From 37cf7d11b94edf5d6f239cd287b5aae000ede934 Mon Sep 17 00:00:00 2001
From: GeoSot <geo.sotis@gmail.com>
Date: Wed, 8 Jun 2022 22:35:09 +0300
Subject: [PATCH] Scrollspy: enable smooth-scroll behavior (#36528)

---
 js/src/scrollspy.js             | 2 +-
 js/tests/unit/scrollspy.spec.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/src/scrollspy.js b/js/src/scrollspy.js
index 323194c53420..33447c2bd5ed 100644
--- a/js/src/scrollspy.js
+++ b/js/src/scrollspy.js
@@ -128,7 +128,7 @@ class ScrollSpy extends BaseComponent {
         const root = this._rootElement || window
         const height = observableSection.offsetTop - this._element.offsetTop
         if (root.scrollTo) {
-          root.scrollTo({ top: height })
+          root.scrollTo({ top: height, behavior: 'smooth' })
           return
         }
 
diff --git a/js/tests/unit/scrollspy.spec.js b/js/tests/unit/scrollspy.spec.js
index 2cfc480392b3..2bdeb5830cff 100644
--- a/js/tests/unit/scrollspy.spec.js
+++ b/js/tests/unit/scrollspy.spec.js
@@ -889,7 +889,7 @@ describe('ScrollSpy', () => {
 
       setTimeout(() => {
         if (div.scrollTo) {
-          expect(clickSpy).toHaveBeenCalledWith({ top: observable.offsetTop - div.offsetTop })
+          expect(clickSpy).toHaveBeenCalledWith({ top: observable.offsetTop - div.offsetTop, behavior: 'smooth' })
         } else {
           expect(clickSpy).toHaveBeenCalledWith(observable.offsetTop - div.offsetTop)
         }