Add tests

tests/DCC/GP_DCC_Temperature_Simplified_variant/AdministrativeData.Statements_variant.test.ts

@@ -6,7 +6,7 @@
 import * as fc from "fast-check";
 import { select, toTextArr, toTextContentArr, indexOf } from "../../util";
 import { StatementMetaDataType, DCCDocument, DCCXMLElement } from "../../../src";
-import { string_ISO639_1 } from "../../Arbitraries";
+import { string_ISO3166_1 } from "../../Arbitraries";
 
 const base = "/dcc:digitalCalibrationCertificate/dcc:administrativeData/dcc:statements";
 const xpath = {