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RSpec.describe Magick::Draw, '#fill_opacity' do
it 'works' do
draw = described_class.new
image = Magick::Image.new(200, 200)
draw.fill_opacity(0.5)
expect(draw.inspect).to eq('fill-opacity 0.5')
draw.circle(10, '20.5', 30, 40.5)
expect { draw.draw(image) }.not_to raise_error
draw = described_class.new
draw.fill_opacity('50%')
expect(draw.inspect).to eq('fill-opacity 50%')
draw.circle(10, '20.5', 30, 40.5)
expect { draw.draw(image) }.not_to raise_error
draw = described_class.new
draw.fill_opacity(1/4r)
expect(draw.inspect).to eq('fill-opacity 0.25')
expect { draw.draw(image) }.not_to raise_error
expect { draw.fill_opacity(0.0) }.not_to raise_error
expect { draw.fill_opacity(1.0) }.not_to raise_error
expect { draw.fill_opacity('0.0') }.not_to raise_error
expect { draw.fill_opacity('1.0') }.not_to raise_error
expect { draw.fill_opacity('20%') }.not_to raise_error
expect { draw.fill_opacity(-0.01) }.to raise_error(ArgumentError)
expect { draw.fill_opacity(1.01) }.to raise_error(ArgumentError)
expect { draw.fill_opacity('-0.01') }.to raise_error(ArgumentError)
expect { draw.fill_opacity('1.01') }.to raise_error(ArgumentError)
expect { draw.fill_opacity('xxx') }.to raise_error(ArgumentError)
expect { draw.fill_opacity('%20') }.to raise_error(ArgumentError)
end
end
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