From 0f9d77351a4617e41d8d554494112279b93a2d5e Mon Sep 17 00:00:00 2001
From: Mahmut Gundogdu <mahmutgundogdu@hotmail.com.tr>
Date: Tue, 25 Jul 2023 15:01:24 +0300
Subject: [PATCH] Add example test

---
 .../tests/internet-connection.service.spec.ts | 35 +++++++++++++------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/npm/ng-packs/packages/core/src/lib/tests/internet-connection.service.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/internet-connection.service.spec.ts
index 31a63f9006..97f009d931 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/internet-connection.service.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/internet-connection.service.spec.ts
@@ -2,15 +2,18 @@ import { TestBed} from '@angular/core/testing';
 import { DOCUMENT } from '@angular/common';
 
 import { InternetConnectionService } from '../services/internet-connection-service';
-import { BehaviorSubject, first, of, takeLast } from 'rxjs';
-import { computed, signal } from '@angular/core';
+import { first } from 'rxjs';
 
 let service: InternetConnectionService;
 
 describe('Internet connection when disconnected', () => {
-  let mockDocument = { defaultView: {navigator: {onLine: false}, addEventListener: jest.fn()} }
-  
-  beforeEach(() => {
+  const events = {};
+  const addEventListener =  jest.fn((event, callback) => {
+    events[event] = callback;
+  });
+  const mockDocument = { defaultView: {navigator: {onLine: false}, addEventListener } }
+
+  beforeAll(() => {
     TestBed.configureTestingModule({
       providers:[{provide:DOCUMENT, useValue: mockDocument}]
     })
@@ -32,11 +35,21 @@ describe('Internet connection when disconnected', () => {
       done();
     });
   });
+
+  test.each(['offline',"online"])('should addEventListener for "%i",event',(v)=>{
+    expect(events[v]).toBeTruthy()
+  })
+
+  test.each([['offline',false],["online",true]])('should called %i, then value must be %i',(eventName,value)=>{
+    events[eventName]()
+    expect(service.networkStatus()).toEqual(value);
+  })
+
 });
 
 describe('Internet connection when connected', () => {
-  let mockDocument = { defaultView: {navigator: {onLine: true}, addEventListener: jest.fn()} }
-  
+  const mockDocument = { defaultView: {navigator: {onLine: true}, addEventListener: jest.fn()} }
+
   beforeEach(() => {
     TestBed.configureTestingModule({
       providers:[{provide:DOCUMENT, useValue: mockDocument}]
@@ -58,9 +71,9 @@ describe('Internet connection when connected', () => {
 });
 
 describe('when connection value changes', () => {
-  let mockDocument = { defaultView: {navigator: {onLine: true}, addEventListener: (eventName,cb)=>{
+  const mockDocument = { defaultView: {navigator: {onLine: true}, addEventListener: (eventName,cb)=>{
     window.addEventListener(eventName,cb)
-  }, dispatchEvent: function(event){
+  }, dispatchEvent: function(){
     this.navigator.onLine = !this.navigator.onLine
   }}}
 
@@ -70,7 +83,7 @@ describe('when connection value changes', () => {
     })
     service = TestBed.inject(InternetConnectionService);
   });
-  
+
   it('check is signal value changes', () => {
     expect(service.networkStatus()).toEqual(true);
     const event = new Event("offline");
@@ -93,4 +106,4 @@ describe('when connection value changes', () => {
       done()
     });
   });
-});
\ No newline at end of file
+});