RangeExtension implements CustomTagExtension<RangeExtension.RangeTag> { public String getTagNameSpace() { return "org.finra.datagenerator"; }  Class<RangeTag> getTagActionClass(); String getTagName(); String getTagNameSpace(); List<Map<String, String>> pipelinePossibleStates(RangeTag action,
                                                            List<Map<String, String>> possibleStateList);  }
@Test public void tagNameSpaceTest() { RangeExtension rangeExtension = new RangeExtension(); Assert.assertEquals("org.finra.datagenerator", rangeExtension.getTagNameSpace()); }