Class: Compatriot::ImageDiffer

Inherits:
Object
  • Object
show all
Defined in:
lib/compatriot/image_differ/image_differ.rb

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ ImageDiffer

Returns a new instance of ImageDiffer.



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# File 'lib/compatriot/image_differ/image_differ.rb', line 6

def initialize(params = {})
  @paths    = params[:paths]
  @browsers = params[:browsers]
  @strategy = params[:strategy] || Compatriot::ColorDiffer
  @results_directory = params[:results_directory]
  @diffs    = {}

  create_diffs_path
end

Instance Method Details

#compute! ⇒ Object 



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# File 'lib/compatriot/image_differ/image_differ.rb', line 20

def compute!
  @paths.map do |path|
    images_to_diff = @browsers.map { |b| b.absolute_screenshot_for(path) }
    @diffs[path] = diff(images_to_diff)
  end
end

#diff(results) ⇒ Object 



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# File 'lib/compatriot/image_differ/image_differ.rb', line 27

def diff(results)
  @strategy.diff(results.first, results.last)
end

#diff_for(path) ⇒ Object 



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# File 'lib/compatriot/image_differ/image_differ.rb', line 16

def diff_for(path)
  @diffs[path]
end

#diffs_path ⇒ Object 



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# File 'lib/compatriot/image_differ/image_differ.rb', line 31

def diffs_path
  File.join(@results_directory, "diffs")
end