@Test
public void testCID9257() {

    IChemObjectBuilder builder = DefaultChemObjectBuilder.getInstance();
    IAtomContainer mol = builder.newInstance(IAtomContainer.class);
    IAtom a1 = builder.newInstance(IAtom.class, "N");
    a1.setFormalCharge(0);
    a1.setPoint3d(new Point3d(0.5509, 0.9639, 0.0));
    mol.addAtom(a1);
    IAtom a2 = builder.newInstance(IAtom.class, "N");
    a2.setFormalCharge(0);
    a2.setPoint3d(new Point3d(1.1852, -0.2183, 1.0E-4));
    mol.addAtom(a2);
    IAtom a3 = builder.newInstance(IAtom.class, "N");
    a3.setFormalCharge(0);
    a3.setPoint3d(new Point3d(-1.087, -0.4827, 2.0E-4));
    mol.addAtom(a3);
    IAtom a4 = builder.newInstance(IAtom.class, "C");
    a4.setFormalCharge(0);
    a4.setPoint3d(new Point3d(-0.7991, 0.7981, -1.0E-4));
    mol.addAtom(a4);
    IAtom a5 = builder.newInstance(IAtom.class, "C");
    a5.setFormalCharge(0);
    a5.setPoint3d(new Point3d(0.15, -1.0609, -2.0E-4));
    mol.addAtom(a5);
    IAtom a6 = builder.newInstance(IAtom.class, "H");
    a6.setFormalCharge(0);
    a6.setPoint3d(new Point3d(1.094, 1.8191, 1.0E-4));
    mol.addAtom(a6);
    IAtom a7 = builder.newInstance(IAtom.class, "H");
    a7.setFormalCharge(0);
    a7.setPoint3d(new Point3d(-1.4981, 1.6215, -2.0E-4));
    mol.addAtom(a7);
    IAtom a8 = builder.newInstance(IAtom.class, "H");
    a8.setFormalCharge(0);
    a8.setPoint3d(new Point3d(0.3019, -2.13, -2.0E-4));
    mol.addAtom(a8);
    IBond b1 = builder.newInstance(IBond.class, a1, a2, IBond.Order.SINGLE);
    mol.addBond(b1);
    IBond b2 = builder.newInstance(IBond.class, a1, a4, IBond.Order.SINGLE);
    mol.addBond(b2);
    IBond b3 = builder.newInstance(IBond.class, a1, a6, IBond.Order.SINGLE);
    mol.addBond(b3);
    IBond b4 = builder.newInstance(IBond.class, a2, a5, IBond.Order.DOUBLE);
    mol.addBond(b4);
    IBond b5 = builder.newInstance(IBond.class, a3, a4, IBond.Order.DOUBLE);
    mol.addBond(b5);
    IBond b6 = builder.newInstance(IBond.class, a3, a5, IBond.Order.SINGLE);
    mol.addBond(b6);
    IBond b7 = builder.newInstance(IBond.class, a4, a7, IBond.Order.SINGLE);
    mol.addBond(b7);
    IBond b8 = builder.newInstance(IBond.class, a5, a8, IBond.Order.SINGLE);
    mol.addBond(b8);
    Assert.assertEquals(1, ((IntegerResult) descriptor.calculate(mol).getValue()).intValue());
}