diff --git a/README.md b/README.md
index 920c104..b5dcdae 100644
--- a/README.md
+++ b/README.md
@@ -5,20 +5,16 @@ This template provides a minimal setup to get React working in Vite with HMR and
 ## Setup Guide
 
 This project was set up with NodeJS v20.11.0 LTS with yarn.
-
-1. Change directory to
-    ```shell
-    cd atlas-3-frontend
-    ```
-2. Install packages
+1. Install packages
     ```shell
     yarn
     ```
-3. Create a file `.env.development.local` in root folder with the following information
+2. Create a file `.env.development.local` in root folder with the following information
    ```text
    VITE_IGNORE_MSW=false
    ```
    If you would like to ignore mock service worker, set it to `true`.
+3. Create another file `.env.test.local` in root folder with same content as above
 4. Run the development server
     ```shell
     yarn dev
diff --git a/src/api/authentication.ts b/src/api/authentication.ts
index ceaa294..9ebe34f 100644
--- a/src/api/authentication.ts
+++ b/src/api/authentication.ts
@@ -1,10 +1,10 @@
-import resolveURL, { apiURL } from "./fetch";
+import resolveURL from "./fetch";
 
-const BASE_URL = resolveURL(apiURL);
-const LOGIN_URL = `${BASE_URL}/auth/login`;
-const LOGOUT_URL = `${BASE_URL}/auth/logout`;
+const LOGIN_URL = resolveURL('/auth/login');
+const LOGOUT_URL = resolveURL('/auth/logout');
+const GET_CSRF_URL = resolveURL('/auth/csrf');
 
-export const signIn = async (username: string, password: string): Promise<any> => {
+export const signIn = async (username: string, password: string) => {
   const response = await fetch(LOGIN_URL, {
     method: 'POST',
     headers: {
@@ -45,7 +45,7 @@ export const signOut = async (): Promise<Response> => {
 };
 
 export const getCSRF = async (): Promise<Response> => {
-  const response = await fetch(BASE_URL, {
+  const response = await fetch(GET_CSRF_URL, {
     method: "POST",
     credentials: "include",
     headers: {
diff --git a/src/api/fetch.ts b/src/api/fetch.ts
index 084600e..250dd63 100644
--- a/src/api/fetch.ts
+++ b/src/api/fetch.ts
@@ -1,3 +1,4 @@
+
 const setApiURL = () => {
   if (import.meta.env.DEV) {
     return import.meta.env.VITE_IGNORE_MSW.toLowerCase() === "true" ? "http://localhost:8000" : "http://localhost:5173"
diff --git a/tests/authentication/auth.test.tsx b/tests/authentication/auth.test.tsx
index 7bb4628..14037ec 100644
--- a/tests/authentication/auth.test.tsx
+++ b/tests/authentication/auth.test.tsx
@@ -6,9 +6,8 @@ describe("authentication helper functions", () => {
 
   test("should get csrf token", async () => {
     const response: Response = await getCSRF()
-    expect(response.headers).toBe({
-      'Set-Cookie': mockCSRFToken
-    })
+    expect(response.headers.has('Set-Cookie'))
+    expect(response.headers.get('Set-Cookie')).toBe(mockCSRFToken)
   })
 
   test("should be able to sign in", async () => {