void AR_Test_Clip(TSignedSeqPos clip_from, TSignedSeqPos clip_to, const TAlignRange& r,
TSignedSeqPos res_from_1, TSignedSeqPos res_from_2, TSignedSeqPos res_len)
{
typedef CRange<TSignedSeqPos> TRange;
TAlignRange r1(r);
TRange clip_1(clip_from, clip_to);
TAlignRange r2 = r1.IntersectionWith(clip_1);
r1.IntersectWith(clip_1);
TAlignRange res_1(res_from_1, res_from_2, res_len, r.IsDirect());
BOOST_CHECK_EQUAL(res_1, r1);
BOOST_CHECK_EQUAL(res_1, r2);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
background (cr);
clip_0 (cr);
clip_1 (cr);
clip_2 (cr);
clip_3 (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}