diff --git a/packages/authentication/src/__tests__/acceptance/jwt-auth-extension.acceptance.ts b/packages/authentication/src/__tests__/acceptance/jwt-auth-extension.acceptance.ts
index c088845178bc..14230f016411 100644
--- a/packages/authentication/src/__tests__/acceptance/jwt-auth-extension.acceptance.ts
+++ b/packages/authentication/src/__tests__/acceptance/jwt-auth-extension.acceptance.ts
@@ -37,7 +37,7 @@ const SequenceActions = RestBindings.SequenceActions;
 describe('JWT Authentication', () => {
   let app: Application;
   let server: RestServer;
-  let users: UserRepository;
+  let test_users: UserRepository;
 
   beforeEach(givenAServer);
   beforeEach(givenAuthenticatedSequence);
@@ -87,19 +87,19 @@ describe('JWT Authentication', () => {
 
     app.controller(InfoController);
 
-    const token: string = (await whenIMakeRequestTo(server)
+    const the_token: string = (await whenIMakeRequestTo(server)
       .get('/login')
       .expect(200)).text;
 
-    expect(token).to.be.not.Null;
-    expect(token).to.be.String;
+    expect(the_token !== null).to.equal(true);
+    expect(typeof the_token === 'string').to.equal(true);
 
     const email = (await whenIMakeRequestTo(server)
       .get('/whoAmI')
-      .set('access_token', token)
+      .set('access_token', the_token)
       .expect(200)).text;
 
-    expect(email).to.equal(users.list['joe@example.com'].user.email);
+    expect(email).to.equal(test_users.list['joe@example.com'].user.email);
   });
 
   it('returns error due to expired token', async () => {
@@ -363,7 +363,7 @@ describe('JWT Authentication', () => {
       .bind(JWTAuthenticationStrategyBindings.TOKEN_SERVICE)
       .toClass(JWTService);
 
-    users = new UserRepository({
+    test_users = new UserRepository({
       'joe@example.com': {
         user: {
           id: '1',
@@ -402,7 +402,7 @@ describe('JWT Authentication', () => {
       },
     });
 
-    server.bind(USER_REPO).to(users);
+    server.bind(USER_REPO).to(test_users);
   }
 
   function whenIMakeRequestTo(restServer: RestServer): Client {
diff --git a/packages/authentication/src/__tests__/fixtures/services/basic-auth-user-service.ts b/packages/authentication/src/__tests__/fixtures/services/basic-auth-user-service.ts
index 31a10bd3176f..4e2fd6688337 100644
--- a/packages/authentication/src/__tests__/fixtures/services/basic-auth-user-service.ts
+++ b/packages/authentication/src/__tests__/fixtures/services/basic-auth-user-service.ts
@@ -34,7 +34,7 @@ export class BasicAuthenticationUserService
       throw new HttpErrors.Unauthorized(`'credentials.password' is null`);
     } //if
 
-    const foundUser = await this.userRepository.find(
+    const foundUser = this.userRepository.find(
       credentials.email,
       credentials.password,
     );