fix random test failing part 2 (#3395)

* fix random failing test core search/comment/auth/user

* fix node delete directive

* fix lint issues

* node restore fix

* fix comment test

* remove fdescribe

* fix tests and tslint

* fix upload test

* unsubscribe success event task test

* copy comment object during test

* use the data pipe performance improvement and standard usage

* uncomment random test

* fix comment date random failing test

* disposable unsubscribe

* fix start process

* remove fdescribe

* change start process test and remove commented code

* fix error event check double click

* clone object form test

* refactor date time test

* fix service mock

* fix test dropdown and context

* git hook lint

* fix language test

* unsubscribe documentlist event test

* fix disposable error

* fix console log service error document list

* unusbscribe search test

* clear input field

* remove wrong test

lib/core/language-menu/language-menu.component.spec.ts

@@ -41,12 +41,11 @@ describe('LanguageMenuComponent', () => {
         fixture.destroy();
     });
 
-    it('should have the default language', () => {
-        fixture.detectChanges();
-        expect(component.languages).toEqual([{ key: 'en', label: 'English'}]);
-    });
-
     it('should fetch the languages from the app config if present', () => {
+        fixture.detectChanges();
+
+        expect(component.languages).toEqual([{ key: 'en', label: 'English' }]);
+
         appConfig.config.languages = [
             {
                 key: 'fake-key-1',
@@ -58,7 +57,7 @@ describe('LanguageMenuComponent', () => {
             }
         ];
 
-        fixture.detectChanges();
+        component.ngOnInit();
         expect(component.languages).toEqual([
             {
                 key: 'fake-key-1',