diff --git a/packages/credential-provider-cognito-identity/src/localStorage-inmemoryStorage.spec.ts b/packages/credential-provider-cognito-identity/src/localStorage-inmemoryStorage.spec.ts
new file mode 100644
index 000000000000..aa74ea4847d6
--- /dev/null
+++ b/packages/credential-provider-cognito-identity/src/localStorage-inmemoryStorage.spec.ts
@@ -0,0 +1,13 @@
+/**
+ * @jest-environment node
+ */
+
+import { localStorage } from "./localStorage";
+import { InMemoryStorage } from "./InMemoryStorage";
+
+describe("localStorage", () => {
+  //use node run time in jest(default jsdom)
+  it("should return an in-memory storage implementation when indexDB or localStorage is not available", () => {
+    expect(localStorage()).toBeInstanceOf(InMemoryStorage);
+  });
+});
diff --git a/packages/credential-provider-cognito-identity/src/localStorage.spec.ts b/packages/credential-provider-cognito-identity/src/localStorage.spec.ts
index 895287990293..caabc5a23f40 100644
--- a/packages/credential-provider-cognito-identity/src/localStorage.spec.ts
+++ b/packages/credential-provider-cognito-identity/src/localStorage.spec.ts
@@ -1,6 +1,5 @@
 import { localStorage } from "./localStorage";
 import { IndexedDbStorage } from "./IndexedDbStorage";
-import { InMemoryStorage } from "./InMemoryStorage";
 
 describe("localStorage", () => {
   const storageAtInit: Storage | undefined = window && window.localStorage;
@@ -47,8 +46,4 @@ describe("localStorage", () => {
 
     expect(localStorage()).toBe(window.localStorage);
   });
-
-  /*it("should return an in-memory storage implementation otherwise", () => {
-    expect(localStorage()).toBeInstanceOf(InMemoryStorage);
-  });*/
 });
diff --git a/packages/credential-provider-cognito-identity/tsconfig.test.json b/packages/credential-provider-cognito-identity/tsconfig.test.json
index 57f7d5b14080..5fbd8c8df2da 100644
--- a/packages/credential-provider-cognito-identity/tsconfig.test.json
+++ b/packages/credential-provider-cognito-identity/tsconfig.test.json
@@ -1,9 +1,11 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
+    "strict": false,
     "sourceMap": false,
     "inlineSourceMap": true,
     "inlineSources": true,
+    "noImplicitUseStrict": true,
     "rootDir": "./src",
     "outDir": "./build"
   }