describe 'Morris.Bar', ->

describe 'when using vertical grid', ->
  defaults =
    element: 'graph'
    data: [{x: 'foo', y: 2, z: 3}, {x: 'bar', y: 4, z: 6}]
    xkey: 'x'
    ykeys: ['y', 'z']
    labels: ['Y', 'Z']
    barColors: [ '#0b62a4', '#7a92a3']
    gridLineColor: '#aaa'
    gridStrokeWidth: 0.5
    gridTextColor: '#888'
    gridTextSize: 12
    verticalGridCondition: (index) -> index % 2
    verticalGridColor: '#888888'
    verticalGridOpacity: '0.2'

  describe 'svg structure', ->
    it 'should contain extra rectangles for vertical grid', ->
      $('#graph').css('height', '250px').css('width', '800px')
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("rect").size().should.equal 6

  describe 'svg attributes', ->
    it 'should have to bars with verticalGrid.color', ->
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("rect[fill='#{defaults.verticalGridColor}']").size().should.equal 2
    it 'should have to bars with verticalGrid.color', ->
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("rect[fill-opacity='#{defaults.verticalGridOpacity}']").size().should.equal 2

describe 'svg structure', ->
  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 contain a rect for each bar', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("rect").size().should.equal 4

  it 'should contain 5 grid lines', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("path").size().should.equal 5

  it 'should contain 7 text elements', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("text").size().should.equal 7

describe 'svg attributes', ->
  defaults =
    element: 'graph'
    data: [{x: 'foo', y: 2, z: 3}, {x: 'bar', y: 4, z: 6}]
    xkey: 'x'
    ykeys: ['y', 'z']
    labels: ['Y', 'Z']
    barColors: [ '#0b62a4', '#7a92a3']
    gridLineColor: '#aaa'
    gridStrokeWidth: 0.5
    gridTextColor: '#888'
    gridTextSize: 12

  it 'should have a bar with the first default color', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("rect[fill='#0b62a4']").size().should.equal 2

  it 'should have a bar with no stroke', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("rect[stroke='none']").size().should.equal 4

  it 'should have text with configured fill color', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("text[fill='#888888']").size().should.equal 7

  it 'should have text with configured font size', ->
    chart = Morris.Bar $.extend {}, defaults
    $('#graph').find("text[font-size='12px']").size().should.equal 7

describe 'when setting bar radius', ->
  describe 'svg structure', ->
    defaults =
      element: 'graph'
      data: [{x: 'foo', y: 2, z: 3}, {x: 'bar', y: 4, z: 6}]
      xkey: 'x'
      ykeys: ['y', 'z']
      labels: ['Y', 'Z']
      barRadius: [5, 5, 0, 0]

    it 'should contain a path for each bar', ->
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("path").size().should.equal 9

    it 'should use rects if radius is too big', ->
      delete defaults.barStyle
      chart = Morris.Bar $.extend {}, defaults,
          barRadius: [300, 300, 0, 0]
      $('#graph').find("rect").size().should.equal 4

describe 'barSize option', ->
  describe 'svg attributes', ->
    defaults =
      element: 'graph'
      barSize: 20
      data: [
        {x: '2011 Q1', y: 3, z: 2, a: 3}
        {x: '2011 Q2', y: 2, z: null, a: 1}
        {x: '2011 Q3', y: 0, z: 2, a: 4}
        {x: '2011 Q4', y: 2, z: 4, a: 3}
      ],
      xkey: 'x'
      ykeys: ['y', 'z', 'a']
      labels: ['Y', 'Z', 'A']

    it 'should calc the width if too narrow for barSize', ->
      $('#graph').width('200px')
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("rect").filter((i) ->
        parseFloat($(@).attr('width'), 10) < 10
      ).size().should.equal 11

    it 'should set width to @options.barSize if possible', ->
      chart = Morris.Bar $.extend {}, defaults
      $('#graph').find("rect[width='#{defaults.barSize}']").size().should.equal 11