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require 'cairo'
class ImageSurfaceTest < Test::Unit::TestCase
include Helper
def test_cloned_data
width = 10
height = 10
original_surface = Cairo::ImageSurface.new(:a1, width, height)
original_data = original_surface.data
cloned_data = original_data.clone
cloned_surface = Cairo::ImageSurface.new(cloned_data,
:a1, width, height,
original_surface.stride)
Cairo::Context.create(cloned_surface) do |context|
context.set_source_rgb(255, 255, 255)
context.scale(width, height)
context.move_to(0, 0)
context.line_to(1, 1)
context.stroke
end
assert_not_equal(original_data, cloned_data)
end
end
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