diff --git a/README.md b/README.md
index a9ad48cd6..be599798e 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ This library supports the following tooling versions:
 
 ### Installation
 
-Using [npm](https://npmjs.org) in your project directory run the following command:
+Using [npm](https://npmjs.org) in your project directory, run the following command:
 
 ```bash
 npm install auth0
diff --git a/test/auth/id-token-validator.test.ts b/test/auth/id-token-validator.test.ts
index 2f0a32a81..b0cc73b73 100644
--- a/test/auth/id-token-validator.test.ts
+++ b/test/auth/id-token-validator.test.ts
@@ -442,4 +442,15 @@ describe('id-token-validator', () => {
       idTokenValidator.validate(jwt, { organization: 'testOrg' })
     ).resolves.not.toThrow();
   });
+  it('creates an instance of IdTokenValidator', async () => {
+    const idTokenValidator = new IDTokenValidator({
+      domain: DOMAIN,
+      clientId: CLIENT_ID,
+      clientSecret: CLIENT_SECRET,
+      agent: {} as any, // Stub for the agent parameter,
+      headers: {} as any, // Stub for the headers parameter,
+      timeoutDuration: 5000,
+    });
+    expect(idTokenValidator).toBeInstanceOf(IDTokenValidator);
+  });
 });
diff --git a/test/lib/runtime.test.ts b/test/lib/runtime.test.ts
index 495647212..0977d8517 100644
--- a/test/lib/runtime.test.ts
+++ b/test/lib/runtime.test.ts
@@ -837,3 +837,11 @@ describe('Runtime for UserInfoClient', () => {
     expect(request.isDone()).toBe(true);
   });
 });
+
+describe('test baseAPI', () => {
+  // following error is thrown: throw new Error('The provided base URL is invalid');
+  // add expect statement for this error below
+  expect(
+    () => new BaseAPI({ baseUrl: {} as any, parseError: () => Promise.resolve(new Error('tmp')) })
+  ).toThrowError('The provided base URL is invalid');
+});