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RSpec.describe Magick::Draw, '#line' do
it 'works' do
draw = described_class.new
image = Magick::Image.new(200, 200)
draw.line(10, '20.5', 30, 40.5)
expect(draw.inspect).to eq('line 10,20.5 30,40.5')
expect { draw.draw(image) }.not_to raise_error
expect { draw.line('x', '20.5', 30, 40.5) }.to raise_error(ArgumentError)
expect { draw.line(10, 'x', 30, 40.5) }.to raise_error(ArgumentError)
expect { draw.line(10, '20.5', 'x', 40.5) }.to raise_error(ArgumentError)
expect { draw.line(10, '20.5', 30, 'x') }.to raise_error(ArgumentError)
end
end
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