feat: add snjs package

packages/snjs/mocha/lib/Utils.js

@@ -0,0 +1,34 @@
+import FakeWebCrypto from './fake_web_crypto.js'
+
+export async function safeDeinit(application) {
+  if (application.dealloced) {
+    console.warn(
+      'Attempting to deinit already deinited application. Check the test case to find where you are double deiniting.',
+    )
+    return
+  }
+
+  await application.diskStorageService.awaitPersist()
+
+  /** Limit waiting to 1s */
+  await Promise.race([sleep(1), application.syncService?.awaitCurrentSyncs()])
+
+  await application.prepareForDeinit()
+
+  application.deinit(DeinitMode.Soft, DeinitSource.SignOut)
+}
+
+export async function sleep(seconds) {
+  console.warn(`Test sleeping for ${seconds}s`)
+
+  return new Promise((resolve, reject) => {
+    setTimeout(function () {
+      resolve()
+    }, seconds * 1000)
+  })
+}
+
+export function generateUuid() {
+  const crypto = new FakeWebCrypto()
+  return crypto.generateUUID()
+}