Add tests

tests/DCC/CoreDataType.test.ts

@@ -15,20 +15,20 @@ const xpath = {
 };
 
 describe("CoreDataType", () => {
-  let dcc: DCCDocument, coreData: CoreDataType;
+  let dcc: DCCDocument, coreData: CoreDataType, dom;
 
   beforeEach(async () => {
-    ({ dcc } = await xmlEnv.recreateEnv());
+    ({ dcc, dom } = await xmlEnv.recreateEnv());
     coreData = dcc.digitalCalibrationCertificate.administrativeData.coreData;
   });
 
   test("should get correct countryCodeISO3166_1 from XML", () => {
-    expect(coreData.countryCodeISO3166_1._text).toBe(select(xpath.countryCodeISO3166_1, dcc));
+    expect(coreData.countryCodeISO3166_1._text).toBe(select(xpath.countryCodeISO3166_1, dom));
   });
 
   test("should get correct usedLangCodeISO639_1 from XML", () => {
     // get expected list from example xml
-    const expected = <Element[]>select(xpath.usedLangCodeISO639_1, dcc);
+    const expected = <Element[]>select(xpath.usedLangCodeISO639_1, dom);
     expect(toTextArr(coreData.usedLangCodeISO639_1)).toEqual(toTextContentArr(expected));
   });
 
@@ -48,7 +48,7 @@ describe("CoreDataType", () => {
   });
 
   test("should delete usedLangCodeISO639_1 correctly", () => {
-    const selection = toTextContentArr(<Element[]>select(xpath.usedLangCodeISO639_1, dcc));
+    const selection = toTextContentArr(<Element[]>select(xpath.usedLangCodeISO639_1, dom));
     fc.assert(
       fc.property(fc.constantFrom(...selection), (str) => {
         // get index and remove element from array