@Test
public void testExplicitH() throws Exception {

    SmilesParser p = new SmilesParser(DefaultChemObjectBuilder.getInstance());
    IAtomContainer mol;
    mol = p.parseSmiles("CO[H]");
    Assert.assertEquals(3, mol.getAtomCount());
    mol = p.parseSmiles("[CH3][OH]");
    Assert.assertEquals(2, mol.getAtomCount());
    mol = p.parseSmiles("C([H])([H])([H])O([H])");
    Assert.assertEquals(6, mol.getAtomCount());
}