diff --git a/backend/src/test/auth/login.spec.ts b/backend/src/test/auth/login.spec.ts
index af3d6e2..cd73f59 100644
--- a/backend/src/test/auth/login.spec.ts
+++ b/backend/src/test/auth/login.spec.ts
@@ -7,6 +7,7 @@ import * as supertest from 'supertest';
 import { User } from '../../user/models/user.entity';
 import { UserFixture } from '../fixture/user.fixture';
 import { HttpStatus } from '@nestjs/common';
+import { validateDtoKeys } from '../utils';
 
 describe('login test', () => {
   let testServer: NestExpressApplication;
@@ -69,6 +70,16 @@ describe('login test', () => {
     expect(user.password).not.toEqual('world');
   });
 
-  it.todo('access token 과 refresh token을 주저야 한다.');
-  it.todo('Response body 형식 체크');
+  it('Response body 형식 체크', async () => {
+    const { body } = await supertest(testServer.getHttpServer())
+      .post('/auth/login')
+      .send({
+        username: 'hello',
+        password: 'world',
+      })
+      .expect(HttpStatus.CREATED);
+
+    validateDtoKeys(body, ['accessToken', 'refreshToken']);
+    expect(body.accessToken).not.toEqual(body.refreshToken);
+  });
 });
diff --git a/backend/src/test/utils.ts b/backend/src/test/utils.ts
new file mode 100644
index 0000000..362d7e7
--- /dev/null
+++ b/backend/src/test/utils.ts
@@ -0,0 +1,6 @@
+export function validateDtoKeys(dto: any, keys: string[]) {
+  const dtoKeys = Object.keys(dto);
+  for (const key of keys) {
+    expect(dtoKeys).toContain(key);
+  }
+}