test(client): drive the autocomplete reposition on the fake clock

The specs gated their assertions on a real setTimeout(..., 10) plus done,
which is wall-clock timing: a loaded runner can assert before the
component's own timer fires, and the negative case would then pass
vacuously. fakeAsync + tick order the assertion on the scheduler instead.

Also drops the stale half of the viewbox resize comment - the shared tail
no longer notifies listeners, it just persists and re-measures.

client/src/app/shared/autocomplete/autocomplete.component.spec.ts

@@ -1,4 +1,5 @@
 import { EventEmitter } from '@angular/core'
+import { fakeAsync, tick } from '@angular/core/testing'
 import { AutocompleteComponent } from './autocomplete.component'
 
 /**
@@ -8,27 +9,28 @@ import { AutocompleteComponent } from './autocomplete.component'
  * this subscription is the only thing keeping an open dropdown aligned.
  *
  * The component only needs ChangeDetectorRef and EventService, so it can be
- * constructed directly - same approach as the sidebar spec.
+ * constructed directly - same approach as the sidebar spec. The work it
+ * schedules is on a timer, so the specs drive the fake clock rather than
+ * sleeping: a wall-clock wait would let a slow runner assert before the
+ * component ever ran.
  */
 describe('AutocompleteComponent', () => {
   const buildComponent = (eventService: any) =>
     new AutocompleteComponent({ detectChanges: () => {} } as any, eventService)
 
-  it('repositions the dropdown when the sidebar toggles', (done) => {
+  it('repositions the dropdown when the sidebar toggles', fakeAsync(() => {
     const eventService: any = { onSidebarToggle: new EventEmitter<any>() }
     const component = buildComponent(eventService)
     const reposition = spyOn(component, 'calculateInputPosition')
     component.ngOnInit()
 
     eventService.onSidebarToggle.emit({ open: false })
+    tick()
 
-    setTimeout(() => {
-      expect(reposition).toHaveBeenCalled()
-      done()
-    }, 10)
-  })
+    expect(reposition).toHaveBeenCalled()
+  }))
 
-  it('stops listening once destroyed', (done) => {
+  it('stops listening once destroyed', fakeAsync(() => {
     const eventService: any = { onSidebarToggle: new EventEmitter<any>() }
     const component = buildComponent(eventService)
     const reposition = spyOn(component, 'calculateInputPosition')
@@ -36,10 +38,8 @@ describe('AutocompleteComponent', () => {
     component.ngOnDestroy()
 
     eventService.onSidebarToggle.emit({ open: false })
+    tick()
 
-    setTimeout(() => {
-      expect(reposition).not.toHaveBeenCalled()
-      done()
-    }, 10)
-  })
+    expect(reposition).not.toHaveBeenCalled()
+  }))
 })

client/src/app/shared/viewboxes/viewboxes.component.ts

@@ -694,9 +694,8 @@ export class ViewboxesComponent implements OnInit, AfterViewInit, OnDestroy {
 
   /**
    * Shared debounced tail for every resize path (corner, single-edge,
-   * left-edge) - persists the new size/position, notifies listeners the
-   * viewport changed shape, and refreshes every viewbox's Handsontable
-   * instance to match.
+   * left-edge) - persists the new size/position, then refreshes every
+   * viewbox's Handsontable instance to match.
    */
   private scheduleAfterResizeRefresh(): void {
     this.helperService.debounceCall(1000, () => {