Use shared sleep funtion

packages/snaps-controllers/src/services/offscreen/OffscreenPostMessageStream.test.ts

@@ -1,6 +1,5 @@
-import { MockPostMessageStream } from '@metamask/snaps-utils/test-utils';
+import { MockPostMessageStream, sleep } from '@metamask/snaps-utils/test-utils';
 
-import { sleep } from '../../test-utils';
 import { OffscreenPostMessageStream } from './OffscreenPostMessageStream';
 
 const MOCK_JOB_ID = 'job-id';

packages/snaps-execution-environments/src/common/BaseSnapExecutor.test.browser.ts

@@ -5,6 +5,7 @@ import {
   MOCK_ORIGIN,
   MOCK_SNAP_ID,
   spy,
+  sleep,
 } from '@metamask/snaps-utils/test-utils';
 import { assertIsJsonRpcSuccess, isPlainObject } from '@metamask/utils';
 
@@ -17,9 +18,6 @@ import { testEndowmentHardening } from './test-utils/hardening';
 
 import 'ses';
 
-const sleep = async (ms: number) =>
-  new Promise((resolve) => setTimeout(resolve, ms));
-
 describe('BaseSnapExecutor', () => {
   before(() => {
     // @ts-expect-error - `globalThis.process` is not optional.

packages/snaps-utils/src/test-utils/index.ts

@@ -7,6 +7,7 @@
 export * from './common';
 export * from './manifest';
 export * from './server';
+export * from './sleep';
 export * from './snap';
 export * from './spy';
 export * from './stream';

packages/snaps-utils/src/test-utils/sleep.ts

@@ -0,0 +1,9 @@
+/**
+ * Get a promise that resolves after a given number of milliseconds.
+ *
+ * @param ms - The number of milliseconds to sleep.
+ * @returns A promise that resolves after the given number of milliseconds.
+ */
+export async function sleep(ms: number): Promise<void> {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}