6 files changed, 16 insertions, 18 deletions
diff --git a/js/tests/unit/util/backdrop.spec.js b/js/tests/unit/util/backdrop.spec.js
index b885b60b5..768ba5fe9 100644
--- a/js/tests/unit/util/backdrop.spec.js
+++ b/js/tests/unit/util/backdrop.spec.js
@@ -1,6 +1,6 @@
-import Backdrop from '../../../src/util/backdrop'
-import { getTransitionDurationFromElement } from '../../../src/util/index'
-import { clearFixture, getFixture } from '../../helpers/fixture'
+import Backdrop from '../../../src/util/backdrop.js'
+import { getTransitionDurationFromElement } from '../../../src/util/index.js'
+import { clearFixture, getFixture } from '../../helpers/fixture.js'
 
 const CLASS_BACKDROP = '.modal-backdrop'
 const CLASS_NAME_FADE = 'fade'
diff --git a/js/tests/unit/util/component-functions.spec.js b/js/tests/unit/util/component-functions.spec.js
index edaedd32e..feaefec8c 100644
--- a/js/tests/unit/util/component-functions.spec.js
+++ b/js/tests/unit/util/component-functions.spec.js
@@ -1,8 +1,8 @@
 /* Test helpers */
 
-import { clearFixture, createEvent, getFixture } from '../../helpers/fixture'
-import { enableDismissTrigger } from '../../../src/util/component-functions'
-import BaseComponent from '../../../src/base-component'
+import { clearFixture, createEvent, getFixture } from '../../helpers/fixture.js'
+import { enableDismissTrigger } from '../../../src/util/component-functions.js'
+import BaseComponent from '../../../src/base-component.js'
 
 class DummyClass2 extends BaseComponent {
   static get NAME() {
diff --git a/js/tests/unit/util/focustrap.spec.js b/js/tests/unit/util/focustrap.spec.js
index 99bc95fca..1718cbba2 100644
--- a/js/tests/unit/util/focustrap.spec.js
+++ b/js/tests/unit/util/focustrap.spec.js
@@ -1,7 +1,7 @@
-import FocusTrap from '../../../src/util/focustrap'
-import EventHandler from '../../../src/dom/event-handler'
-import SelectorEngine from '../../../src/dom/selector-engine'
-import { clearFixture, getFixture, createEvent } from '../../helpers/fixture'
+import FocusTrap from '../../../src/util/focustrap.js'
+import EventHandler from '../../../src/dom/event-handler.js'
+import SelectorEngine from '../../../src/dom/selector-engine.js'
+import { clearFixture, getFixture, createEvent } from '../../helpers/fixture.js'
 
 describe('FocusTrap', () => {
   let fixtureEl
diff --git a/js/tests/unit/util/index.spec.js b/js/tests/unit/util/index.spec.js
index 38e94dc6b..968bb5965 100644
--- a/js/tests/unit/util/index.spec.js
+++ b/js/tests/unit/util/index.spec.js
@@ -1,7 +1,5 @@
-import * as Util from '../../../src/util/index'
-
-/** Test helpers */
-import { clearFixture, getFixture } from '../../helpers/fixture'
+import * as Util from '../../../src/util/index.js'
+import { clearFixture, getFixture } from '../../helpers/fixture.js'
 
 describe('Util', () => {
   let fixtureEl
diff --git a/js/tests/unit/util/sanitizer.spec.js b/js/tests/unit/util/sanitizer.spec.js
index 7379d221f..806593bb1 100644
--- a/js/tests/unit/util/sanitizer.spec.js
+++ b/js/tests/unit/util/sanitizer.spec.js
@@ -1,4 +1,4 @@
-import { DefaultAllowlist, sanitizeHtml } from '../../../src/util/sanitizer'
+import { DefaultAllowlist, sanitizeHtml } from '../../../src/util/sanitizer.js'
 
 describe('Sanitizer', () => {
   describe('sanitizeHtml', () => {
diff --git a/js/tests/unit/util/scrollbar.spec.js b/js/tests/unit/util/scrollbar.spec.js
index 280adb8e5..fa2589160 100644
--- a/js/tests/unit/util/scrollbar.spec.js
+++ b/js/tests/unit/util/scrollbar.spec.js
@@ -1,6 +1,6 @@
-import { clearBodyAndDocument, clearFixture, getFixture } from '../../helpers/fixture'
-import Manipulator from '../../../src/dom/manipulator'
-import ScrollBarHelper from '../../../src/util/scrollbar'
+import { clearBodyAndDocument, clearFixture, getFixture } from '../../helpers/fixture.js'
+import Manipulator from '../../../src/dom/manipulator.js'
+import ScrollBarHelper from '../../../src/util/scrollbar.js'
 
 describe('ScrollBar', () => {
   let fixtureEl