@Test
    public void shouldRemoveSpecific() {
        final IndexedTraverserSet<String, String> ts = makeTraverserSet();

        final List<Traverser.Admin<String>> testTraversers = new ArrayList<>(ts.get("test"));
        assertEquals(1, testTraversers.size());
        assertEquals(10, testTraversers.get(0).bulk());

        ts.remove(makeTraverser("test", 1));

        assertThat(ts.get("test"), nullValue());

        final List<Traverser.Admin<String>> nopeTraversers = new ArrayList<>(ts.get("nope"));
        assertEquals(1, nopeTraversers.size());
        assertEquals(1, nopeTraversers.get(0).bulk());
    }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/traverser/util/IndexedTraverserSetTest.java