Merge branch 'master' into mkirova/fix-6540-master

Author: ChronosSF

projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts

@@ -419,7 +419,8 @@ export class IgxForOfDirective<T> implements OnInit, OnChanges, DoCheck, OnDestr
             });
             const destructor = takeUntil<any>(this.destroy$);
             this.contentResizeNotify.pipe(destructor,
-            filter(() => this.igxForContainerSize && this.igxForOf && this.igxForOf.length > 0), throttleTime(40))
+            filter(() => this.igxForContainerSize && this.igxForOf && this.igxForOf.length > 0),
+            throttleTime(40, undefined, {leading: true, trailing: true}))
             .subscribe(() => {
                 this._zone.runTask(() => {
                     this.updateSizes();

projects/igniteui-angular/src/lib/grids/grid/grid-mrl-keyboard-nav.spec.ts

@@ -1637,6 +1637,7 @@ describe('IgxGrid Multi Row Layout - Keyboard navigation #grid', () => {
             ]
         }];
         fix.detectChanges();
+        await wait(DEBOUNCETIME * 2);
 
         let firstCell;
         let secondCell;

projects/igniteui-angular/src/lib/grids/grid/grid.master-detail.spec.ts

@@ -217,6 +217,7 @@ describe('IgxGrid Master Detail #grid', () => {
 
             grid.expansionStates = newExpanded;
             fix.detectChanges();
+            await wait(DEBOUNCETIME);
 
             const newData = [...grid.data].slice(0, 4);
             newData.splice(1, 1);
@@ -308,10 +309,12 @@ describe('IgxGrid Master Detail #grid', () => {
     });
 
     describe('Keyboard Navigation ', () => {
-        beforeEach(async(() => {
+        beforeEach(async(async() => {
             fix = TestBed.createComponent(AllExpandedGridMasterDetailComponent);
             fix.detectChanges();
             grid = fix.componentInstance.grid;
+            await wait(DEBOUNCETIME * 4);
+            fix.detectChanges();
         }));
 
         it('Should navigate down through a detail view by focusing the whole row and continuing onto the next with arrow down.',
@@ -485,6 +488,7 @@ describe('IgxGrid Master Detail #grid', () => {
         });
 
         it('Should navigate to the correct row/cell when using the navigateTo method in a grid with expanded detail views.', async() => {
+            await wait(DEBOUNCETIME);
             grid.navigateTo(20, 0);
             await wait(DEBOUNCETIME);
             fix.detectChanges();

projects/igniteui-angular/src/lib/grids/hierarchical-grid/hierarchical-grid.integration.spec.ts

@@ -590,12 +590,13 @@ describe('IgxHierarchicalGrid Integration #hGrid', () => {
             hierarchicalGrid.paging = true;
             hierarchicalGrid.perPage = 20;
             hierarchicalGrid.reflow();
-            await wait();
+            await wait(60);
             fixture.detectChanges();
             expect(hierarchicalGrid.hasVerticalSroll()).toBeTruthy();
             hierarchicalGrid.perPage = 5;
             await wait(30);
             fixture.detectChanges();
+            await wait(30);
 
             expect(hierarchicalGrid.hasVerticalSroll()).toBeFalsy();
 
@@ -623,8 +624,9 @@ describe('IgxHierarchicalGrid Integration #hGrid', () => {
             await wait(30);
             fixture.detectChanges();
             hierarchicalGrid.verticalScrollContainer.scrollTo(hierarchicalGrid.dataView.length - 1);
-            await wait(30);
+            await wait(60);
             fixture.detectChanges();
+            await wait(60);
 
             // check last row is loaded and is in view
             rows = hierarchicalGrid.rowList.toArray();