@Test
public void testNewName() {

    KStreamBuilder builder = new KStreamBuilder();
    assertEquals("X-0000000000", builder.newName("X-"));
    assertEquals("Y-0000000001", builder.newName("Y-"));
    assertEquals("Z-0000000002", builder.newName("Z-"));
    builder = new KStreamBuilder();
    assertEquals("X-0000000000", builder.newName("X-"));
    assertEquals("Y-0000000001", builder.newName("Y-"));
    assertEquals("Z-0000000002", builder.newName("Z-"));
}