@Test
public void ringBondDecision() throws InvalidSmilesException {

    assertThat(new Parser("").decideBond(Bond.DOUBLE, Bond.DOUBLE, -1, CharBuffer.fromString("")), is(Bond.DOUBLE));
    assertThat(new Parser("").decideBond(Bond.DOUBLE, Bond.IMPLICIT, -1, CharBuffer.fromString("")), is(Bond.DOUBLE));
    assertThat(new Parser("").decideBond(Bond.IMPLICIT, Bond.DOUBLE, -1, CharBuffer.fromString("")), is(Bond.DOUBLE));
}