Adjusted tests for the new responseType parameter (part 1)

ref #132

src/tests/tracks/track_delete.spec.ts

@@ -35,7 +35,8 @@ describe('DETELE track', () => {
 		expect(res2.data).toEqual({
 			"name": "testtrack",
 			"distance": 200,
-			"minimumLapTime": null
+			"minimumLapTime": null,
+			"responseType": "TRACK"
 		});
 	});
 	it('check if track really was deleted', async () => {