application_spec.coffee

describe "MC", ->
  describe "#update_overage_total", ->
    beforeEach ->
      $('#bill_total').remove()
      $('#voucher_value').remove()
      $('#overage_value').remove()
      $('body').append "<div id='overage_value'></div>"

    it "calculates positive overage value", ->
      $('body').append "<input id='bill_total' type='text' value=100 />"
      $('body').append "<div id='voucher_value'>50</div>"
      MC.update_overage_total()
      expect($('#overage_value').html()).toEqual("50.00")

    it "calculates negative overage value", ->
      $('body').append "<input id='bill_total' type='text' value=100 />"
      $('body').append "<div id='voucher_value'>150</div>"
      MC.update_overage_total()
      expect($('#overage_value').html()).toEqual("0.00")

  describe "#validate_bill_total", ->
    beforeEach ->
      $('#bill_total').remove()
      $('#bill_total_block').remove()
      $('body').append sandbox {
        id: 'bill_total_block'
      }

    describe "bill total value is not a number", -> 
      beforeEach ->
        $('body').append "<input id='bill_total' type='text' value='foo' />"
        $('#bill_total_block').append("<div class='validation' style='display: none'></div>")

      it "displays an error if bill total is not a number", ->
        MC.validate_bill_total()
        expect($('#bill_total_block')).toHaveClass('error')

      it "shows the validation error", ->
        MC.validate_bill_total()
        expect($('#bill_total_block .validation')).toBeVisible()

    describe "bill total is a valid number", ->
      beforeEach ->
        $('#bill_total_block').addClass('error')
        $('#bill_total_block').append("<div class='validation'></div>")

      it "removes the error class", ->
        MC.validate_bill_total()
        expect($('#bill_total_block')).not.toHaveClass('error')

      it "hides validation error", ->
        MC.validate_bill_total()
        expect($('#bill_total_block .validation')).not.toBeVisible()