@Test
    public void shouldGetBulkSize() {
        final TraverserSet<String> ts = makeStringTraversers();

        assertEquals(5, ts.bulkSize());
    }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/traverser/util/TraverserSetImplementationTest.java