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RSpec.describe Magick::Image, '#compression' do
it 'works' do
image = described_class.new(100, 100)
expect { image.compression }.not_to raise_error
expect(image.compression).to be_instance_of(Magick::CompressionType)
expect(image.compression).to eq(Magick::UndefinedCompression)
expect { image.compression = Magick::BZipCompression }.not_to raise_error
expect(image.compression).to eq(Magick::BZipCompression)
Magick::CompressionType.values do |compression|
expect { image.compression = compression }.not_to raise_error
end
expect { image.compression = 2 }.to raise_error(TypeError)
end
end
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