describe('Preview UI HTML', function() {

  var InsertPreview = require('../../examples/lib/insertPreview')
  var sequencer = require('../../src/ImageSequencer')()
  var insertPreview;
  var options = { brightness: 50 }

  beforeEach(()=>{
    insertPreview = InsertPreview

    spyOn(insertPreview,'generatePreview')
    spyOn(insertPreview,'updatePreviews')

    insertPreview.generatePreview('brightness',options,'src','selector')
    insertPreview.updatePreviews('src','selector')
  })

  it('generate preview ui', function() {
    expect(insertPreview.generatePreview).toHaveBeenCalledWith('brightness',options,'src','selector')
  })

  it('update preview ui', function() {
    expect(insertPreview.updatePreviews).toHaveBeenCalledWith('src','selector')
  })

})