var planner = require('taskplanner')()
, assert = require('assert')
, expected = [{
cmd: 'get car'
}, {
cmd: 'drive'
, to: 'supermarket'
}]
, plan
plan = planner.addTask({ cmd: 'go', to: 'supermarket' }, {
preconditions: { state: 'in the car' }
, subTasks: [ { cmd: 'drive', to: 'supermarket' } ]
}).addTask({ cmd: 'go', to: 'supermarket' }, {
preconditions: { state: 'at home' }
, subTasks: [ { cmd: 'get car' }, { cmd: 'go', to: 'supermarket' } ]
}).addTask({ cmd: 'get car' }, {
preconditions: { state: 'at home' }
, effects: { state: 'in the car' }
}).addTask({ cmd: 'drive', to: 'supermarket' }, {
preconditions: { state: 'in the car' }
, effects: { state: 'in the supermarket' }
}).plan({ state: 'at home' }, { cmd: 'go', to: 'supermarket' })
assert.deepEqual(plan, expected)