describe 'Morris.Bar#colorFor', ->

defaults =
  element: 'graph'
  data: [{x: 'foo', y: 2, z: 3}, {x: 'bar', y: 4, z: 6}]
  xkey: 'x'
  ykeys: ['y', 'z']
  labels: ['Y', 'Z']

it 'should fetch colours from an array', ->
  chart = Morris.Bar $.extend {}, defaults, barColors: ['#f00', '#0f0', '#00f']
  chart.colorFor(chart.data[0], 0, 'bar').should.equal '#f00'
  chart.colorFor(chart.data[0], 0, 'hover').should.equal '#f00'
  chart.colorFor(chart.data[0], 1, 'bar').should.equal '#0f0'
  chart.colorFor(chart.data[0], 1, 'hover').should.equal '#0f0'
  chart.colorFor(chart.data[0], 2, 'bar').should.equal '#00f'
  chart.colorFor(chart.data[0], 2, 'hover').should.equal '#00f'
  chart.colorFor(chart.data[0], 3, 'bar').should.equal '#f00'
  chart.colorFor(chart.data[0], 4, 'hover').should.equal '#0f0'

it 'should defer to a callback', ->
  stub = sinon.stub().returns '#f00'
  chart = Morris.Bar $.extend {}, defaults, barColors: stub
  stub.reset()

  chart.colorFor(chart.data[0], 0, 'bar')
  stub.should.have.been.calledWith(
    {x:0, y:2, label:'foo'},
    {index:0, key:'y', label:'Y'},
    'bar')

  chart.colorFor(chart.data[0], 1, 'hover')
  stub.should.have.been.calledWith(
    {x:0, y:3, label:'foo'},
    {index:1, key:'z', label:'Z'},
    'hover')