@Test
public void testGenerateGeometry() throws Exception {
m_seen_things.clear();
Graph g = new Graph();
// having a start increases coverage
INode n1 = g.addNode("Start", "", "", 0, ThingNoticer::new);
INode n2 = g.addNode("", "", "", 0, ThingNoticer::new);
DirectedEdge de = g.connect(n1, n2, 0, 0, 0, ThingNoticer::new);
UnionHelper uh = new UnionHelper();
uh.generateGeometry(g);
assertEquals(3, m_seen_things.size());
assertTrue(m_seen_things.contains(n1));
assertTrue(m_seen_things.contains(n2));
assertTrue(m_seen_things.contains(de));
}
@Test
public void testUnionOne() throws Exception {
{
// if we don't call generateGeometry, a null graph is fine
UnionHelper uh = new UnionHelper();
Loop l1 = new Loop(new CircleCurve(new XY(0, 0), 10));
Loop l2 = new Loop(new CircleCurve(new XY(30, 0), 10));
Loop l3 = new Loop(new CircleCurve(new XY(60, 0), 10));
uh.addBaseLoop(l1);
uh.addBaseLoop(l2);
uh.addBaseLoop(l3);
assertEquals(3, uh.getBaseLoops().size());
assertEquals(0, uh.getMergedLoops().size());
// unionOne pumps loops one-by-one out of base-loops and into wall-loops
// (unioning them together as it goes...)
assertFalse(uh.unionOne(new Random(1)));
assertEquals(2, uh.getBaseLoops().size());
assertEquals(1, uh.getMergedLoops().size());
// unionOne pumps loops one-by-one out of base-loops and into wall-loops
// (unioning them together as it goes...)
assertFalse(uh.unionOne(new Random(1)));
assertEquals(1, uh.getBaseLoops().size());
assertEquals(2, uh.getMergedLoops().size());
// unionOne pumps loops one-by-one out of base-loops and into wall-loops
// (unioning them together as it goes...)
assertFalse(uh.unionOne(new Random(1)));
assertEquals(0, uh.getBaseLoops().size());
assertEquals(3, uh.getMergedLoops().size());
// unionOne pumps loops one-by-one out of base-loops and into wall-loops
// (unioning them together as it goes...)
assertTrue(uh.unionOne(new Random(1)));
}
{
// if we don't call generateGeometry, a null graph is fine
UnionHelper uh = new UnionHelper();
Loop l1 = new Loop(new CircleCurve(new XY(0, 0), 10));
Loop l2 = new Loop(new CircleCurve(new XY(30, 0), 10));
Loop l3 = new Loop(new CircleCurve(new XY(0, 30), 10));
Loop l4 = new Loop(new CircleCurve(new XY(30, 30), 10));
Loop l5 = new Loop(new CircleCurve(new XY(15, 15), 20));
uh.addBaseLoop(l1);
uh.addBaseLoop(l2);
uh.addBaseLoop(l3);
uh.addBaseLoop(l4);
uh.addBaseLoop(l5);
// four merges should leave us with four non-intersecting loops
assertFalse(uh.unionOne(new Random(1)));
assertFalse(uh.unionOne(new Random(1)));
assertFalse(uh.unionOne(new Random(1)));
assertFalse(uh.unionOne(new Random(1)));
assertEquals(1, uh.getBaseLoops().size());
assertEquals(4, uh.getMergedLoops().size());
// one more merge should join all those together as the 5th loop touches all the others
assertFalse(uh.unionOne(new Random(1)));
assertEquals(0, uh.getBaseLoops().size());
assertEquals(1, uh.getMergedLoops().size());
// and we should be done
assertTrue(uh.unionOne(new Random(1)));
}
{
// if we don't call generateGeometry, a null graph is fine
UnionHelper uh = new UnionHelper();
Loop l1 = new Loop(new CircleCurve(new XY(0, 0), 10));
Loop l2 = new Loop(new CircleCurve(new XY(10, 0), 5, CircleCurve.RotationDirection.Reverse));
Loop l3 = new Loop(new CircleCurve(new XY(0, 10), 5, CircleCurve.RotationDirection.Reverse));
Loop l4 = new Loop(new CircleCurve(new XY(-10, 0), 5, CircleCurve.RotationDirection.Reverse));
Loop l5 = new Loop(new CircleCurve(new XY(0, -10), 5, CircleCurve.RotationDirection.Reverse));
LoopSet ls = new LoopSet();
ls.add(l2);
ls.add(l3);
ls.add(l4);
ls.add(l5);
uh.addBaseLoop(l1);
uh.addDetailLoops(ls);
assertEquals(1, uh.getBaseLoops().size());
assertEquals(1, uh.getDetailLoopSets().size());
assertEquals(0, uh.getMergedLoops().size());
// one positive loop
assertFalse(uh.unionOne(new Random(1)));
assertEquals(0, uh.getBaseLoops().size());
assertEquals(1, uh.getDetailLoopSets().size());
assertEquals(1, uh.getMergedLoops().size());
// one more merge should merge the four negative loops
// leaving one rather crenalated positive one
assertFalse(uh.unionOne(new Random(1)));
assertEquals(0, uh.getBaseLoops().size());
assertEquals(0, uh.getDetailLoopSets().size());
assertEquals(1, uh.getMergedLoops().size());
// final loop takes 8 curves to describe
assertEquals(8, uh.getMergedLoops().stream().findFirst().get().numCurves());
// and we should be done
assertTrue(uh.unionOne(new Random(1)));
}
}