From bea548eafdc012599f491c39f6d6a3da9df9ab16 Mon Sep 17 00:00:00 2001
From: Kristiyan Kostadinov <crisbeto@abv.bg>
Date: Thu, 29 Oct 2026 13:05:48 +0100
Subject: [PATCH] fix(cdk/testing): enable bubbling for input-related events

Enables bubbling for fake input-related events to match how the browser behaves.

Fixes #34017.
---
 src/cdk/scrolling/scroll-dispatcher.spec.ts            | 2 +-
 src/cdk/testing/testbed/fake-events/element-focus.ts   | 6 +++---
 src/cdk/testing/testbed/fake-events/type-in-element.ts | 6 +++---
 src/cdk/testing/testbed/unit-test-element.ts           | 2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/cdk/scrolling/scroll-dispatcher.spec.ts b/src/cdk/scrolling/scroll-dispatcher.spec.ts
index 286ffb262af0..376677213e64 100644
--- a/src/cdk/scrolling/scroll-dispatcher.spec.ts
+++ b/src/cdk/scrolling/scroll-dispatcher.spec.ts
@@ -103,7 +103,7 @@ describe('ScrollDispatcher', () => {
       scroll.register(scrollable);
       scroll.deregister(scrollable);
 
-      dispatchFakeEvent(fixture.componentInstance.scrollingElement.nativeElement, 'scroll');
+      dispatchFakeEvent(fixture.componentInstance.scrollingElement.nativeElement, 'scroll', false);
       fixture.detectChanges();
 
       expect(scrollSpy).not.toHaveBeenCalled();
diff --git a/src/cdk/testing/testbed/fake-events/element-focus.ts b/src/cdk/testing/testbed/fake-events/element-focus.ts
index 935b8a6a3386..66a37719ceea 100644
--- a/src/cdk/testing/testbed/fake-events/element-focus.ts
+++ b/src/cdk/testing/testbed/fake-events/element-focus.ts
@@ -15,7 +15,7 @@ function triggerFocusChange(element: HTMLElement, event: 'focus' | 'blur') {
   element[event]();
   element.removeEventListener(event, handler);
   if (!eventFired) {
-    dispatchFakeEvent(element, event);
+    dispatchFakeEvent(element, event, false);
   }
 }
 
@@ -28,8 +28,8 @@ function triggerFocusChange(element: HTMLElement, event: 'focus' | 'blur') {
 // TODO: Check if this element focus patching is still needed for local testing,
 // where browser is not necessarily focused.
 export function patchElementFocus(element: HTMLElement) {
-  element.focus = () => dispatchFakeEvent(element, 'focus');
-  element.blur = () => dispatchFakeEvent(element, 'blur');
+  element.focus = () => dispatchFakeEvent(element, 'focus', false);
+  element.blur = () => dispatchFakeEvent(element, 'blur', false);
 }
 
 /** @docs-private */
diff --git a/src/cdk/testing/testbed/fake-events/type-in-element.ts b/src/cdk/testing/testbed/fake-events/type-in-element.ts
index aff0b330dd7d..fd57af426585 100644
--- a/src/cdk/testing/testbed/fake-events/type-in-element.ts
+++ b/src/cdk/testing/testbed/fake-events/type-in-element.ts
@@ -163,7 +163,7 @@ export function typeInElement(element: HTMLElement, ...modifiersAndKeys: any[])
     if (isInput && key.key && key.key.length === 1) {
       if (enterValueIncrementally) {
         (element as HTMLInputElement | HTMLTextAreaElement).value += key.key;
-        dispatchFakeEvent(element, 'input');
+        dispatchFakeEvent(element, 'input', true);
       }
     }
     dispatchKeyboardEvent(element, 'keyup', key.keyCode, key.key, modifiers, key.code);
@@ -171,7 +171,7 @@ export function typeInElement(element: HTMLElement, ...modifiersAndKeys: any[])
 
   // Since we weren't dispatching `input` events while sending the keys, we have to do it now.
   if (!enterValueIncrementally) {
-    dispatchFakeEvent(element, 'input');
+    dispatchFakeEvent(element, 'input', true);
   }
 }
 
@@ -182,5 +182,5 @@ export function typeInElement(element: HTMLElement, ...modifiersAndKeys: any[])
 export function clearElement(element: HTMLInputElement | HTMLTextAreaElement) {
   triggerFocus(element as HTMLElement);
   element.value = '';
-  dispatchFakeEvent(element, 'input');
+  dispatchFakeEvent(element, 'input', true);
 }
diff --git a/src/cdk/testing/testbed/unit-test-element.ts b/src/cdk/testing/testbed/unit-test-element.ts
index 9edb55433497..1a281464dc40 100644
--- a/src/cdk/testing/testbed/unit-test-element.ts
+++ b/src/cdk/testing/testbed/unit-test-element.ts
@@ -254,7 +254,7 @@ export class UnitTestElement implements TestElement {
 
       if (option.selected !== wasSelected) {
         hasChanged = true;
-        dispatchFakeEvent(this.element, 'change');
+        dispatchFakeEvent(this.element, 'change', true);
       }
     }