Class: Applitools::Screenshot::Datastream

Inherits:
Applitools::Screenshot show all
Extended by:
Forwardable
Defined in:
lib/applitools/core/screenshot.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Applitools::Screenshot

from_any_image, from_datastream, from_image, from_region, #method_missing, #respond_to_missing?, #square

Constructor Details

#initialize(image) ⇒ Datastream

Returns a new instance of Datastream.



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# File 'lib/applitools/core/screenshot.rb', line 55

def initialize(image)
  Applitools::ArgumentGuard.not_nil(image, 'image')
  unless image.is_a?(String)
    Applitools::ArgumentGuard.raise_argument_error(
      "Expected image to be Datastream or String, but got #{image.class}"
    )
  end
  @datastream = ::ChunkyPNG::Datastream.from_string image
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Applitools::Screenshot

Instance Attribute Details

#datastream ⇒ Object (readonly)

Returns the value of attribute datastream.



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# File 'lib/applitools/core/screenshot.rb', line 53

def datastream
  @datastream
end

Instance Method Details

#__getobj__ ⇒ Object Also known as: image 



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# File 'lib/applitools/core/screenshot.rb', line 80

def __getobj__
  restore
end

#__setobj__(obj) ⇒ Object 



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# File 'lib/applitools/core/screenshot.rb', line 86

def __setobj__(obj)
  @datastream = obj.to_datastream
  self
end

#header ⇒ Object 



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# File 'lib/applitools/core/screenshot.rb', line 76

def header
  @datastream.header_chunk
end

#restore ⇒ Object 



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# File 'lib/applitools/core/screenshot.rb', line 91

def restore
  ::ChunkyPNG::Image.from_datastream @datastream
end

#to_blob ⇒ Object 



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# File 'lib/applitools/core/screenshot.rb', line 72

def to_blob
  @datastream.to_blob
end

#update!(image) ⇒ Object 



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# File 'lib/applitools/core/screenshot.rb', line 65

def update!(image)
  Applitools::ArgumentGuard.not_nil(image, 'image')
  Applitools::ArgumentGuard.is_a?(image, 'image', ::ChunkyPNG::Image)
  @datastream = image.to_datastream
  self
end