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class RegionTest < Test::Unit::TestCase
include Helper
def setup
only_cairo_version(1, 10, 0)
end
def test_new_empty
region = Cairo::Region.new
assert_predicate(region, :empty?)
end
def test_new_rectangle
region = Cairo::Region.new([0, 0, 10, 10])
assert_not_predicate(region, :empty?)
end
def test_num_rectangles
region = Cairo::Region.new
assert_equal(0, region.num_rectangles)
end
def test_get_rectangle
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal([0, 0, 10, 10], region[0])
end
def test_each_rectangle
region = Cairo::Region.new
region.union!([0, 0, 10, 10])
region.union!([20, 20, 40, 40])
rectangles = []
region.each_rectangle do |rectangle|
rectangles << rectangle
end
assert_equal([
[0, 0, 10, 10],
[20, 20, 40, 40],
],
rectangles)
end
def test_rectangles
region = Cairo::Region.new
region.union!([0, 0, 10, 10])
region.union!([20, 20, 40, 40])
assert_equal([
[0, 0, 10, 10],
[20, 20, 40, 40],
],
region.rectangles)
end
def test_dup
region = Cairo::Region.new([0, 0, 10, 10])
region.dup.subtract!([5, 5, 5, 5])
assert_equal([0, 0, 10, 10], region.extents)
end
def test_equal
assert_equal(Cairo::Region.new([0, 0, 10, 10]),
Cairo::Region.new([0, 0, 10, 10]))
assert_not_equal(Cairo::Region.new([0, 0, 10, 10]),
Cairo::Region.new([0, 0, 100, 100]))
end
def test_extents
region = Cairo::Region.new
assert_equal([0, 0, 0, 0], region.extents)
region.union!([0, 0, 10, 10])
assert_equal([0, 0, 10, 10], region.extents)
end
def test_contains_rectangle
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal(Cairo::RegionOverlap::IN,
region.contains_rectangle([2, 2, 2, 2]))
assert_equal(Cairo::RegionOverlap::OUT,
region.contains_rectangle([10, 10, 1, 1]))
assert_equal(Cairo::RegionOverlap::PART,
region.contains_rectangle([2, 2, 10, 10]))
end
def test_contains_point
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal(true, region.contains_point?(5, 5))
assert_equal(false, region.contains_point?(10, 10))
end
def test_translate
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal(true, region.contains_point?(5, 5))
region.translate!(6, 6)
assert_equal(false, region.contains_point?(5, 5))
end
def test_subtract
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal(true, region.contains_point?(5, 5))
region.subtract!([5, 5, 2, 2])
assert_equal(false, region.contains_point?(5, 5))
end
def test_intersect
region = Cairo::Region.new([0, 0, 10, 10])
assert_equal(true, region.contains_point?(5, 5))
assert_equal(true, region.contains_point?(7, 7))
region.intersect!([5, 5, 2, 2])
assert_equal(true, region.contains_point?(5, 5))
assert_equal(false, region.contains_point?(7, 7))
end
def test_union
region = Cairo::Region.new([0, 0, 4, 4])
assert_equal(false, region.contains_point?(5, 5))
region.union!([5, 5, 5, 5])
assert_equal(true, region.contains_point?(5, 5))
end
def test_xor
region = Cairo::Region.new([0, 0, 5, 5])
assert_equal(true, region.contains_point?(4, 4))
assert_equal(false, region.contains_point?(7, 7))
region.xor!([3, 3, 5, 5])
assert_equal(false, region.contains_point?(4, 4))
assert_equal(true, region.contains_point?(7, 7))
end
end
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