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RSpec.describe Magick::Image, '#from_blob' do
it 'returns an image equal to the original' do
image = described_class.read(IMAGES_DIR + '/Button_0.gif').first
blob = image.to_blob
expect(blob).to be_instance_of(String)
result = described_class.from_blob(blob)
expect(result).to be_instance_of(Array)
expect(result.first).to be_instance_of(described_class)
expect(result.first).to eq image
end
it 'sync Image::Info' do
image = described_class.read(IMAGES_DIR + '/Button_0.gif').first
blob = image.to_blob
result = described_class.from_blob(blob) do |options|
options.colorspace = Magick::LabColorspace
end
expect(result.first.colorspace).to eq(Magick::LabColorspace)
end
end
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