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RSpec.describe Magick::Image, '#[]=' do
it 'allows assignment of arbitrary properties' do
image = described_class.new(20, 20)
image['comment'] = 'str_1'
image['label'] = 'str_2'
image['jpeg:sampling-factor'] = '2x1,1x1,1x1'
expect(image['comment']).to eq 'str_1'
expect(image['label']).to eq 'str_2'
expect(image['jpeg:sampling-factor']).to eq '2x1,1x1,1x1'
end
it 'raises an error when trying to assign properties to a frozen image' do
image = described_class.new(20, 20)
image.freeze
expect { image['comment'] = 'str_4' }.to raise_error(RuntimeError)
end
end
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