vows-bdd

gistfile1.coffee

{Feature} = require "vows-bdd"
vows = require 'vows'
assert = require 'assert'

Feature("Share stuff between steps", module)
	.scenario("Set properties on given and when")

	.given "A is set", ->
		@A = "A"
		@callback()

	.when "I set B", ->
		@B = "B"
		@callback()

	.then "A should still be set", ->
		assert.equal @A, "A"

	.and "B should still be set", ->
		assert.equal @B, "B"

	.complete()
	.finish(module)

Check out my fork. The reason why process.nextTick wasn't working was that the vows context wasn't being applied properly. There's some magic under the vows covers; it's continuously using fn.apply to keep this pointing at the vows context properly, and calling process.nextTick @callback directly causes a problem there. You can verify the different behaviors by dropping console.log this in the then blocks

That's great - so basically "don't do that" :)

Thanks again!