func (s *S) TestOrientationWithin(c *check.C) {
for _, t := range orientationTests {
c.Check(feat.OrientationWithin(t.f, t.ref), check.Equals, t.oriWithin)
}
// Check that a nil reference, an unorientable f or an f not located on
// reference return NotOriented.
c.Check(feat.OrientationWithin(freeOri1, nil), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(pribA, nil), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(opA, chrom2), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(opA, geneB), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(geneA, chrom2), check.Equals, feat.NotOriented)
// Check we detect cycles.
var cycle ori
cycle.orient = feat.Forward
cycle.loc = &cycle
c.Check(func() { feat.OrientationWithin(cycle, chrom1) }, check.Panics, "feat: feature chain too long")
}
func (s *S) TestOrientationWithin(c *check.C) {
for _, t := range orientationTests {
c.Check(feat.OrientationWithin(t.f, t.ref), check.Equals, t.ori)
}
// Check we can find things that are all along the feature chain.
for ref := feat.Feature(pribA); ref != nil; ref = ref.Location() {
c.Check(feat.OrientationWithin(pribA, ref), check.Equals, feat.Forward)
}
// Check that unorientable features return different reference features.
c.Check(feat.OrientationWithin(pribA, nil), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(opA, chrom2), check.Equals, feat.NotOriented)
c.Check(feat.OrientationWithin(opA, geneB), check.Equals, feat.NotOriented)
// Check we detect cycles.
var cycle ori
cycle.orient = feat.Forward
cycle.loc = &cycle
c.Check(func() { feat.OrientationWithin(cycle, chrom1) }, check.Panics, "feat: feature chain too long")
}