diff --git a/packages/@lwc/integration-not-karma/configs/plugins/serve-integration.js b/packages/@lwc/integration-not-karma/configs/plugins/serve-integration.js
index 6604e74d08..d3a5bb6044 100644
--- a/packages/@lwc/integration-not-karma/configs/plugins/serve-integration.js
+++ b/packages/@lwc/integration-not-karma/configs/plugins/serve-integration.js
@@ -1,4 +1,5 @@
 import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 import { rollup } from 'rollup';
 import lwcRollupPlugin from '@lwc/rollup-plugin';
 
@@ -9,6 +10,8 @@ import {
     DISABLE_SYNTHETIC_SHADOW_SUPPORT_IN_COMPILER,
 } from '../../helpers/options.js';
 
+const UTILS = fileURLToPath(new URL('../../helpers/utils.js', import.meta.url));
+
 /** Cache reused between each compilation to speed up the compilation time. */
 let cache;
 
@@ -22,7 +25,7 @@ const createRollupPlugin = (input, options) => {
         // Sourcemaps don't work with Istanbul coverage
         sourcemap: !process.env.COVERAGE,
         experimentalDynamicComponent: {
-            loader: 'test-utils',
+            loader: UTILS,
             strict: true,
         },
         enableDynamicComponents: true,
@@ -85,7 +88,7 @@ const transform = async (ctx) => {
 
         // Rollup should not attempt to resolve the engine and the test utils, Karma takes care of injecting it
         // globally in the page before running the tests.
-        external: ['lwc', 'wire-service', 'test-utils', '@test/loader'],
+        external: ['lwc', 'wire-service', '@test/loader', UTILS],
 
         onwarn(warning, warn) {
             // Ignore warnings from our own Rollup plugin
diff --git a/packages/@lwc/integration-not-karma/helpers/test-hydrate.js b/packages/@lwc/integration-not-karma/helpers/test-hydrate.js
index 5b65bdc6c2..95c8823860 100644
--- a/packages/@lwc/integration-not-karma/helpers/test-hydrate.js
+++ b/packages/@lwc/integration-not-karma/helpers/test-hydrate.js
@@ -1,8 +1,8 @@
 import * as LWC from 'lwc';
+import { spyConsole } from './console';
+import { setHooks } from './hooks';
 
-window.TestUtils.setHooks({
-    sanitizeHtmlContent: (content) => content,
-});
+setHooks({ sanitizeHtmlContent: (content) => content });
 
 function parseStringToDom(html) {
     return Document.parseHTMLUnsafe(html).body.firstChild;
@@ -28,7 +28,7 @@ async function runTest(ssrRendered, Component, testConfig) {
     let target = container.querySelector(selector);
 
     let testResult;
-    const consoleSpy = window.TestUtils.spyConsole();
+    const consoleSpy = spyConsole();
     setFeatureFlags(testConfig.requiredFeatureFlags, true);
 
     if (testConfig.test) {
diff --git a/packages/@lwc/integration-not-karma/mocks/lwc.mjs b/packages/@lwc/integration-not-karma/mocks/lwc.mjs
deleted file mode 100644
index 023844a214..0000000000
--- a/packages/@lwc/integration-not-karma/mocks/lwc.mjs
+++ /dev/null
@@ -1,6 +0,0 @@
-// IMPORTANT: we must use @lwc/engine-dom instead of lwc in order to avoid circular imports
-import { sanitizeAttribute as _sanitizeAttribute } from '@lwc/engine-dom';
-import { fn } from '@vitest/spy';
-
-export * from '@lwc/engine-dom';
-export const sanitizeAttribute = fn(_sanitizeAttribute);
diff --git a/packages/@lwc/integration-not-karma/test/accessibility/non-standard-aria-props/index.spec.js b/packages/@lwc/integration-not-karma/test/accessibility/non-standard-aria-props/index.spec.js
index 63557204e4..e47812f130 100644
--- a/packages/@lwc/integration-not-karma/test/accessibility/non-standard-aria-props/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/accessibility/non-standard-aria-props/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
+import Light from 'x/light';
+import Shadow from 'x/shadow';
 import {
     attachReportingControlDispatcher,
     detachReportingControlDispatcher,
     nonStandardAriaProperties,
-} from 'test-utils';
-import Light from 'x/light';
-import Shadow from 'x/shadow';
+} from '../../../helpers/utils.js';
 
 // This test only works if the ARIA reflection polyfill is loaded
 describe.runIf(process.env.ENABLE_ARIA_REFLECTION_GLOBAL_POLYFILL)(
diff --git a/packages/@lwc/integration-not-karma/test/accessibility/synthetic-cross-root-aria/index.spec.js b/packages/@lwc/integration-not-karma/test/accessibility/synthetic-cross-root-aria/index.spec.js
index ec0ccf10fe..62dfe7b28b 100644
--- a/packages/@lwc/integration-not-karma/test/accessibility/synthetic-cross-root-aria/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/accessibility/synthetic-cross-root-aria/index.spec.js
@@ -1,8 +1,11 @@
 import { createElement } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 
 import AriaContainer from 'x/ariaContainer';
 import Valid from 'x/valid';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 const expectedMessageForCrossRoot =
     'Error: [LWC warn]: Element <input> uses attribute "aria-labelledby" to reference element <label>, which is not in the same shadow root. This will break in native shadow DOM. For details, see: https://sfdc.co/synthetic-aria\n<x-aria-source>';
diff --git a/packages/@lwc/integration-not-karma/test/act/index.spec.js b/packages/@lwc/integration-not-karma/test/act/index.spec.js
index 0db058d7d3..2c18617b86 100644
--- a/packages/@lwc/integration-not-karma/test/act/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/act/index.spec.js
@@ -15,7 +15,7 @@ import UiAnother from 'ui/another';
 import UiOutputPercent from 'ui/outputpercent';
 import ForceFoo from 'force/foo';
 import NestedHtmlTags from 'nested/htmlTags';
-import { extractDataIds } from 'test-utils';
+import { extractDataIds } from '../../helpers/utils.js';
 import testProps from './act-components/test-props';
 import testAttrs from './act-components/test-attrs';
 import testBodySlot from './act-components/test-body-slot';
diff --git a/packages/@lwc/integration-not-karma/test/api/CustomElementConstructor-getter/index.spec.js b/packages/@lwc/integration-not-karma/test/api/CustomElementConstructor-getter/index.spec.js
index 1454fb81f9..88e77d02f2 100644
--- a/packages/@lwc/integration-not-karma/test/api/CustomElementConstructor-getter/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/api/CustomElementConstructor-getter/index.spec.js
@@ -1,5 +1,4 @@
 import { LightningElement } from 'lwc';
-import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from 'test-utils';
 
 import ReflectElement from 'x/reflect';
 import LifecycleParent from 'x/lifecycleParent';
@@ -10,6 +9,8 @@ import AttrChanged from 'x/attrChanged';
 import ReflectCamel from 'x/reflectCamel';
 import WithChildElmsHasSlot from 'x/withChildElmsHasSlot';
 import WithChildElmsHasSlotLight from 'x/withChildElmsHasSlotLight';
+import { spyConsole } from '../../../helpers/utils.js';
+import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from '../../../helpers/utils.js';
 
 const vFragBookend = USE_COMMENTS_FOR_FRAGMENT_BOOKENDS ? '<!---->' : '';
 
@@ -68,7 +69,7 @@ it('should create custom element if it exists before customElements.define', ()
 describe('non-empty custom element', () => {
     let consoleSpy;
     beforeEach(() => {
-        consoleSpy = TestUtils.spyConsole();
+        consoleSpy = spyConsole();
     });
     afterEach(() => {
         consoleSpy.reset();
diff --git a/packages/@lwc/integration-not-karma/test/api/createElement/index.spec.js b/packages/@lwc/integration-not-karma/test/api/createElement/index.spec.js
index 54c3b8f6e8..bf4c3485d8 100644
--- a/packages/@lwc/integration-not-karma/test/api/createElement/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/api/createElement/index.spec.js
@@ -1,8 +1,11 @@
 import { createElement, LightningElement, setFeatureFlagForTest } from 'lwc';
-import { isNativeShadowRootInstance, isSyntheticShadowRootInstance } from 'test-utils';
 
 import Test from 'x/test';
 import ShadowRootGetter from 'x/shadowRootGetter';
+import {
+    isNativeShadowRootInstance,
+    isSyntheticShadowRootInstance,
+} from '../../../helpers/utils.js';
 
 function testInvalidOptions(type, option) {
     it(`throws a TypeError if option is a ${type}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/api/freezeTemplate/index.spec.js b/packages/@lwc/integration-not-karma/test/api/freezeTemplate/index.spec.js
index 1a52a7f404..ee604f8644 100644
--- a/packages/@lwc/integration-not-karma/test/api/freezeTemplate/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/api/freezeTemplate/index.spec.js
@@ -1,6 +1,9 @@
 import { registerTemplate, freezeTemplate, setFeatureFlagForTest } from 'lwc';
 
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 describe('freezeTemplate', () => {
     let dispatcher;
diff --git a/packages/@lwc/integration-not-karma/test/api/getComponentDef/index.spec.js b/packages/@lwc/integration-not-karma/test/api/getComponentDef/index.spec.js
index f346662d0a..069f81f106 100644
--- a/packages/@lwc/integration-not-karma/test/api/getComponentDef/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/api/getComponentDef/index.spec.js
@@ -1,5 +1,4 @@
 import { LightningElement, api, getComponentDef, createElement } from 'lwc';
-import { ariaProperties } from 'test-utils';
 
 import PublicProperties from 'x/publicProperties';
 import PublicAccessors from 'x/publicAccessors';
@@ -8,6 +7,7 @@ import PublicPropertiesInheritance from 'x/publicPropertiesInheritance';
 import PublicMethodsInheritance from 'x/publicMethodsInheritance';
 import PrivateAccessors from 'x/privateAccessors';
 import HtmlElementProps from 'x/htmlElementProps';
+import { ariaProperties } from '../../../helpers/utils.js';
 
 function testInvalidComponentConstructor(name, ctor) {
     it(`should throw for ${name}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/api/sanitizeHtmlContent/index.spec.js b/packages/@lwc/integration-not-karma/test/api/sanitizeHtmlContent/index.spec.js
index 7d328f32ba..2d8ab02a12 100644
--- a/packages/@lwc/integration-not-karma/test/api/sanitizeHtmlContent/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/api/sanitizeHtmlContent/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { getHooks, setHooks } from 'test-utils';
-
 import XInnerHtml from 'x/innerHtml';
+import { getHooks, setHooks } from '../../../helpers/utils.js';
 
 const ACTUAL_CONTENT = 'Hello <b>World</b>';
 const ALTERNATIVE_CONTENT = 'Hello <b>LWC</b>';
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.addEventListener/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.addEventListener/index.spec.js
index d5b6603263..033a86f084 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.addEventListener/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.addEventListener/index.spec.js
@@ -1,9 +1,9 @@
 import { createElement } from 'lwc';
-import { spyConsole } from 'test-utils';
 
 import EventHandler from 'x/eventHandler';
 import EventHandlerOptions from 'x/eventHandlerOptions';
 import AdditionWhileDispatch from 'x/additionWhileDispatch';
+import { spyConsole } from '../../../helpers/utils.js';
 
 it('should be able to attach an event listener on the host element', () => {
     let thisValue;
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/api/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/api/index.spec.js
index 2cca6a70b2..7382a011ac 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/api/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/api/index.spec.js
@@ -1,13 +1,13 @@
 import { createElement } from 'lwc';
-import {
-    customElementCallbackReactionErrorListener,
-    ENABLE_ELEMENT_INTERNALS_AND_FACE,
-    IS_SYNTHETIC_SHADOW_LOADED,
-} from 'test-utils';
 
 import ShadowDomCmp from 'ai/shadowDom';
 import LightDomCmp from 'ai/lightDom';
 import BasicCmp from 'ai/basic';
+import {
+    customElementCallbackReactionErrorListener,
+    ENABLE_ELEMENT_INTERNALS_AND_FACE,
+    IS_SYNTHETIC_SHADOW_LOADED,
+} from '../../../../helpers/utils.js';
 
 const testConnectedCallbackError = (elm, msg) => {
     const error = customElementCallbackReactionErrorListener(() => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/formAssociated/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/formAssociated/index.spec.js
index a8bae0b3ae..059b780dea 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/formAssociated/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/formAssociated/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { ENABLE_ELEMENT_INTERNALS_AND_FACE, IS_SYNTHETIC_SHADOW_LOADED } from 'test-utils';
 
 import NotFormAssociated from 'x/notFormAssociated';
 import FormAssociated from 'x/formAssociated';
@@ -7,6 +6,10 @@ import FormAssociatedFalse from 'x/formAssociatedFalse';
 import NotFormAssociatedNoAttachInternals from 'x/notFormAssociatedNoAttachInternals';
 import FormAssociatedNoAttachInternals from 'x/formAssociatedNoAttachInternals';
 import FormAssociatedFalseNoAttachInternals from 'x/formAssociatedFalseNoAttachInternals';
+import {
+    ENABLE_ELEMENT_INTERNALS_AND_FACE,
+    IS_SYNTHETIC_SHADOW_LOADED,
+} from '../../../../../helpers/utils.js';
 
 describe.runIf(
     ENABLE_ELEMENT_INTERNALS_AND_FACE &&
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/ei/component/component.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/ei/component/component.js
index 747ad42073..50243d3cdb 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/ei/component/component.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/ei/component/component.js
@@ -1,5 +1,5 @@
 import { LightningElement, api } from 'lwc';
-import { ariaProperties } from 'test-utils';
+import { ariaProperties } from '../../../../../../../helpers/utils.js';
 
 export default class extends LightningElement {
     @api
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/index.spec.js
index b09ab3f324..fd3b3ddb8a 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.attachInternals/elementInternals/sanity/index.spec.js
@@ -1,7 +1,10 @@
 import { createElement } from 'lwc';
-import { ariaProperties, ariaAttributes, ENABLE_ELEMENT_INTERNALS_AND_FACE } from 'test-utils';
-
 import ElementInternal from 'ei/component';
+import {
+    ariaProperties,
+    ariaAttributes,
+    ENABLE_ELEMENT_INTERNALS_AND_FACE,
+} from '../../../../../helpers/utils.js';
 
 let elm;
 beforeEach(() => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.connectedCallback/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.connectedCallback/index.spec.js
index f684e9cc01..c8f24f45d8 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.connectedCallback/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.connectedCallback/index.spec.js
@@ -1,9 +1,9 @@
 import { createElement } from 'lwc';
-import { customElementCallbackReactionErrorListener } from 'test-utils';
 
 import Test from 'x/test';
 import ConnectedCallbackThrow from 'x/connectedCallbackThrow';
 import XSlottedParent from 'x/slottedParent';
+import { customElementCallbackReactionErrorListener } from '../../../helpers/utils.js';
 
 function testConnectSlot(name, fn) {
     it(`should invoke the connectedCallback the root element is added in the DOM via ${name}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.disconnectedCallback/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.disconnectedCallback/index.spec.js
index bc5ef3c281..21a6b1ee51 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.disconnectedCallback/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.disconnectedCallback/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
-import { customElementCallbackReactionErrorListener } from 'test-utils';
 
 import Slotted from 'x/slotted';
 import Test from 'x/test';
 import DisconnectedCallbackThrow from 'x/disconnectedCallbackThrow';
 import DualTemplate from 'x/dualTemplate';
 import ExplicitRender from 'x/explicitRender';
+import { customElementCallbackReactionErrorListener } from '../../../helpers/utils.js';
 
 function testDisconnectSlot(name, fn) {
     it(`should invoke the disconnectedCallback when root element is removed from the DOM via ${name}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.errorCallback/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.errorCallback/index.spec.js
index 8327da842d..cc8e675245 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.errorCallback/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.errorCallback/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import XBoundaryChildConstructorThrow from 'x/boundaryChildConstructorThrow';
 import XBoundaryChildConnectedThrow from 'x/boundaryChildConnectedThrow';
 import XBoundaryChildRenderThrow from 'x/boundaryChildRenderThrow';
@@ -31,6 +30,7 @@ import XParentThrowsOnMutateChildRenderedThrows from 'x/parentThrowsOnMutateChil
 import XParentThrowsOnMutateChildConnectedThrows from 'x/parentThrowsOnMutateChildConnectedThrows';
 
 import XNoThrowOnMutate from 'x/noThrowOnMutate';
+import { catchUnhandledRejectionsAndErrors } from '../../../helpers/utils.js';
 
 describe('error boundary', () => {
     it('should propagate frozen error to errorCallback()', () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.hostElement/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.hostElement/index.spec.js
index eab762c30a..a504f48f73 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.hostElement/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.hostElement/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { ENABLE_THIS_DOT_HOST_ELEMENT } from 'test-utils';
-
 import Wrapper from 'x/wrapper';
+import { ENABLE_THIS_DOT_HOST_ELEMENT } from '../../../helpers/utils.js';
 
 function createWrapper() {
     const elm = createElement('x-wrapper', { is: Wrapper });
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.render/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.render/index.spec.js
index 67459268c2..ddf6b2a9e3 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.render/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.render/index.spec.js
@@ -1,9 +1,9 @@
 import { createElement, registerTemplate } from 'lwc';
-import { customElementCallbackReactionErrorListener } from 'test-utils';
 
 import DynamicTemplate, { template1, template2 } from 'x/dynamicTemplate';
 import RenderThrow from 'x/renderThrow';
 import RenderInvalid from 'x/renderInvalid';
+import { customElementCallbackReactionErrorListener } from '../../../helpers/utils.js';
 
 function testInvalidTemplate(type, template) {
     it(`throws an error if returns ${type}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/LightningElement.style/index.spec.js b/packages/@lwc/integration-not-karma/test/component/LightningElement.style/index.spec.js
index 50a1d1bac6..5c59661634 100644
--- a/packages/@lwc/integration-not-karma/test/component/LightningElement.style/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/LightningElement.style/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { ENABLE_THIS_DOT_STYLE } from 'test-utils';
 import Test from 'x/test';
+import { ENABLE_THIS_DOT_STYLE } from '../../../helpers/utils.js';
 
 it.runIf(ENABLE_THIS_DOT_STYLE)(
     'this.style should return the CSSStyleDeclaration of host element',
diff --git a/packages/@lwc/integration-not-karma/test/component/aria-reflection/index.spec.js b/packages/@lwc/integration-not-karma/test/component/aria-reflection/index.spec.js
index fe94faaffd..8e1b5dceca 100644
--- a/packages/@lwc/integration-not-karma/test/component/aria-reflection/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/aria-reflection/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { ariaPropertiesMapping, extractDataIds } from 'test-utils';
 import NoPropDeclared from 'x/noPropDeclared';
 import PropDeclared from 'x/propDeclared';
 import ApiPropDeclared from 'x/apiPropDeclared';
@@ -8,6 +7,7 @@ import NoPropDeclaredNoSuper from 'x/noPropDeclaredNoSuper';
 import PropDeclaredNoSuper from 'x/propDeclaredNoSuper';
 import ApiPropDeclaredNoSuper from 'x/apiPropDeclaredNoSuper';
 import TrackPropDeclaredNoSuper from 'x/trackPropDeclaredNoSuper';
+import { ariaPropertiesMapping, extractDataIds } from '../../../helpers/utils.js';
 
 describe('aria reflection', () => {
     // Test with and without a custom superclass, since we may set the property accessor differently in each case
diff --git a/packages/@lwc/integration-not-karma/test/component/decorators/api/index.spec.js b/packages/@lwc/integration-not-karma/test/component/decorators/api/index.spec.js
index e141a962f7..ce2175d3d9 100644
--- a/packages/@lwc/integration-not-karma/test/component/decorators/api/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/decorators/api/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement, LightningElement, api } from 'lwc';
-import { getPropertyDescriptor } from 'test-utils';
 
 import GetterSetterAndProp from 'x/getterSetterAndProp';
 import Properties from 'x/properties';
@@ -14,6 +13,7 @@ import ExtendsMixin from 'x/extendsMixin';
 import StaticProperty from 'x/staticProperty';
 import duplicatePropertyTemplate from 'x/duplicatePropertyTemplate';
 import NoSetter from 'x/noSetter';
+import { getPropertyDescriptor } from '../../../../helpers/utils.js';
 
 describe('properties', () => {
     it('should expose class properties with the api decorator', () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/decorators/api/x/getterSetterAndProp/getterSetterAndProp.js b/packages/@lwc/integration-not-karma/test/component/decorators/api/x/getterSetterAndProp/getterSetterAndProp.js
index 000d9159b1..99a1dddc6d 100644
--- a/packages/@lwc/integration-not-karma/test/component/decorators/api/x/getterSetterAndProp/getterSetterAndProp.js
+++ b/packages/@lwc/integration-not-karma/test/component/decorators/api/x/getterSetterAndProp/getterSetterAndProp.js
@@ -1,5 +1,5 @@
 import { LightningElement, api } from 'lwc';
-import { getPropertyDescriptor } from 'test-utils';
+import { getPropertyDescriptor } from '../../../../../../helpers/utils.js';
 
 export default class GetterSetter extends LightningElement {
     _getterSetterProp;
diff --git a/packages/@lwc/integration-not-karma/test/component/default-export/index.spec.js b/packages/@lwc/integration-not-karma/test/component/default-export/index.spec.js
index 7849553f37..bc738e9a7c 100644
--- a/packages/@lwc/integration-not-karma/test/component/default-export/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/default-export/index.spec.js
@@ -1,6 +1,5 @@
 import Component from 'x/component';
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import ExportAsDefault from 'x/exportAsDefault';
 import ExportAsDefaultWithOtherExports, {
     exportee as exporteeAsDefault,
@@ -8,6 +7,7 @@ import ExportAsDefaultWithOtherExports, {
 import ExportDefaultClassWithOtherExports, {
     exportee as exporteeDefaultClass,
 } from 'x/exportDefaultClassWithOtherExports';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('default export', () => {
     it('should work when a module exports non-components as default', () => {
diff --git a/packages/@lwc/integration-not-karma/test/component/dynamic-imports/index.spec.js b/packages/@lwc/integration-not-karma/test/component/dynamic-imports/index.spec.js
index 63dd76e64f..891bf7e098 100644
--- a/packages/@lwc/integration-not-karma/test/component/dynamic-imports/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/dynamic-imports/index.spec.js
@@ -10,7 +10,7 @@ import LwcDynamicSlotted from 'x/lwcDynamicSlotted';
 import ContainerFoo from 'x/containerFoo';
 import ContainerBar from 'x/containerBar';
 
-import { registerForLoad, clearRegister, spyConsole } from 'test-utils';
+import { registerForLoad, clearRegister, spyConsole } from '../../../helpers/utils.js';
 
 beforeEach(() => {
     clearRegister();
diff --git a/packages/@lwc/integration-not-karma/test/component/face-callbacks/index.spec.js b/packages/@lwc/integration-not-karma/test/component/face-callbacks/index.spec.js
index bd646f0fa8..2460c870a1 100644
--- a/packages/@lwc/integration-not-karma/test/component/face-callbacks/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/face-callbacks/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
-import { ENABLE_ELEMENT_INTERNALS_AND_FACE } from 'test-utils';
 
 import Container from 'x/container';
 import FormAssociated from 'x/formAssociated';
 import NotFormAssociated from 'x/notFormAssociated';
 import LightDomFormAssociated from 'x/lightDomFormAssociated';
 import LightDomNotFormAssociated from 'x/lightDomNotFormAssociated';
+import { ENABLE_ELEMENT_INTERNALS_AND_FACE } from '../../../helpers/utils.js';
 
 const createFormElement = () => {
     const container = createElement('face-container', { is: Container });
diff --git a/packages/@lwc/integration-not-karma/test/component/native-vs-synthetic-lifecycle/index.spec.js b/packages/@lwc/integration-not-karma/test/component/native-vs-synthetic-lifecycle/index.spec.js
index 57a780ac11..d5de11dd7a 100644
--- a/packages/@lwc/integration-not-karma/test/component/native-vs-synthetic-lifecycle/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/native-vs-synthetic-lifecycle/index.spec.js
@@ -1,9 +1,12 @@
 import { createElement, setFeatureFlagForTest } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 
 import Component from 'x/component';
 import Parent from 'x/parent';
 import LogsWhenConnected from 'x/logsWhenConnected';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 let logger;
 let dispatcher;
diff --git a/packages/@lwc/integration-not-karma/test/component/properties/index.spec.js b/packages/@lwc/integration-not-karma/test/component/properties/index.spec.js
index c85cb02bfd..23dc287617 100644
--- a/packages/@lwc/integration-not-karma/test/component/properties/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/properties/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { ariaProperties } from 'test-utils';
-
 import Component from 'x/component';
+import { ariaProperties } from '../../../helpers/utils.js';
 
 // This list can grow as we add more properties to the base LightningElement
 const expectedEnumerableProps = [
diff --git a/packages/@lwc/integration-not-karma/test/component/refs/index.spec.js b/packages/@lwc/integration-not-karma/test/component/refs/index.spec.js
index 43df5a09d2..410987cfe2 100644
--- a/packages/@lwc/integration-not-karma/test/component/refs/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/component/refs/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import Basic from 'x/basic';
 import BasicDynamic from 'x/basicDynamic';
 import None from 'x/none';
@@ -28,6 +27,7 @@ import AccessDuringRender from 'x/accessDuringRender';
 import RerenderElement from 'x/rerenderElement';
 import RerenderComponent from 'x/rerenderComponent';
 import RerenderElementStaticRef from 'x/rerenderElementStaticRef';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('refs', () => {
     describe('basic refs example', () => {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/events/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/events/index.spec.js
index 8ae04694e5..8a769f7e4d 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/events/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/events/index.spec.js
@@ -1,9 +1,9 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 
 import LightChild from 'x/lightChild';
 import ShadowContainer from 'x/shadowContainer';
 import LightContainer from 'x/lightContainer';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function createTestElement(tag, component) {
     const elm = createElement(tag, { is: component });
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/lifecycle/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/lifecycle/index.spec.js
index 52b3ffe5f2..5459dc7bf1 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/lifecycle/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/lifecycle/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
-import { extractDataIds, USE_LIGHT_DOM_SLOT_FORWARDING } from 'test-utils';
 
 import SlotForwarding from 'x/slotForwarding';
 import DynamicSlotForwarding from 'x/dynamicSlotForwarding';
 import StandardSlotting from 'x/standardSlotting';
 import BasicContainer from 'x/basicContainer';
+import { extractDataIds, USE_LIGHT_DOM_SLOT_FORWARDING } from '../../../helpers/utils.js';
 
 import { resetId } from './util.js';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/light-parent-shadow-child/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/light-parent-shadow-child/index.spec.js
index 856e5cf80d..bed2552ad0 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/light-parent-shadow-child/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/light-parent-shadow-child/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import LightParent from 'x/lightParent';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('light parent with shadow child', () => {
     it('should render properly', () => {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/root/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/root/index.spec.js
index ad5e11ce10..ac386238f4 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/root/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/root/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import LightElement from 'x/light';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function createTestElement(tag, component) {
     const elm = createElement(tag, { is: component });
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/if-block/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/if-block/index.spec.js
index e94eed6779..37e781e617 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/if-block/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/if-block/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from 'test-utils';
-
 import MixedSlotParent from 'x/mixedSlotParent';
+import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from '../../../../helpers/utils.js';
 
 const vFragBookend = USE_COMMENTS_FOR_FRAGMENT_BOOKENDS ? '<!---->' : '';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/index.spec.js
index 8aad68654a..da8841b092 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/index.spec.js
@@ -1,11 +1,14 @@
 import { createElement } from 'lwc';
-import { USE_LIGHT_DOM_SLOT_FORWARDING, USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from 'test-utils';
 
 import BasicParent from 'x/basicParent';
 import ParentOfChildWithForEach from 'x/parentOfChildWithForEach';
 import ParentWNoSlotContent from 'x/parentWNoSlotContent';
 import ParentOfChildWithNamedSlots from 'x/parentOfChildWithNamedSlots';
 import NestedSlots from 'x/nestedSlots';
+import {
+    USE_LIGHT_DOM_SLOT_FORWARDING,
+    USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
+} from '../../../helpers/utils.js';
 
 const vFragBookend = USE_COMMENTS_FOR_FRAGMENT_BOOKENDS ? '<!---->' : '';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/runtime-checks/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/runtime-checks/index.spec.js
index af17055a45..72d598a46b 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/runtime-checks/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/scoped-slot/runtime-checks/index.spec.js
@@ -1,8 +1,8 @@
 import { createElement } from 'lwc';
-import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from 'test-utils';
 
 import ParentWithScopedSlotContent from 'x/parentWithScopedSlotContent';
 import ParentWithStandardSlotContent from 'x/parentWithStandardSlotContent';
+import { USE_COMMENTS_FOR_FRAGMENT_BOOKENDS } from '../../../../helpers/utils.js';
 
 const vFragBookend = USE_COMMENTS_FOR_FRAGMENT_BOOKENDS ? '<!---->' : '';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/scoped-styles/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/scoped-styles/index.spec.js
index a54cf52732..f1f27a85e0 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/scoped-styles/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/scoped-styles/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import Basic from 'x/basic';
 import Other from 'x/other';
 import Switchable from 'x/switchable';
 import Unscoped from 'x/unscoped';
 import ShadowWithScoped from 'x/shadowWithScoped';
 import PseudoParent from 'x/pseudoParent';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('Light DOM scoped CSS', () => {
     it('should scope scoped CSS and allow unscoped CSS to leak out', () => {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/shadow-parent-light-child/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/shadow-parent-light-child/index.spec.js
index c975f2b186..032801a176 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/shadow-parent-light-child/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/shadow-parent-light-child/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('shadow parent with light child', () => {
     it('should render properly', () => {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/duplicates/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/duplicates/index.spec.js
index 928d5d6e9e..dc22dce7db 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/duplicates/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/duplicates/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import LightContainer from 'light/container';
 import ShadowContainer from 'shadow/container';
+import { catchUnhandledRejectionsAndErrors } from '../../../../../helpers/utils.js';
 
 const scenarios = [
     {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
index 3a86a5ced4..33f9104d31 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
@@ -3,7 +3,7 @@ import {
     extractDataIds,
     USE_LIGHT_DOM_SLOT_FORWARDING,
     USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-} from 'test-utils';
+} from '../../../../../helpers/utils.js';
 
 import LightContainer from './x/lightContainer/lightContainer';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/reactivity/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/reactivity/index.spec.js
index 741c00abf6..e513410048 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/reactivity/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/slot-fowarding/slots/reactivity/index.spec.js
@@ -1,5 +1,5 @@
 import { createElement } from 'lwc';
-import { extractDataIds, USE_LIGHT_DOM_SLOT_FORWARDING } from 'test-utils';
+import { extractDataIds, USE_LIGHT_DOM_SLOT_FORWARDING } from '../../../../../helpers/utils.js';
 
 import LightContainer from './x/lightContainer/lightContainer';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/slotting/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/slotting/index.spec.js
index b85f8a596b..aa28966534 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/slotting/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/slotting/index.spec.js
@@ -1,11 +1,4 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
-import {
-    USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-    USE_LIGHT_DOM_SLOT_FORWARDING,
-    USE_FRAGMENTS_FOR_LIGHT_DOM_SLOTS,
-} from 'test-utils';
 
 import BasicSlot from 'x/basicSlot';
 import DynamicChildren from 'x/dynamicChildren';
@@ -14,6 +7,12 @@ import ShadowConsumer from 'x/shadowConsumer';
 import ConditionalSlot from 'x/conditionalSlot';
 import ConditionalSlotted from 'x/conditionalSlotted';
 import ForwardedSlotConsumer from 'x/forwardedSlotConsumer';
+import {
+    USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
+    USE_LIGHT_DOM_SLOT_FORWARDING,
+    USE_FRAGMENTS_FOR_LIGHT_DOM_SLOTS,
+} from '../../../helpers/utils.js';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 const vFragBookend = USE_COMMENTS_FOR_FRAGMENT_BOOKENDS ? '<!---->' : '';
 
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow-styles/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow-styles/index.spec.js
index e4b0f3f9a3..fd70fb0bd7 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow-styles/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow-styles/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { LOWERCASE_SCOPE_TOKENS } from 'test-utils';
 import Container from 'x/container';
+import { LOWERCASE_SCOPE_TOKENS } from '../../../helpers/utils.js';
 
 // This test only matters for synthetic shadow
 describe.skipIf(process.env.NATIVE_SHADOW)('Light DOM and synthetic shadow', () => {
diff --git a/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow/index.spec.js
index 31e28ecf75..275a7d2260 100644
--- a/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/light-dom/synthetic-shadow/index.spec.js
@@ -1,8 +1,8 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 
 import LightContainer from 'x/lightContainer';
 import ShadowContainer from 'x/shadowContainer';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('Light DOM + Synthetic Shadow DOM', () => {
     describe('light -> shadow', () => {
diff --git a/packages/@lwc/integration-not-karma/test/lwc-on/index.spec.js b/packages/@lwc/integration-not-karma/test/lwc-on/index.spec.js
index 05ff057b3b..982b9e2a2e 100644
--- a/packages/@lwc/integration-not-karma/test/lwc-on/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/lwc-on/index.spec.js
@@ -11,6 +11,7 @@ import RerenderLoop from 'x/rerenderLoop';
 import PublicProp from 'x/publicProp';
 import ComputedKey from 'x/computedKey';
 import ValueEvaluationThrows from 'x/ValueEvaluationThrows';
+import { catchUnhandledRejectionsAndErrors, spyConsole } from '../../helpers/utils.js';
 
 describe('lwc:on', () => {
     it('adds multiple event listeners', () => {
@@ -152,7 +153,7 @@ describe('lwc:on', () => {
 
         let caughtError;
 
-        TestUtils.catchUnhandledRejectionsAndErrors((error) => {
+        catchUnhandledRejectionsAndErrors((error) => {
             caughtError = error;
         });
 
@@ -254,7 +255,7 @@ describe('lwc:on', () => {
             describe('with same object modified', () => {
                 let consoleSpy;
                 beforeEach(() => {
-                    consoleSpy = TestUtils.spyConsole();
+                    consoleSpy = spyConsole();
                 });
                 afterEach(() => {
                     consoleSpy.reset();
@@ -345,7 +346,7 @@ describe('lwc:on', () => {
             describe('with same object modified', () => {
                 let consoleSpy;
                 beforeEach(() => {
-                    consoleSpy = TestUtils.spyConsole();
+                    consoleSpy = spyConsole();
                 });
                 afterEach(() => {
                     consoleSpy.reset();
@@ -427,7 +428,7 @@ describe('lwc:on', () => {
 
         let caughtError;
 
-        TestUtils.catchUnhandledRejectionsAndErrors((error) => {
+        catchUnhandledRejectionsAndErrors((error) => {
             caughtError = error;
         });
 
diff --git a/packages/@lwc/integration-not-karma/test/misc/object-rest-spread/index.spec.js b/packages/@lwc/integration-not-karma/test/misc/object-rest-spread/index.spec.js
index f85aac7ea8..360f2b91f2 100644
--- a/packages/@lwc/integration-not-karma/test/misc/object-rest-spread/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/misc/object-rest-spread/index.spec.js
@@ -1,4 +1,4 @@
-import { DISABLE_OBJECT_REST_SPREAD_TRANSFORMATION } from 'test-utils';
+import { DISABLE_OBJECT_REST_SPREAD_TRANSFORMATION } from '../../../helpers/utils.js';
 
 // It's useful to have Karma tests for this, so that we confirm legacy browsers still work
 describe('object rest spread transformation', () => {
diff --git a/packages/@lwc/integration-not-karma/test/mixed-api-version/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-api-version/index.spec.js
index fc6af275a5..320f5c45d7 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-api-version/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-api-version/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import Container from 'x/container';
 import UseApiVersion60 from 'x/useApiVersion60';
+import { extractDataIds } from '../../helpers/utils.js';
 
 describe('mixed API versions', () => {
     it('should trigger connected callback for v60 component rendered late inside non-portal <div>', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/LightningElement.shadowSupportMode/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/LightningElement.shadowSupportMode/index.spec.js
index a3342133f0..05e4bddffa 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/LightningElement.shadowSupportMode/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/LightningElement.shadowSupportMode/index.spec.js
@@ -1,15 +1,15 @@
 import { createElement } from 'lwc';
-import {
-    isNativeShadowRootInstance,
-    isSyntheticShadowRootInstance,
-    IS_SYNTHETIC_SHADOW_LOADED,
-} from 'test-utils';
 
 import Any from 'x/any';
 import Any2 from 'x/any2';
 import Invalid from 'x/invalid';
 import Valid from 'x/valid';
 import NativeOnly from 'x/native';
+import {
+    isNativeShadowRootInstance,
+    isSyntheticShadowRootInstance,
+    IS_SYNTHETIC_SHADOW_LOADED,
+} from '../../../helpers/utils.js';
 
 describe('shadowSupportMode static property', () => {
     it('should log error for invalid values', () => {
diff --git a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/reporting/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/reporting/index.spec.js
index c130d22ec0..a8ebaf3dea 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/reporting/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/reporting/index.spec.js
@@ -1,9 +1,12 @@
 import { createElement } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 
 import Component from 'x/component';
 import Parent from 'x/parent';
 import Light from 'x/light';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 // Should be kept in sync with the enum in vm.ts
 const ShadowMode = {
diff --git a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/shadowSupportModeReporting/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/shadowSupportModeReporting/index.spec.js
index c70a4f2272..e0e5d25957 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/shadowSupportModeReporting/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/shadowSupportModeReporting/index.spec.js
@@ -1,10 +1,13 @@
 import { createElement } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 
 import Any from 'x/any';
 import Reset from 'x/reset';
 import None from 'x/none';
 import NativeOnly from 'x/native';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 /**
  * These tests must be the first ones to generate the component def for the components they use.
diff --git a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/synthetic-behavior/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/synthetic-behavior/index.spec.js
index 2a57066843..713918e79b 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/synthetic-behavior/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/synthetic-behavior/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { extractDataIds, isNativeShadowRootInstance } from 'test-utils';
 import ParentAnyChildAny from 'x/parentAnyChildAny';
 import ParentAnyChildReset from 'x/parentAnyChildReset';
 import ParentResetChildAny from 'x/parentResetChildAny';
@@ -14,6 +13,7 @@ import GrandparentResetParentAnyChildAny from 'x/grandparentResetParentAnyChildA
 import GrandparentResetParentAnyChildReset from 'x/grandparentResetParentAnyChildReset';
 import GrandparentResetParentResetChildAny from 'x/grandparentResetParentResetChildAny';
 import GrandparentResetParentResetChildReset from 'x/grandparentResetParentResetChildReset';
+import { extractDataIds, isNativeShadowRootInstance } from '../../../helpers/utils.js';
 
 afterEach(() => {
     window.__lwcResetGlobalStylesheets();
diff --git a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/transitivity/index.spec.js b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/transitivity/index.spec.js
index d6707402e0..18b14b83ec 100644
--- a/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/transitivity/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/mixed-shadow-mode/transitivity/index.spec.js
@@ -1,9 +1,12 @@
 import { createElement } from 'lwc';
-import { isNativeShadowRootInstance, isSyntheticShadowRootInstance } from 'test-utils';
 
 import ResetExtendsAny from 'x/resetExtendsAny';
 import LightContainer from 'x/lightContainer';
 import NativeContainer from 'x/nativeContainer';
+import {
+    isNativeShadowRootInstance,
+    isSyntheticShadowRootInstance,
+} from '../../../helpers/utils.js';
 
 describe.skipIf(process.env.NATIVE_SHADOW)('transitivity', () => {
     describe('when root component shadowSupportMode="native"', () => {
diff --git a/packages/@lwc/integration-not-karma/test/polyfills/aria-properties/index.spec.js b/packages/@lwc/integration-not-karma/test/polyfills/aria-properties/index.spec.js
index 05701c536c..81e10ad6fd 100644
--- a/packages/@lwc/integration-not-karma/test/polyfills/aria-properties/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/polyfills/aria-properties/index.spec.js
@@ -1,13 +1,13 @@
+import { createElement } from 'lwc';
+
+import Component from 'x/component';
 import {
     ariaPropertiesMapping,
     nonStandardAriaProperties,
     nonPolyfilledAriaProperties,
     attachReportingControlDispatcher,
     detachReportingControlDispatcher,
-} from 'test-utils';
-import { createElement } from 'lwc';
-
-import Component from 'x/component';
+} from '../../../helpers/utils.js';
 
 function testAriaProperty(property, attribute, suite = describe) {
     suite(property, () => {
diff --git a/packages/@lwc/integration-not-karma/test/regression/invalid-key/index.spec.js b/packages/@lwc/integration-not-karma/test/regression/invalid-key/index.spec.js
index 7777468e2a..b3e092d5f0 100644
--- a/packages/@lwc/integration-not-karma/test/regression/invalid-key/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/regression/invalid-key/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds, spyConsole } from 'test-utils';
 import ConditionalList from 'x/conditionalList';
+import { extractDataIds, spyConsole } from '../../../helpers/utils.js';
 
 it('W-15885661 - renders list when key is invalid (preserve backwards compat)', async () => {
     const elm = createElement('x-conditional-list', { is: ConditionalList });
diff --git a/packages/@lwc/integration-not-karma/test/rendering/callback-invocation-order/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/callback-invocation-order/index.spec.js
index a58ba7d429..b26da33e89 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/callback-invocation-order/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/callback-invocation-order/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import ShadowParent from 'x/shadowParent';
 import ShadowLightParent from 'x/shadowLightParent';
 import LightParent from 'x/lightParent';
@@ -8,6 +7,7 @@ import ToggleContainer from 'x/toggleContainer';
 import MultiTemplateConditionals from 'x/multiTemplateConditionals';
 import ShadowContainerMultipleConditionals from 'x/shadowContainerMultipleConditionals';
 import LightContainerMultipleConditionals from 'x/lightContainerMultipleConditionals';
+import { catchUnhandledRejectionsAndErrors } from '../../../helpers/utils.js';
 
 function resetTimingBuffer() {
     window.timingBuffer = [];
diff --git a/packages/@lwc/integration-not-karma/test/rendering/fragment-cache/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/fragment-cache/index.spec.js
index 14a0d83750..e3690b70c4 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/fragment-cache/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/fragment-cache/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
-import { LOWERCASE_SCOPE_TOKENS } from 'test-utils';
 
 import NativeScopedStyles from 'x/nativeScopedStyles';
 import NativeStyles from 'x/nativeStyles';
 import NoStyles from 'x/noStyles';
 import ScopedStyles from 'x/scopedStyles';
 import Styles from 'x/styles';
+import { LOWERCASE_SCOPE_TOKENS } from '../../../helpers/utils.js';
 
 const scenarios = [
     {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/inner-outer-html/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/inner-outer-html/index.spec.js
index f23e35c9ef..633d63ac95 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/inner-outer-html/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/inner-outer-html/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import Inner from 'x/inner';
 import Outer from 'x/outer';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 beforeAll(() => {
     customElements.define('omg-whatever', class extends HTMLElement {});
diff --git a/packages/@lwc/integration-not-karma/test/rendering/iteration/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/iteration/index.spec.js
index 0ec48f9768..f6d7fa741a 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/iteration/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/iteration/index.spec.js
@@ -1,9 +1,9 @@
-import { extractDataIds } from 'test-utils';
 import { createElement } from 'lwc';
 import ForEach from 'x/forEach';
 import Iterator from 'x/iterator';
 import InlineForEach from 'x/inlineForEach';
 import InlineIterator from 'x/inlineIterator';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe('iteration rendering', () => {
     function validateRenderedChildren(elm, iterationType) {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/legacy-scope-tokens/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/legacy-scope-tokens/index.spec.js
index 74490e3dec..5b369b5fde 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/legacy-scope-tokens/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/legacy-scope-tokens/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement, setFeatureFlagForTest } from 'lwc';
-import { LOWERCASE_SCOPE_TOKENS } from 'test-utils';
 import Light from 'x/light';
 import Shadow from 'x/shadow';
+import { LOWERCASE_SCOPE_TOKENS } from '../../../helpers/utils.js';
 
 describe('legacy scope tokens', () => {
     [false, true].forEach((enableLegacyScopeTokens) => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/sanitize-stylesheet-token/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/sanitize-stylesheet-token/index.spec.js
index 2f22cbc934..99661be5a1 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/sanitize-stylesheet-token/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/sanitize-stylesheet-token/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement, setFeatureFlagForTest } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import Component from 'x/component';
 import Scoping from 'x/scoping';
+import { catchUnhandledRejectionsAndErrors } from '../../../helpers/utils.js';
 
 let caughtError;
 let logger;
diff --git a/packages/@lwc/integration-not-karma/test/rendering/scoped-styles-with-existing-class/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/scoped-styles-with-existing-class/index.spec.js
index 53e0304b86..cece772051 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/scoped-styles-with-existing-class/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/scoped-styles-with-existing-class/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement, setFeatureFlagForTest } from 'lwc';
-import { LOWERCASE_SCOPE_TOKENS } from 'test-utils';
 import Component from 'x/component';
+import { LOWERCASE_SCOPE_TOKENS } from '../../../helpers/utils.js';
 
 // TODO [#3733]: remove support for legacy scope tokens
 [false, true].forEach((enableLegacyScopeTokens) => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/side-effects/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/side-effects/index.spec.js
index 6d0a1910ba..d071787dc3 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/side-effects/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/side-effects/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
-import { spyConsole } from 'test-utils';
 
 import SideEffectDuringRender from 'x/sideEffectDuringRender';
 import SideEffectDuringTemplate from 'x/sideEffectDuringTemplate';
 import SideEffectDuringRenderExternal from 'x/sideEffectDuringRenderExternal';
 import SideEffectDuringTemplateExternal from 'x/sideEffectDuringTemplateExternal';
+import { spyConsole } from '../../../helpers/utils.js';
 
 describe('side effects', () => {
     let consoleSpy;
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/light/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/light/index.spec.js
index 5d2d965717..a9e6f42e4f 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/light/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/light/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
+import Outer from 'x/outer';
 import {
     expectEquivalentDOM,
     USE_LIGHT_DOM_SLOT_FORWARDING,
     USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-} from 'test-utils';
-import Outer from 'x/outer';
+} from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/shadow/index.spec.js
index 2bd8c221e3..a22bfd0b76 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/element/shadow/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { expectEquivalentDOM } from 'test-utils';
 import Outer from 'x/outer';
+import { expectEquivalentDOM } from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/light/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/light/index.spec.js
index fb96f16342..b03fb4aadc 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/light/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/light/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
+import Outer from 'x/outer';
 import {
     expectEquivalentDOM,
     USE_LIGHT_DOM_SLOT_FORWARDING,
     USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-} from 'test-utils';
-import Outer from 'x/outer';
+} from '../../../../../helpers/utils.js';
 
 beforeAll(() => {
     customElements.define('x-external-light', class extends HTMLElement {});
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/shadow/index.spec.js
index 11845a3f97..2bea15b07a 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/external/shadow/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { expectEquivalentDOM } from 'test-utils';
 import Outer from 'x/outer';
+import { expectEquivalentDOM } from '../../../../../helpers/utils.js';
 
 beforeAll(() => {
     customElements.define('x-external-shadow', class extends HTMLElement {});
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/light/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/light/index.spec.js
index 8179af0299..661a39f47c 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/light/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/light/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
+import Outer from 'x/outer';
 import {
     expectEquivalentDOM,
     USE_LIGHT_DOM_SLOT_FORWARDING,
     USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-} from 'test-utils';
-import Outer from 'x/outer';
+} from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/shadow/index.spec.js
index 2192cca74e..74dbd5f4d0 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/ifTrue/shadow/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { expectEquivalentDOM } from 'test-utils';
 import Outer from 'x/outer';
+import { expectEquivalentDOM } from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/light/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/light/index.spec.js
index 8179af0299..661a39f47c 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/light/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/light/index.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
+import Outer from 'x/outer';
 import {
     expectEquivalentDOM,
     USE_LIGHT_DOM_SLOT_FORWARDING,
     USE_COMMENTS_FOR_FRAGMENT_BOOKENDS,
-} from 'test-utils';
-import Outer from 'x/outer';
+} from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/shadow/index.spec.js
index 2192cca74e..74dbd5f4d0 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slot-not-at-top-level/lwcIf/shadow/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { expectEquivalentDOM } from 'test-utils';
 import Outer from 'x/outer';
+import { expectEquivalentDOM } from '../../../../../helpers/utils.js';
 
 // `expectEquivalentDOM` requires `Document.parseHTMLUnsafe`
 it.runIf(Document.parseHTMLUnsafe)('renders slots not at the top level', async () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/slotting/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/slotting/index.spec.js
index 978adc6ecf..e7db89f256 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/slotting/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/slotting/index.spec.js
@@ -1,11 +1,11 @@
 import { createElement } from 'lwc';
-import { spyConsole } from 'test-utils';
 import RenderCountParent from 'x/renderCountParent';
 import FallbackContentReuseParent from 'x/fallbackContentReuseParent';
 import RegressionContainer from 'x/regressionContainer';
 import FallbackContentReuseDynamicKeyParent from 'x/fallbackContentReuseDynamicKeyParent';
 import UnknownSlotShadow from 'x/unknownSlotShadow';
 import UnknownSlotLight from 'x/unknownSlotLight';
+import { spyConsole } from '../../../helpers/utils.js';
 
 // TODO [#1617]: Engine currently has trouble with slotting and invocation of the renderedCallback.
 xit('should not render if the slotted content changes', () => {
diff --git a/packages/@lwc/integration-not-karma/test/rendering/version-mismatch/index.spec.js b/packages/@lwc/integration-not-karma/test/rendering/version-mismatch/index.spec.js
index dd44e7644e..fab876beaf 100644
--- a/packages/@lwc/integration-not-karma/test/rendering/version-mismatch/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/rendering/version-mismatch/index.spec.js
@@ -1,9 +1,12 @@
 import { createElement, LightningElement, registerTemplate, registerComponent } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 
 import Component from 'x/component';
 import ComponentWithProp from 'x/componentWithProp';
 import ComponentWithTemplateAndStylesheet from 'x/componentWithTemplateAndStylesheet';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 describe('compiler version mismatch', () => {
     describe('stamped with version number', () => {
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/Element-properties/Element.assignedSlot.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/Element-properties/Element.assignedSlot.spec.js
index 6c4ed4575a..7f72b7ce69 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/Element-properties/Element.assignedSlot.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/Element-properties/Element.assignedSlot.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { getHostChildNodes } from 'test-utils';
 
 import SimpleParent from 'x/simpleParent';
 import SlottedParent from 'x/slotted';
@@ -7,6 +6,7 @@ import SlottedCustomElement from 'x/slottedCustomElement';
 import SlotReceiver from 'x/slot';
 import CustomElementAsDefaultSlot from 'x/customElementAsDefaultSlot';
 import TextSlotted from 'x/textSlotted';
+import { getHostChildNodes } from '../../../helpers/utils.js';
 
 describe('assignedSlot', () => {
     it('should return null when custom element is not in slot', () => {
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/Event-methods/index.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/Event-methods/index.spec.js
index 1b847b168e..f9808fa356 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/Event-methods/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/Event-methods/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function dispatchEventWithLog(target, nodes, event) {
     const log = [];
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.addEventListener.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.addEventListener.spec.js
index f679c72dff..b3000c7013 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.addEventListener.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.addEventListener.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function createShadowTree(parentNode) {
     const elm = createElement('x-container', { is: Container });
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.removeEventListener.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.removeEventListener.spec.js
index d21e793292..8775a8e0f5 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.removeEventListener.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/EventTarget-methods/EventTarget.removeEventListener.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function createShadowTree(parentNode) {
     const elm = createElement('x-container', { is: Container });
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/HTMLSlotElement-properties/HTMLSlotElement-assigned.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/HTMLSlotElement-properties/HTMLSlotElement-assigned.spec.js
index f4a1f97323..294fa1eda2 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/HTMLSlotElement-properties/HTMLSlotElement-assigned.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/HTMLSlotElement-properties/HTMLSlotElement-assigned.spec.js
@@ -1,10 +1,10 @@
 import { createElement } from 'lwc';
-import { extractShadowDataIds } from 'test-utils';
 
 import NoDirectChild from 'x/noDirectChild';
 import Basic from 'x/basic';
 import SlotsInSlots from 'x/slotsInSlots';
 import Complex from 'x/complex';
+import { extractShadowDataIds } from '../../../helpers/utils.js';
 
 describe('ignore non direct host children', () => {
     let elm;
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/Node-properties/Node.childNodes.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/Node-properties/Node.childNodes.spec.js
index 0f76702e01..533228f80f 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/Node-properties/Node.childNodes.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/Node-properties/Node.childNodes.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { getHostChildNodes } from 'test-utils';
 
 import Slotted from 'x/slotted';
 import SlottedParent from 'x/slottedParent';
@@ -8,6 +7,7 @@ import UnslottedParent from 'x/unslottedParent';
 import HasNoSlot from 'x/hasNoSlot';
 import Parent from 'x/parent';
 import SimpleParent from 'x/simpleParent';
+import { getHostChildNodes } from '../../../helpers/utils.js';
 
 describe('Node.childNodes', () => {
     it('should return the right children Nodes - x-slotted', () => {
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/ShadowRoot.elementsFromPoint/index.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/ShadowRoot.elementsFromPoint/index.spec.js
index d5bf175cc9..98ac4973a2 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/ShadowRoot.elementsFromPoint/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/ShadowRoot.elementsFromPoint/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement } from 'lwc';
 import Container from 'x/container';
 import Grandparent from 'x/grandparent';
-import { extractShadowDataIds } from 'test-utils';
+import { extractShadowDataIds } from '../../../helpers/utils.js';
 
 // The browsers disagree on whether elements _above_ the shadow root should also be included
 // when calling shadowRoot.elementsFromPoint(). Firefox only returns elements inside of the
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/event-post-dispatch.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/event-post-dispatch.spec.js
index 649afaae4d..4d1607e176 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/event-post-dispatch.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/event-post-dispatch.spec.js
@@ -2,9 +2,8 @@
 // https://github.com/web-platform-tests/wpt/blob/master/shadow-dom/event-post-dispatch.html
 
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function assertEventStateReset(evt) {
     expect(evt.eventPhase).toBe(0);
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/propagation.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/propagation.spec.js
index ba2920bab0..aa9c81d892 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/propagation.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/event-in-shadow-tree/propagation.spec.js
@@ -2,9 +2,8 @@
 // https://github.com/web-platform-tests/wpt/blob/master/shadow-dom/event-inside-shadow-tree.html
 
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
-
 import Container from 'x/container';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function dispatchEventWithLog(target, nodes, event) {
     const log = [];
diff --git a/packages/@lwc/integration-not-karma/test/shadow-dom/part-and-exportparts/index.spec.js b/packages/@lwc/integration-not-karma/test/shadow-dom/part-and-exportparts/index.spec.js
index 6fb5dc44ca..373a01d248 100644
--- a/packages/@lwc/integration-not-karma/test/shadow-dom/part-and-exportparts/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/shadow-dom/part-and-exportparts/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import Grandparent from 'x/grandparent';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 describe.runIf(process.env.NATIVE_SHADOW)('part and exportparts', () => {
     it('supports part and exportparts', () => {
diff --git a/packages/@lwc/integration-not-karma/test/signal/protocol/x/signal/signal.js b/packages/@lwc/integration-not-karma/test/signal/protocol/x/signal/signal.js
index a88e8a5ef3..27a1f7b098 100644
--- a/packages/@lwc/integration-not-karma/test/signal/protocol/x/signal/signal.js
+++ b/packages/@lwc/integration-not-karma/test/signal/protocol/x/signal/signal.js
@@ -1,7 +1,7 @@
 // Note for testing purposes the signal implementation uses LWC module resolution to simplify things.
 // In production the signal will come from a 3rd party library.
 
-import { addTrustedSignal } from 'test-utils';
+import { addTrustedSignal } from '../../../../../helpers/utils.js';
 
 export class Signal {
     subscribers = new Set();
diff --git a/packages/@lwc/integration-not-karma/test/signal/reactivity/x/signal/signal.js b/packages/@lwc/integration-not-karma/test/signal/reactivity/x/signal/signal.js
index 21fd9ea483..c174e53d93 100644
--- a/packages/@lwc/integration-not-karma/test/signal/reactivity/x/signal/signal.js
+++ b/packages/@lwc/integration-not-karma/test/signal/reactivity/x/signal/signal.js
@@ -1,7 +1,7 @@
 // Note for testing purposes the signal implementation uses LWC module resolution to simplify things.
 // In production the signal will come from a 3rd party library.
 
-import { addTrustedSignal } from 'test-utils';
+import { addTrustedSignal } from '../../../../../helpers/utils.js';
 
 export class Signal {
     subscribers = new Set();
diff --git a/packages/@lwc/integration-not-karma/test/spread/index.spec.js b/packages/@lwc/integration-not-karma/test/spread/index.spec.js
index 68f69035d1..a093933ad1 100644
--- a/packages/@lwc/integration-not-karma/test/spread/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/spread/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
 import Test from 'x/test';
-import { getHooks, setHooks } from 'test-utils';
+import { getHooks, setHooks } from '../../helpers/utils.js';
 
 function setSanitizeHtmlContentHookForTest(impl) {
     const { sanitizeHtmlContent } = getHooks();
diff --git a/packages/@lwc/integration-not-karma/test/static-content/index.spec.js b/packages/@lwc/integration-not-karma/test/static-content/index.spec.js
index 07945e00fe..a38d7c1a2a 100644
--- a/packages/@lwc/integration-not-karma/test/static-content/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/static-content/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement } from 'lwc';
-import { extractDataIds, LOWERCASE_SCOPE_TOKENS } from 'test-utils';
 import Container from 'x/container';
 import Escape from 'x/escape';
 import MultipleStyles from 'x/multipleStyles';
@@ -24,6 +23,7 @@ import Text from 'x/text';
 import TableWithExpression from 'x/tableWithExpressions';
 import TextWithoutPreserveComments from 'x/textWithoutPreserveComments';
 import TextWithPreserveComments from 'x/textWithPreserveComments';
+import { extractDataIds, LOWERCASE_SCOPE_TOKENS } from '../../helpers/utils.js';
 
 describe.skipIf(process.env.NATIVE_SHADOW)('Mixed mode for static content', () => {
     ['native', 'synthetic'].forEach((firstRenderMode) => {
diff --git a/packages/@lwc/integration-not-karma/test/swapping/styles/index.spec.js b/packages/@lwc/integration-not-karma/test/swapping/styles/index.spec.js
index 1da1911952..d9f1a21e00 100644
--- a/packages/@lwc/integration-not-karma/test/swapping/styles/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/swapping/styles/index.spec.js
@@ -1,5 +1,4 @@
 import { createElement, swapStyle, swapTemplate } from 'lwc';
-import { extractDataIds } from 'test-utils';
 import ShadowUsesStaticStylesheets from 'shadow/usesStaticStylesheets';
 import LightUsesStaticStylesheets from 'light/usesStaticStylesheets';
 import LightGlobalUsesStaticStylesheets from 'light-global/usesStaticStylesheets';
@@ -15,6 +14,7 @@ import libraryStyle from 'x/library';
 import libraryStyleV2 from 'x/libraryV2';
 import IdenticalStylesheets from 'shadow/identicalStylesheets';
 import IdenticalStylesheetsContainer from 'shadow/identicalStylesheetsContainer';
+import { extractDataIds } from '../../../helpers/utils.js';
 
 function expectStyles(elm, styles) {
     const computed = getComputedStyle(elm);
diff --git a/packages/@lwc/integration-not-karma/test/synthetic-shadow/disable-synthetic-shadow/index.spec.js b/packages/@lwc/integration-not-karma/test/synthetic-shadow/disable-synthetic-shadow/index.spec.js
index d7ae52a839..d34fa47233 100644
--- a/packages/@lwc/integration-not-karma/test/synthetic-shadow/disable-synthetic-shadow/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/synthetic-shadow/disable-synthetic-shadow/index.spec.js
@@ -1,6 +1,9 @@
 import { createElement, setFeatureFlagForTest } from 'lwc';
-import { IS_SYNTHETIC_SHADOW_LOADED, isSyntheticShadowRootInstance } from 'test-utils';
 import Component from 'x/component';
+import {
+    IS_SYNTHETIC_SHADOW_LOADED,
+    isSyntheticShadowRootInstance,
+} from '../../../helpers/utils.js';
 
 describe.runIf(IS_SYNTHETIC_SHADOW_LOADED && !process.env.FORCE_NATIVE_SHADOW_MODE_FOR_TEST)(
     'DISABLE_SYNTHETIC_SHADOW',
diff --git a/packages/@lwc/integration-not-karma/test/synthetic-shadow/shadow-token/index.spec.js b/packages/@lwc/integration-not-karma/test/synthetic-shadow/shadow-token/index.spec.js
index c6a065ee2f..da8ca50807 100644
--- a/packages/@lwc/integration-not-karma/test/synthetic-shadow/shadow-token/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/synthetic-shadow/shadow-token/index.spec.js
@@ -1,4 +1,4 @@
-import { IS_SYNTHETIC_SHADOW_LOADED } from 'test-utils';
+import { IS_SYNTHETIC_SHADOW_LOADED } from '../../../helpers/utils.js';
 
 // From @lwc/shared/src/keys.ts
 const KEY__SHADOW_RESOLVER = '$shadowResolver$';
diff --git a/packages/@lwc/integration-not-karma/test/template/attribute-aria/index.spec.js b/packages/@lwc/integration-not-karma/test/template/attribute-aria/index.spec.js
index 754394f135..18d67c58ea 100644
--- a/packages/@lwc/integration-not-karma/test/template/attribute-aria/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/attribute-aria/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { ariaAttributes, ariaProperties, ariaPropertiesMapping } from 'test-utils';
-
 import Parent from 'x/parent';
+import { ariaAttributes, ariaProperties, ariaPropertiesMapping } from '../../../helpers/utils.js';
 
 describe('setting aria attributes', () => {
     let childComponent;
diff --git a/packages/@lwc/integration-not-karma/test/template/attribute-aria/x/child/child.js b/packages/@lwc/integration-not-karma/test/template/attribute-aria/x/child/child.js
index 9184370c8e..6ce64f4ed8 100644
--- a/packages/@lwc/integration-not-karma/test/template/attribute-aria/x/child/child.js
+++ b/packages/@lwc/integration-not-karma/test/template/attribute-aria/x/child/child.js
@@ -1,5 +1,5 @@
 import { LightningElement, api } from 'lwc';
-import { ariaProperties } from 'test-utils';
+import { ariaProperties } from '../../../../../helpers/utils.js';
 
 export default class extends LightningElement {
     @api
diff --git a/packages/@lwc/integration-not-karma/test/template/attribute-class/object-values.spec.js b/packages/@lwc/integration-not-karma/test/template/attribute-class/object-values.spec.js
index 6b7449e225..ac9550e6f8 100644
--- a/packages/@lwc/integration-not-karma/test/template/attribute-class/object-values.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/attribute-class/object-values.spec.js
@@ -1,8 +1,8 @@
 import { createElement } from 'lwc';
-import { TEMPLATE_CLASS_NAME_OBJECT_BINDING } from 'test-utils';
 
 import Dynamic from 'x/dynamic';
 import Reactive from 'x/reactive';
+import { TEMPLATE_CLASS_NAME_OBJECT_BINDING } from '../../../helpers/utils.js';
 
 function createDynamicClass(value) {
     const elm = createElement('x-dynamic', { is: Dynamic });
diff --git a/packages/@lwc/integration-not-karma/test/template/directive-for-each/index.spec.js b/packages/@lwc/integration-not-karma/test/template/directive-for-each/index.spec.js
index fd13f4dd1a..dca99a8b84 100644
--- a/packages/@lwc/integration-not-karma/test/template/directive-for-each/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/directive-for-each/index.spec.js
@@ -1,9 +1,9 @@
 import { createElement } from 'lwc';
-import { spyConsole } from 'test-utils';
 import XTest from 'x/test';
 import XTestStatic from 'x/testStatic';
 import XTestCustomElement from 'x/testCustomElement';
 import ArrayNullPrototype from 'x/arrayNullPrototype';
+import { spyConsole } from '../../../helpers/utils.js';
 
 function testForEach(type, obj) {
     it(`should render ${type}`, () => {
diff --git a/packages/@lwc/integration-not-karma/test/template/directive-lwc-inner-html/index.spec.js b/packages/@lwc/integration-not-karma/test/template/directive-lwc-inner-html/index.spec.js
index 5b3f8976b1..e612ce814c 100644
--- a/packages/@lwc/integration-not-karma/test/template/directive-lwc-inner-html/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/directive-lwc-inner-html/index.spec.js
@@ -1,7 +1,6 @@
 import { createElement } from 'lwc';
-import { getHooks, setHooks } from 'test-utils';
-
 import XInnerHtml from 'x/innerHtml';
+import { getHooks, setHooks } from '../../../helpers/utils.js';
 
 let originalSanitizeHtmlContent;
 
diff --git a/packages/@lwc/integration-not-karma/test/template/directive-lwc-render-mode/index.spec.js b/packages/@lwc/integration-not-karma/test/template/directive-lwc-render-mode/index.spec.js
index dd2ccde1f1..63bd8d564f 100644
--- a/packages/@lwc/integration-not-karma/test/template/directive-lwc-render-mode/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/directive-lwc-render-mode/index.spec.js
@@ -1,7 +1,10 @@
 import { createElement } from 'lwc';
-import { attachReportingControlDispatcher, detachReportingControlDispatcher } from 'test-utils';
 import Shadow from 'x/shadow';
 import Light from 'x/light';
+import {
+    attachReportingControlDispatcher,
+    detachReportingControlDispatcher,
+} from '../../../helpers/utils.js';
 
 describe('lwc:render-mode', () => {
     let dispatcher;
diff --git a/packages/@lwc/integration-not-karma/test/template/escape-attr-name/index.spec.js b/packages/@lwc/integration-not-karma/test/template/escape-attr-name/index.spec.js
index 39f3fc15fe..23e391dee4 100644
--- a/packages/@lwc/integration-not-karma/test/template/escape-attr-name/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/escape-attr-name/index.spec.js
@@ -1,7 +1,7 @@
 import { createElement } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import BooleanValue from 'x/booleanValue';
 import StringValue from 'x/stringValue';
+import { catchUnhandledRejectionsAndErrors } from '../../../helpers/utils.js';
 
 // Browsers treat attribute names containing the ` (backtick) character differently
 // depending on whether the HTML is parsed or you call `setAttribute` directly.
diff --git a/packages/@lwc/integration-not-karma/test/template/escape-tag-name/index.spec.js b/packages/@lwc/integration-not-karma/test/template/escape-tag-name/index.spec.js
index a4f3d48861..49ef186274 100644
--- a/packages/@lwc/integration-not-karma/test/template/escape-tag-name/index.spec.js
+++ b/packages/@lwc/integration-not-karma/test/template/escape-tag-name/index.spec.js
@@ -1,6 +1,6 @@
 import { createElement } from 'lwc';
-import { catchUnhandledRejectionsAndErrors } from 'test-utils';
 import Component from 'x/component';
+import { catchUnhandledRejectionsAndErrors } from '../../../helpers/utils.js';
 
 // Browsers treat tag names containing the \ (backslash) character differently
 // depending on whether the HTML is parsed or you call `createElement` directly.
diff --git a/yarn.lock b/yarn.lock
index e9b07563be..aa76d417ba 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3207,6 +3207,11 @@
   resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-5.1.9.tgz#9f00abff2a17687e675ce6669e7b53c9e7d145f0"
   integrity sha512-8t4HtkW4wxiPVedMpeZ63n3vlWxEIquo/zc1Tm8ElU+SqVV7+D3Na2PWaJUp179AzTragMWVwkMv7mvty0NfyQ==
 
+"@types/jasmine@^5.1.9":
+  version "5.1.9"
+  resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-5.1.9.tgz#9f00abff2a17687e675ce6669e7b53c9e7d145f0"
+  integrity sha512-8t4HtkW4wxiPVedMpeZ63n3vlWxEIquo/zc1Tm8ElU+SqVV7+D3Na2PWaJUp179AzTragMWVwkMv7mvty0NfyQ==
+
 "@types/json-schema@^7.0.15":
   version "7.0.15"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.15.tgz#596a1747233694d50f6ad8a7869fcb6f56cf5841"