File: scale_geometry_spec.rb

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ruby-rmagick 6.0.1-3
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RSpec.describe Magick::KernelInfo, '#scale_geometry' do
  it 'works' do
    kernel = described_class.new('Octagon')

    expect(kernel.scale_geometry('-set option:convolve:scale 1.0')).to be(nil)
    expect { kernel.scale_geometry(42) }.to raise_error(TypeError)
  end
end