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RSpec.describe Magick::Image, '#deskew' do
it 'works' do
image = described_class.new(20, 20)
result = image.deskew
expect(result).to be_instance_of(described_class)
expect(result).not_to be(image)
expect { image.deskew(0.10) }.not_to raise_error
expect { image.deskew('95%') }.not_to raise_error
expect { image.deskew('x') }.to raise_error(ArgumentError)
expect { image.deskew(0.40, 'x') }.to raise_error(TypeError)
expect { image.deskew(0.40, 20, [1]) }.to raise_error(ArgumentError)
end
end
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