message: Adds a regression test for a triangle-triangle intersection false positive.
  The triangle-triangle intersection tests indicates an intersection for the two
  (nearly) co-planar triangles in this test.
diff: @@ -902,6 +902,30 @@ TEST( primal_intersect, 3D_triangle_triangle_intersection )
  axom::slic::setLoggingMsgLevel( axom::slic::message::Warning);
  }
  +TEST( primal_intersect, 3D_triangle_triangle_intersection_regression )
  +{
  + axom::slic::setLoggingMsgLevel( axom::slic::message::Info);
  + SLIC_INFO("Triangle intersection regression tests for discovered problems");
  +
  + typedef primal::Triangle< double,3 > Triangle3;
  + typedef primal::Point< double,3 > Point3;
  +
  + {
  + Point3 vdata[4] = { Point3::make_point(-1.83697e-14,62.5,300),
  + Point3::make_point(16.17619,60.37037,300),
  + Point3::make_point(-5.790149e-16,11.26926,9.456031),
  + Point3::make_point(2.916699,10.88527,9.456031)};
  +
  + Triangle3 tri3d_1(vdata[0], vdata[1], vdata[2]);
  + Triangle3 tri3d_2(vdata[2], vdata[1], vdata[3]);
  +
  + EXPECT_FALSE(primal::intersect(tri3d_1, tri3d_2));
  + }
  +
  + axom::slic::setLoggingMsgLevel( axom::slic::message::Warning);
  +}
  +
  +
  TEST( primal_intersect, triangle_aabb_intersection_boundaryFace )
  {
  const int DIM = 3;
  