@Test
public void testSFBug826942() throws Exception {

    SmilesParser sp = new SmilesParser(DefaultChemObjectBuilder.getInstance());
    IAtomContainer molecule = sp.parseSmiles("C1CCC2C(C1)C4CCC3(CCCCC23)(C4)");
    IRingSet ringSet = new SSSRFinder(molecule).findSSSR();
    Assert.assertEquals(4, ringSet.getAtomContainerCount());
}