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RSpec.describe Magick::Image, "#add_compose_mask" do
it "works" do
image = described_class.new(20, 20)
mask = described_class.new(20, 20)
expect { image.add_compose_mask(mask) }.not_to raise_error
expect { image.delete_compose_mask }.not_to raise_error
expect { image.add_compose_mask(mask) }.not_to raise_error
expect { image.add_compose_mask(mask) }.not_to raise_error
expect { image.delete_compose_mask }.not_to raise_error
expect { image.delete_compose_mask }.not_to raise_error
mask = described_class.new(10, 10)
expect { image.add_compose_mask(mask) }.to raise_error(ArgumentError)
end
it 'accepts an ImageList argument' do
image = described_class.new(20, 20)
mask = Magick::ImageList.new
mask.new_image(20, 20)
expect { image.add_compose_mask(mask) }.not_to raise_error
end
end
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