diff --git a/package-lock.json b/package-lock.json
index 92572b2..e2c3507 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -629,6 +629,15 @@
       "integrity": "sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==",
       "dev": true
     },
+    "cross-env": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-7.0.3.tgz",
+      "integrity": "sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==",
+      "dev": true,
+      "requires": {
+        "cross-spawn": "^7.0.1"
+      }
+    },
     "cross-spawn": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
diff --git a/package.json b/package.json
index e34514f..241e0f7 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "A lightweight library to give some additions for the [rss-parser package](https://github.com/rbren/rss-parser).",
   "main": "index.js",
   "scripts": {
-    "test": "TS_NODE_PROJECT='./tests/tsconfig.json' mocha --require ts-node/register ./tests/**/*-spec.ts",
+    "test": "cross-env TS_NODE_PROJECT='./tests/tsconfig.json' mocha --require ts-node/register ./tests/**/*-spec.ts",
     "build": "tsc -p ./src"
   },
   "repository": {
@@ -26,6 +26,7 @@
     "@types/node": "^14.14.25",
     "@typescript-eslint/eslint-plugin": "^4.14.2",
     "@typescript-eslint/parser": "^4.14.2",
+    "cross-env": "7.0.3",
     "chai": "4.3.0",
     "eslint": "^7.19.0",
     "eslint-config-airbnb-base": "^14.2.1",
diff --git a/src/Models/ListenerRSSInfos.ts b/src/Models/ListenerRSSInfos.ts
index 75dae15..c193919 100644
--- a/src/Models/ListenerRSSInfos.ts
+++ b/src/Models/ListenerRSSInfos.ts
@@ -1,44 +1,6 @@
-export class ListenerRSSInfos {
-  _name: string = ""; // name of the listener
-  _address: string = ""; // feed's address
-  _timeloop: number | undefined = 5 * 60; // update time RSS feed
-  _customfields: [string, string | [string, string]][] | undefined = undefined; // rss fields custom
-
-  constructor(
-    name: string,
-    address: string,
-    timeloop?: number,
-    customfields?: [string, string | [string, string]][]
-  ) {
-    if (name !== undefined && address !== undefined) {
-      this._name = name;
-      this._address = address;
-      this._timeloop = timeloop;
-      this._customfields = customfields;
-    } else throw new Error("Bad constructor's args");
-  }
-
-  set timeloop(value) {
-    this._timeloop = value;
-  }
-
-  set customfields(value) {
-    this._customfields = value;
-  }
-
-  get name() {
-    return this._name;
-  }
-
-  get address() {
-    return this._address;
-  }
-
-  get timeloop() {
-    return this._timeloop;
-  }
-
-  get customfields() {
-    return this._customfields;
-  }
+export interface ListenerRSSInfos {
+  name: string; // name of the listener
+  address: string; // feed's address
+  timeloop?: number; // update time RSS feed
+  customfields?: [string, string | [string, string]][]; // rss fields custom
 }
diff --git a/src/listener-rss.ts b/src/listener-rss.ts
index 36e4f4f..69a0b01 100644
--- a/src/listener-rss.ts
+++ b/src/listener-rss.ts
@@ -7,25 +7,14 @@ export class ListenerRss {
   name: string = "";
   address: string = "";
   timeloop: number = DEFAULT_TIMELOOP; // time in seconds
-  customfields: [string, string | [string, string]][] | undefined = undefined;
+  customfields?: [string, string | [string, string]][];
 
   // private fields
   parser: Parser | undefined = undefined;
   loopRunning: boolean = false;
 
-  constructor(
-    name: string | ListenerInfo,
-    address?: string,
-    timeloop?: number,
-    customfields?: [string, string | [string, string]][]
-  ) {
-    if (name instanceof ListenerInfo) {
-      // constructor with 1 arg
-      this.setData(name);
-    } else if (address !== undefined) {
-      // construct with between 2 and 4 args
-      this.setData(new ListenerInfo(name, address, timeloop, customfields));
-    } else throw new Error("the constructor must have args");
+  constructor(config: ListenerInfo) {
+    this.setData(config);
     this.setParser();
   }
 
@@ -46,12 +35,12 @@ export class ListenerRss {
 
   setData(infos: ListenerInfo) {
     // Set data
-    this.name = infos._name;
-    this.address = infos._address;
+    this.name = infos.name;
+    this.address = infos.address;
     this.timeloop =
-      infos._timeloop === undefined ? DEFAULT_TIMELOOP : infos._timeloop;
+      infos.timeloop === undefined ? DEFAULT_TIMELOOP : infos.timeloop;
     this.customfields =
-      infos._customfields === undefined ? undefined : infos._customfields;
+      infos.customfields === undefined ? undefined : infos.customfields;
   }
 
   fetchRSS(): any {
diff --git a/tests/index-spec.ts b/tests/index-spec.ts
index 2e36ef5..93c76b1 100644
--- a/tests/index-spec.ts
+++ b/tests/index-spec.ts
@@ -1,5 +1,5 @@
 // external lib
-import * as Parser from "rss-parser";
+import Parser from "rss-parser";
 
 // tested class
 import {
@@ -21,15 +21,15 @@ const expect = chai.expect;
 describe("test class RSS: jsonfile", function () {
   let myListener: Listeners | undefined = undefined;
 
-  const infosListener: ListenerRRSInfo = new ListenerRRSInfo(
-    "my-test-service",
-    "fake.rss.service",
-    15,
-    [
+  const infosListener: ListenerRRSInfo = {
+    name: "my-test-service",
+    address: "fake.rss.service",
+    timeloop: 15,
+    customfields: [
       ["description", ["media:group", "media:description"]],
       ["icon", ["media:group", "media:thumbnail"]],
-    ]
-  );
+    ],
+  };
 
   // parseURL tests
   let stubParser: sinon.StubbedInstance<Parser>;
@@ -89,6 +89,7 @@ describe("test class RSS: jsonfile", function () {
 
   afterEach(function () {
     // restore stubs
+    stubParser.parseURL.reset();
   });
 
   describe("Building Ytb listener", function () {
@@ -110,83 +111,83 @@ describe("test class RSS: jsonfile", function () {
         item: ["media:group", "media:group"],
       });*/
     });
-    it("The build without issues (raw infos : 4 params)", function () {
-      myListener = new Listeners("my-test-service", "fake.rss.service", 15, [
-        ["description", ["media:group", "media:description"]],
-        ["icon", ["media:group", "media:thumbnail"]],
-      ]);
-
-      // assertions
-      // myListener data
-      expect(myListener.timeloop).to.eql(15);
-      expect(myListener.name).to.eql("my-test-service");
-      expect(myListener.address).to.eql("fake.rss.service");
-      expect(myListener.customfields).to.eql([
-        ["description", ["media:group", "media:description"]],
-        ["icon", ["media:group", "media:thumbnail"]],
-      ]);
-      /*
-      expect(myListener.parser.options.customFields).to.eql({
-        feed: [],
-        item: ["media:group", "media:group"],
-      });*/
-    });
-    it("The build without issues (raw infos : just 2 params)", function () {
-      myListener = new Listeners("my-test-service", "fake.rss.service");
-
-      // assertions
-      // myListener data
-      expect(myListener.timeloop).to.eql(5 * 60);
-      expect(myListener.name).to.eql("my-test-service");
-      expect(myListener.address).to.eql("fake.rss.service");
-      expect(myListener.customfields).to.eql(undefined);
-      /*
-      expect(myListener.parser.options.customFields).to.eql({
-        feed: [],
-        item: [],
-      });*/
-    });
-    it("The build without issues (raw infos : just 3 params (no custom fields))", function () {
-      myListener = new Listeners("my-test-service", "fake.rss.service", 15);
-
-      // assertions
-      // myListener data
-      expect(myListener.timeloop).to.eql(15);
-      expect(myListener.name).to.eql("my-test-service");
-      expect(myListener.address).to.eql("fake.rss.service");
-      expect(myListener.customfields).to.eql(undefined);
-      /*
-      expect(myListener.parser.options.customFields).to.eql({
-        feed: [],
-        item: [],
-      });*/
-    });
-    it("The build without issues (raw infos : just 3 params (no timeloop))", function () {
-      myListener = new Listeners(
-        "my-test-service",
-        "fake.rss.service",
-        undefined,
-        [
-          ["description", ["media:group", "media:description"]],
-          ["icon", ["media:group", "media:thumbnail"]],
-        ]
-      );
-
-      // assertions
-      // myListener data
-      expect(myListener.timeloop).to.eql(5 * 60);
-      expect(myListener.name).to.eql("my-test-service");
-      expect(myListener.address).to.eql("fake.rss.service");
-      expect(myListener.customfields).to.eql([
-        ["description", ["media:group", "media:description"]],
-        ["icon", ["media:group", "media:thumbnail"]],
-      ]);
-      /*
-      expect(myListener.parser.options.customFields).to.eql({
-        feed: [],
-        item: ["media:group", "media:group"],
-      });*/
-    });
+    // it("The build without issues (raw infos : 4 params)", function () {
+    //   myListener = new Listeners("my-test-service", "fake.rss.service", 15, [
+    //     ["description", ["media:group", "media:description"]],
+    //     ["icon", ["media:group", "media:thumbnail"]],
+    //   ]);
+    //
+    //   // assertions
+    //   // myListener data
+    //   expect(myListener.timeloop).to.eql(15);
+    //   expect(myListener.name).to.eql("my-test-service");
+    //   expect(myListener.address).to.eql("fake.rss.service");
+    //   expect(myListener.customfields).to.eql([
+    //     ["description", ["media:group", "media:description"]],
+    //     ["icon", ["media:group", "media:thumbnail"]],
+    //   ]);
+    //   /*
+    //   expect(myListener.parser.options.customFields).to.eql({
+    //     feed: [],
+    //     item: ["media:group", "media:group"],
+    //   });*/
+    // });
+    // it("The build without issues (raw infos : just 2 params)", function () {
+    //   myListener = new Listeners("my-test-service", "fake.rss.service");
+    //
+    //   // assertions
+    //   // myListener data
+    //   expect(myListener.timeloop).to.eql(5 * 60);
+    //   expect(myListener.name).to.eql("my-test-service");
+    //   expect(myListener.address).to.eql("fake.rss.service");
+    //   expect(myListener.customfields).to.eql(undefined);
+    //   /*
+    //   expect(myListener.parser.options.customFields).to.eql({
+    //     feed: [],
+    //     item: [],
+    //   });*/
+    // });
+    // it("The build without issues (raw infos : just 3 params (no custom fields))", function () {
+    //   myListener = new Listeners("my-test-service", "fake.rss.service", 15);
+    //
+    //   // assertions
+    //   // myListener data
+    //   expect(myListener.timeloop).to.eql(15);
+    //   expect(myListener.name).to.eql("my-test-service");
+    //   expect(myListener.address).to.eql("fake.rss.service");
+    //   expect(myListener.customfields).to.eql(undefined);
+    //   /*
+    //   expect(myListener.parser.options.customFields).to.eql({
+    //     feed: [],
+    //     item: [],
+    //   });*/
+    // });
+    // it("The build without issues (raw infos : just 3 params (no timeloop))", function () {
+    //   myListener = new Listeners(
+    //     "my-test-service",
+    //     "fake.rss.service",
+    //     undefined,
+    //     [
+    //       ["description", ["media:group", "media:description"]],
+    //       ["icon", ["media:group", "media:thumbnail"]],
+    //     ]
+    //   );
+    //
+    //   // assertions
+    //   // myListener data
+    //   expect(myListener.timeloop).to.eql(5 * 60);
+    //   expect(myListener.name).to.eql("my-test-service");
+    //   expect(myListener.address).to.eql("fake.rss.service");
+    //   expect(myListener.customfields).to.eql([
+    //     ["description", ["media:group", "media:description"]],
+    //     ["icon", ["media:group", "media:thumbnail"]],
+    //   ]);
+    //   /*
+    //   expect(myListener.parser.options.customFields).to.eql({
+    //     feed: [],
+    //     item: ["media:group", "media:group"],
+    //   });*/
+    // });
   });
 
   describe("fetch some data", function () {
@@ -202,7 +203,7 @@ describe("test class RSS: jsonfile", function () {
       // calls
       expect(stubParser.parseURL).to.have.been.calledOnce;
       expect(stubParser.parseURL).to.have.been.calledWith(
-        infosListener._address
+        infosListener.address
       );
       // Promise
       //await expect(Promise.resolve(res)).to.be.eql(mockedRSSOutput);
@@ -214,15 +215,14 @@ describe("test class RSS: jsonfile", function () {
     });
     it("fetch with bad address", function () {
       // classic build
-      myListener = new Listeners(
-        "my-test-service",
-        "bad.rss.service",
-        undefined,
-        [
+      myListener = new Listeners({
+        name: "my-test-service",
+        address: "bad.rss.service",
+        customfields: [
           ["description", ["media:group", "media:description"]],
           ["icon", ["media:group", "media:thumbnail"]],
-        ]
-      );
+        ],
+      });
       myListener.parser = stubParser; // replace the parser by my fake parser
       // fetch
       let res = myListener.fetchRSS();
@@ -245,10 +245,15 @@ describe("test class RSS: jsonfile", function () {
       this.timeout(15000);
 
       // classic build
-      myListener = new Listeners("my-test-service", "fake.rss.service", 2, [
-        ["description", ["media:group", "media:description"]],
-        ["icon", ["media:group", "media:thumbnail"]],
-      ]);
+      myListener = new Listeners({
+        name: "my-test-service",
+        address: "fake.rss.service",
+        timeloop: 2,
+        customfields: [
+          ["description", ["media:group", "media:description"]],
+          ["icon", ["media:group", "media:thumbnail"]],
+        ],
+      });
 
       //spy
       const fun_spy: sinon.default.SinonSpy = sinon.default.spy();
@@ -271,10 +276,15 @@ describe("test class RSS: jsonfile", function () {
       this.timeout(15000);
 
       // classic build
-      myListener = new Listeners("my-test-service", "bad.rss.service", 2, [
-        ["description", ["media:group", "media:description"]],
-        ["icon", ["media:group", "media:thumbnail"]],
-      ]);
+      myListener = new Listeners({
+        name: "my-test-service",
+        address: "fake.rss.service",
+        timeloop: 2,
+        customfields: [
+          ["description", ["media:group", "media:description"]],
+          ["icon", ["media:group", "media:thumbnail"]],
+        ],
+      });
 
       //spy
       const fun_spy: sinon.default.SinonSpy = sinon.default.spy();