👌🚚 move stubZoneJs in its own module

packages/core/src/browser/addEventListener.spec.ts

@@ -1,4 +1,4 @@
-import { stubZoneJs } from '../../test/specHelper'
+import { stubZoneJs } from '../../test/stubZoneJs'
 import { noop } from '../tools/utils'
 
 import { addEventListener, DOM_EVENT } from './addEventListener'

packages/core/src/tools/getZoneJsOriginalValue.spec.ts

@@ -1,4 +1,4 @@
-import { stubZoneJs } from '../../test/specHelper'
+import { stubZoneJs } from '../../test/stubZoneJs'
 
 import { getZoneJsOriginalValue } from './getZoneJsOriginalValue'
 import { noop } from './utils'

packages/core/test/specHelper.ts

@@ -4,7 +4,6 @@ import { resetNavigationStart } from '../src/tools/timeUtils'
 import { buildUrl } from '../src/tools/urlPolyfill'
 import { noop, objectEntries, assign } from '../src/tools/utils'
 import type { BrowserWindowWithEventBridge } from '../src/transport'
-import type { BrowserWindowWithZoneJs } from '../src/tools/getZoneJsOriginalValue'
 
 // to simulate different build env behavior
 export interface BuildEnvWindow {
@@ -486,31 +485,3 @@ export function interceptRequests() {
     },
   }
 }
-
-export function stubZoneJs() {
-  const browserWindow = window as BrowserWindowWithZoneJs
-  const restorers: Array<() => void> = []
-
-  function getSymbol(name: string) {
-    return `__zone_symbol__${name}`
-  }
-
-  browserWindow.Zone = { __symbol__: getSymbol }
-
-  return {
-    restore: () => {
-      delete browserWindow.Zone
-      restorers.forEach((restorer) => restorer())
-    },
-    getSymbol,
-    replaceProperty<Target, Name extends keyof Target & string>(target: Target, name: Name, replacement: Target[Name]) {
-      const original = target[name]
-      target[name] = replacement
-      ;(target as any)[getSymbol(name)] = original
-      restorers.push(() => {
-        delete (target as any)[getSymbol(name)]
-        target[name] = original
-      })
-    },
-  }
-}

packages/core/test/stubZoneJs.ts

@@ -0,0 +1,29 @@
+import type { BrowserWindowWithZoneJs } from '../src/tools/getZoneJsOriginalValue'
+
+export function stubZoneJs() {
+  const browserWindow = window as BrowserWindowWithZoneJs
+  const restorers: Array<() => void> = []
+
+  function getSymbol(name: string) {
+    return `__zone_symbol__${name}`
+  }
+
+  browserWindow.Zone = { __symbol__: getSymbol }
+
+  return {
+    restore: () => {
+      delete browserWindow.Zone
+      restorers.forEach((restorer) => restorer())
+    },
+    getSymbol,
+    replaceProperty<Target, Name extends keyof Target & string>(target: Target, name: Name, replacement: Target[Name]) {
+      const original = target[name]
+      target[name] = replacement
+      ;(target as any)[getSymbol(name)] = original
+      restorers.push(() => {
+        delete (target as any)[getSymbol(name)]
+        target[name] = original
+      })
+    },
+  }
+}

packages/rum-core/src/browser/domMutationObservable.spec.ts

@@ -1,5 +1,5 @@
 import { isIE } from '@datadog/browser-core'
-import { stubZoneJs } from '../../../core/test/specHelper'
+import { stubZoneJs } from '../../../core/test/stubZoneJs'
 import { createDOMMutationObservable, getMutationObserverConstructor } from './domMutationObservable'
 
 // The MutationObserver invokes its callback in an event loop microtask, making this asynchronous.