diff --git a/lib/core/src/lib/datatable/components/columns-selector/columns-selector.component.spec.ts b/lib/core/src/lib/datatable/components/columns-selector/columns-selector.component.spec.ts index 8fb98bea28f..a0b03dafe19 100644 --- a/lib/core/src/lib/datatable/components/columns-selector/columns-selector.component.spec.ts +++ b/lib/core/src/lib/datatable/components/columns-selector/columns-selector.component.spec.ts @@ -21,6 +21,10 @@ import { ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testin import { MatCheckboxHarness } from '@angular/material/checkbox/testing'; import { MatMenuTrigger } from '@angular/material/menu'; import { By } from '@angular/platform-browser'; +import { Observable, Subject } from 'rxjs'; +import { CoreTestingModule } from '../../../testing'; +import { DataColumn } from '../../data/data-column.model'; +import { ColumnsSelectorComponent } from './columns-selector.component'; describe('ColumnsSelectorComponent', () => { let fixture: ComponentFixture;