Add tests

tests/GP_Temperature/CharsXMLList.test.ts

@@ -3,10 +3,8 @@
  * @xml ./tests/resources/GP_Temperature_Complete_DCC.xml
  */
 
-import * as fc from "fast-check";
-import { indexOf, select, toTextArr, toTextContentArr } from "../util";
-import { CoreDataType, DCCDocument, DCCXMLElement } from "../../src";
-import { string_ISO639_1 } from "../Arbitraries";
+import { select } from "../util";
+import { DCCDocument } from "../../src";
 
 const base = "//dcc:quantity[@refType='test_charsXMLList']";
 const xpath = {