State management for cucumber-scala + cucumber-piococcontainer

[nizamudeeen]

Describe the bug
State management required for cucumber-Scala. like how cucumber-java+ cucumber-picocontainer handling state management

To Reproduce
This world class in the state need within scenario to record the state after each step and global background setup
class world{
var globalFlag: String = _
var scenarioFlag : String = _
var result : String = _
}

below is the stepDefinition class contains all glue code and step definition

class stepDefinition(implicit world : World) extends scalaDsl with En{
Given("do this"){
(input : String) => { world.scenarioFlag = input }
}
}
getting exception trying to inject world instance to step definition. where its works fine in cucumber-java and cucumber-piococontainer

Expected behavior
should get world instance available in the step definition class

Versions:

• Cucumber Scala: [6.9.1]
• Scala: [2.12]

[gaeljw]

To clarify what you would expect is that a unique World instance is created automatically and provided to the StepDefinition class, right?

[nizamudeeen]

To clarify what you would expect is that a unique World instance is created automatically and provided to the StepDefinition class, right?

Yes unique World instance needs pass to step definition for each scenario

[gaeljw]

Until we look at the injection mechanism (related to #4 ), would something like following be good enough for you:

trait WorldSteps {
   val world = new World()
}

class StepDefinition extends ScalaDsl with En with WorldSteps {
}

This would instantiate a World instance for each scenario.

[gaeljw]

Note that the instance wouldn't be a singleton shared with other Steps classes though. To do that, you could workaround something with an object.

Something like:

object WorldWrapper {
  var world: World = _
}

class WorldInitializer extends ScalaDsl {
  Before {
    WorldWrapper.world = new World()
  }
}

class StepDefinition extends ScalaDsl with En with WorldSteps {
 // Use the WorldWrapper.world
}

Just a thought.. I didn't actually try to see if it behaves as expected.

[eniqen]

Hey guys, are there any updates ? how to use pico container with cucumber-scala to share context between steps?

[gaeljw]

Hi @eniqen and @nizamudeeen , this should be working as expected with version 8.4.0 of Cucumber Scala (being published right now).

See documentation at https://github.com/cucumber/cucumber-jvm-scala/blob/main/docs/usage.md#using-dependency-injection

Keep us informed in case you encounter any issue.