refactor(grid): fix treegrid failing test

Author: teodosiah

projects/igniteui-angular/src/lib/grids/state.treegrid.spec.ts

@@ -83,7 +83,7 @@ describe('IgxTreeGridState - input properties #tGrid', () => {
 
     it('getState should return corect JSON string', () => {
         // eslint-disable-next-line max-len
-        const initialGridState = '{"columns":[{"pinned":true,"sortable":true,"filterable":true,"editable":false,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"testCss","headerGroupClasses":"","maxWidth":"300px","groupable":false,"movable":false,"hidden":false,"dataType":"number","hasSummary":false,"field":"ID","width":"150px","header":"ID","resizable":true,"searchable":false,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":true,"filterable":true,"editable":false,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":true,"movable":false,"hidden":false,"dataType":"string","hasSummary":false,"field":"Name","width":"150px","header":"Name","resizable":true,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":false,"filterable":true,"editable":true,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":false,"movable":false,"hidden":false,"dataType":"date","hasSummary":true,"field":"Hire Date","width":"140px","header":"Hire Date","resizable":true,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":true,"filterable":true,"editable":true,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":true,"movable":false,"hidden":false,"dataType":"number","hasSummary":false,"field":"Age","width":"110px","header":"Age","resizable":false,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false}],"filtering":{"filteringOperands":[],"operator":0},"advancedFiltering":{},"sorting":[],"paging":{"index":0,"recordsPerPage":5,"metadata":{"countPages":4,"countRecords":18,"error":0}},"cellSelection":[],"rowSelection":[],"columnSelection":[],"rowPinning":[],"expansion":[],"rowIslands":[],"moving":true}';
+        const initialGridState = '{"columns":[{"pinned":true,"sortable":true,"filterable":true,"editable":false,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"testCss","headerGroupClasses":"","maxWidth":"300px","groupable":false,"movable":false,"hidden":false,"dataType":"number","hasSummary":false,"field":"ID","width":"150px","header":"ID","resizable":true,"searchable":false,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":true,"filterable":true,"editable":false,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":true,"movable":false,"hidden":false,"dataType":"string","hasSummary":false,"field":"Name","width":"150px","header":"Name","resizable":true,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":false,"filterable":true,"editable":true,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":false,"movable":false,"hidden":false,"dataType":"date","hasSummary":true,"field":"Hire Date","width":"140px","header":"Hire Date","resizable":true,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false},{"pinned":false,"sortable":true,"filterable":true,"editable":true,"sortingIgnoreCase":true,"filteringIgnoreCase":true,"headerClasses":"","headerGroupClasses":"","maxWidth":"300px","groupable":true,"movable":false,"hidden":false,"dataType":"number","hasSummary":false,"field":"Age","width":"110px","header":"Age","resizable":false,"searchable":true,"selectable":true,"parent":null,"columnGroup":false,"disableHiding":false}],"filtering":{"filteringOperands":[],"operator":0},"advancedFiltering":{},"sorting":[],"paging":{"index":0,"recordsPerPage":5,"metadata":{"countPages":4,"countRecords":18,"error":0}},"cellSelection":[],"rowSelection":[],"columnSelection":[],"rowPinning":[],"expansion":[],"moving":true,"rowIslands":[]}';
         fix.detectChanges();
 
         const state = fix.componentInstance.state;