diff --git a/src/test/java/com/photobook/service/impl/UserServiceImplTest.java b/src/test/java/com/photobook/service/impl/UserServiceImplTest.java
index 89c0e50..4d045f7 100644
--- a/src/test/java/com/photobook/service/impl/UserServiceImplTest.java
+++ b/src/test/java/com/photobook/service/impl/UserServiceImplTest.java
@@ -8,6 +8,8 @@
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.security.authentication.BadCredentialsException;
+import org.springframework.security.authentication.InternalAuthenticationServiceException;
 import org.springframework.security.crypto.password.PasswordEncoder;
 
 import java.time.LocalDate;
@@ -32,7 +34,7 @@ public UserDto userInfo() {
         UserDto userInfo = new UserDto();
         userInfo.setUserId(1);
         userInfo.setId("admin");
-        userInfo.setPassword("1234");
+        userInfo.setPassword(passwordEncoder.encode("1234"));
         userInfo.setName("관리자");
         userInfo.setEmail("admin@gmail.com");
         userInfo.setBirth(LocalDate.of(1993, 10, 28));
@@ -43,31 +45,48 @@ public UserDto userInfo() {
         return userInfo;
     }
 
-//    @Test
-//    @DisplayName("사용자 정보가 존재하면 성공")
-//    public void successGetUserInfoByIdAndPassword() {
-//        //given
-//        UserDto userInfo = userInfo();
-//        when(userMapper.getUserInfoByIdAndPassword("admin", "1234")).thenReturn(userInfo);
-//
-//        //when
-//        UserDto result = userServiceImpl.getUserInfoByIdAndPassword("admin", "1234");
-//
-//        //then
-//        assertEquals(result, userInfo);
-//    }
-//
-//    @Test
-//    @DisplayName("사용자 정보가 존재하지 않으면 성공")
-//    public void failureGetUserInfoByIdAndPassword() {
-//        //given
-//        when(userMapper.getUserInfoByIdAndPassword("notExistId", "notExistPassword")).thenReturn(null);
-//
-//        //then
-//        assertThrows(IllegalArgumentException.class, () -> {
-//            //when
-//            userServiceImpl.getUserInfoByIdAndPassword("notExistId", "notExistPassword");
-//        });
-//
-//    }
+    @Test
+    @DisplayName("로그인 검증 성공")
+    public void successValidateLogin() {
+        //given
+        UserDto userInfo = userInfo();
+        when(userMapper.getUserInfoById("admin")).thenReturn(userInfo);
+        when(passwordEncoder.matches("1234", userInfo.getPassword())).thenReturn(true);
+
+        //when
+        UserDto result = userServiceImpl.validateLogin("admin", "1234");
+
+        //then
+        assertEquals(result, userInfo);
+    }
+
+    @Test
+    @DisplayName("로그인 검증 실패_존재하지 않는 아이디")
+    public void failureValidateLoginId() {
+        //given
+        when(userMapper.getUserInfoById("admin")).thenReturn(null);
+
+        //then
+        assertThrows(InternalAuthenticationServiceException.class, () -> {
+            //when
+            userServiceImpl.validateLogin("admin", "1234");
+        });
+
+    }
+
+    @Test
+    @DisplayName("로그인 검증 실패_비밀번호 불일치")
+    public void failureValidateLoginPwd() {
+        //given
+        UserDto userInfo = userInfo();
+        when(userMapper.getUserInfoById("admin")).thenReturn(userInfo);
+        when(passwordEncoder.matches("1234", userInfo.getPassword())).thenReturn(false);
+
+        //then
+        assertThrows(BadCredentialsException.class, () -> {
+            //when
+            userServiceImpl.validateLogin("admin", "1234");
+        });
+    }
+
 }
\ No newline at end of file
diff --git a/src/test/java/com/photobook/utils/PasswordEncoderTest.java b/src/test/java/com/photobook/utils/PasswordEncoderTest.java
index 698c761..267966d 100644
--- a/src/test/java/com/photobook/utils/PasswordEncoderTest.java
+++ b/src/test/java/com/photobook/utils/PasswordEncoderTest.java
@@ -22,6 +22,7 @@ void passwordEncode() {
 
         //when
         String encodedPwd = passwordEncoder.encode(rawPwd);
+        System.out.println(encodedPwd);
 
         //then
         assertAll(