@Test
public void testFind_NoChoice() throws Exception {

    IAtomContainer dummy = mock(IAtomContainer.class);
    int[][] g = new int[][]{{1, 2, 3}, {0, 4, 9}, {0, 5, 6}, {0, 7, 8}, {1}, {2}, {2}, {3}, {3}, {1}};
    // this mock the invariants
    long[] values = new long[]{1, 2, 2, 2, 3, 3, 3, 3, 3, 3};
    EquivalentSetFinder finder = new MinimumEquivalentCyclicSet();
    Set<Integer> set = finder.find(values, dummy, g);
    assertThat(set.size(), is(0));
}