feat(cdk/a11y): fix test errors

BobobUnicorn · BobobUnicorn · commit f102c0cf0e7e · 2022-03-24T14:46:52.000-04:00
diff --git a/src/cdk/tree/tree.ts b/src/cdk/tree/tree.ts
@@ -728,6 +728,7 @@ export class CdkTreeNode<T, K = T> implements FocusableOption, OnDestroy, OnInit
 
   ngOnInit(): void {
     this._parentNodeAriaLevel = getParentNodeAriaLevel(this._elementRef.nativeElement);
+    this._elementRef.nativeElement.setAttribute('aria-level', `${this.level + 1}`);
   }
 
   ngOnDestroy() {

Original file line number	Diff line number	Diff line change
`@@ -728,6 +728,7 @@ export class CdkTreeNode<T, K = T> implements FocusableOption, OnDestroy, OnInit`
`728`	`728`
`729`	`729`	`ngOnInit(): void {`
`730`	`730`	`this._parentNodeAriaLevel = getParentNodeAriaLevel(this._elementRef.nativeElement);`
	`731`	+ this._elementRef.nativeElement.setAttribute('aria-level', `${this.level + 1}`);
`731`	`732`	`}`
`732`	`733`
`733`	`734`	`ngOnDestroy() {`