Groovy for Domain-specific Languages - Second Edition

Chapter 11

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In the setup method, we create an account object with a BASIC plan. We set up four
different media objects, and load the reward rules. We can assert that the outcome
was as expected. For instance, in the first test we consume a Disney video and assert
that the bonus points have been added. For completeness, we then consume a non-
Disney video and see that no bonus points have been added.

def account

def up

def terminator

def halo3

def halo1

def bbPlus

def setup() {

account = new Account(plan:"BASIC", points:120, spend:0.0)

up = new Media(title:"UP", type:"VIDEO", newRelease:true,

price:3.99, points:40, daysAccess:1,

publisher:"Disney")

terminator = new Media(title:"Terminator", type:"VIDEO",

newRelease:false, price:2.99, points:30,

daysAccess:1, publisher:"Fox")

halo3 = new Media(title:"Halo III", type:"GAME",

newRelease:true, price:2.99, points:30,

daysAccess:3, publisher:"Microsoft")

halo1 = new Media(title:"Halo", type:"GAME",

newRelease:false, price:1.99, points:20,

daysAccess:3,publisher:"Microsoft")

bbPlus = new BroadbandPlus()

RewardService.loadRewardRules()

}

def "Disney Reward programme is applied"() {

expect:

bbPlus.canConsume(account, up)

account.points == 120

when:

def expected = account.points - up.points + up.points / 4

bbPlus.consume(account, up)