with "([^"]*)" entities`, func(entityName string) error {
    return iWorkWithEntities(entityName, state)
})
s.Step(`^I run the "([^"]*)" mutation with the arguments:$`, func(mutationName string, args *messages.PickleStepArgument_PickleTable) error {
    return iRunTheMutationWithTheArguments(mutationName, args, state)
})

But this feels a bit like a workaround. Is there any feature in the Godog library itself to pass those information?

Answer 1

Godog doesn't currently have a feature like this, but what I've done in the past in general (would need to be tested for concurrency) would be to create a TestContext struct to store data in and create a fresh one before each Scenario.

func FeatureContext(s *godog.Suite) {
    config := config.NewConfig()
    context := NewTestContext(config)

    t := &tester{
        TestContext: context,
    }

    s.BeforeScenario(func(interface{}) {
        // reset context between scenarios to avoid
        // cross contamination of data
        context = NewTestContext(config)
    })
}

I have a link to an old example here as well: https://github.com/jaysonesmith/godog-baseline-example