diff --git a/app/src/test/java/com/techcourse/controller/LoginControllerTest.java b/app/src/test/java/com/techcourse/controller/LoginControllerTest.java
new file mode 100644
index 0000000000..1a6bb79c06
--- /dev/null
+++ b/app/src/test/java/com/techcourse/controller/LoginControllerTest.java
@@ -0,0 +1,63 @@
+package com.techcourse.controller;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import com.techcourse.domain.User;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class LoginControllerTest {
+
+    @Test
+    void 로그인_성공_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        HttpSession session = mock(HttpSession.class);
+        when(request.getParameter("account")).thenReturn("gugu");
+        when(request.getParameter("password")).thenReturn("password");
+        when(request.getSession()).thenReturn(session);
+
+        LoginController loginController = new LoginController();
+        String execute = loginController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/index.jsp");
+    }
+
+    @Test
+    void 로그인_실패_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        HttpSession session = mock(HttpSession.class);
+        when(request.getParameter("account")).thenReturn("power");
+        when(request.getParameter("password")).thenReturn("password");
+        when(request.getSession()).thenReturn(session);
+
+        LoginController loginController = new LoginController();
+        String execute = loginController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/401.jsp");
+    }
+
+    @Test
+    void 세션_존재_할때_로그인_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        final var session = mock(HttpSession.class);
+
+        when(session.getAttribute("user")).thenReturn(new User("power","power","power@naver.com"));
+        when(request.getSession()).thenReturn(session);
+
+        LoginController loginController = new LoginController();
+        String execute = loginController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/index.jsp");
+    }
+}
diff --git a/app/src/test/java/com/techcourse/controller/LoginViewControllerTest.java b/app/src/test/java/com/techcourse/controller/LoginViewControllerTest.java
new file mode 100644
index 0000000000..61b8edd832
--- /dev/null
+++ b/app/src/test/java/com/techcourse/controller/LoginViewControllerTest.java
@@ -0,0 +1,47 @@
+package com.techcourse.controller;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import com.techcourse.domain.User;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class LoginViewControllerTest {
+
+    @Test
+    void 세션_존재_할때_로그인_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        final var session = mock(HttpSession.class);
+
+        when(session.getAttribute("user")).thenReturn(new User("power","power","power@naver.com"));
+        when(request.getSession()).thenReturn(session);
+
+        LoginViewController loginViewController = new LoginViewController();
+        String execute = loginViewController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/index.jsp");
+    }
+
+    @Test
+    void 세션_존재_하지_않을때_로그인_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        final var session = mock(HttpSession.class);
+
+        when(request.getSession()).thenReturn(session);
+
+        LoginViewController loginViewController = new LoginViewController();
+        String execute = loginViewController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("/login.jsp");
+    }
+}
diff --git a/app/src/test/java/com/techcourse/controller/LogoutControllerTest.java b/app/src/test/java/com/techcourse/controller/LogoutControllerTest.java
new file mode 100644
index 0000000000..643d427500
--- /dev/null
+++ b/app/src/test/java/com/techcourse/controller/LogoutControllerTest.java
@@ -0,0 +1,32 @@
+package com.techcourse.controller;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class LogoutControllerTest {
+
+
+    @Test
+    void 로그인_아웃_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        final var session = mock(HttpSession.class);
+
+        when(request.getSession()).thenReturn(session);
+
+        LogoutController logoutController = new LogoutController();
+        String execute = logoutController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/");
+    }
+}
diff --git a/app/src/test/java/com/techcourse/controller/RegisterControllerTest.java b/app/src/test/java/com/techcourse/controller/RegisterControllerTest.java
new file mode 100644
index 0000000000..b331f30778
--- /dev/null
+++ b/app/src/test/java/com/techcourse/controller/RegisterControllerTest.java
@@ -0,0 +1,38 @@
+package com.techcourse.controller;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import com.techcourse.domain.User;
+import com.techcourse.repository.InMemoryUserRepository;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class RegisterControllerTest {
+
+    @Test
+    void 회원가입_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        HttpSession session = mock(HttpSession.class);
+
+        when(request.getParameter("account")).thenReturn("power");
+        when(request.getParameter("password")).thenReturn("password");
+        when(request.getParameter("email")).thenReturn("power@naver.com");
+        when(request.getSession()).thenReturn(session);
+
+        RegisterController registerController = new RegisterController();
+        String execute = registerController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("redirect:/index.jsp");
+        User user = InMemoryUserRepository.findByAccount("power").get();
+        Assertions.assertThat(user.checkPassword("password")).isTrue();
+    }
+}
diff --git a/app/src/test/java/com/techcourse/controller/RegisterViewControllerTest.java b/app/src/test/java/com/techcourse/controller/RegisterViewControllerTest.java
new file mode 100644
index 0000000000..9c94784039
--- /dev/null
+++ b/app/src/test/java/com/techcourse/controller/RegisterViewControllerTest.java
@@ -0,0 +1,30 @@
+package com.techcourse.controller;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class RegisterViewControllerTest {
+
+    @Test
+    void 회원가입_페이지_출력_테스트() throws Exception {
+        final var request = mock(HttpServletRequest.class);
+        final var response = mock(HttpServletResponse.class);
+        HttpSession session = mock(HttpSession.class);
+        when(request.getSession()).thenReturn(session);
+
+        RegisterViewController registerViewController = new RegisterViewController();
+        String execute = registerViewController.execute(request, response);
+
+        Assertions.assertThat(execute).isEqualTo("/register.jsp");
+    }
+}
diff --git a/app/src/test/java/com/techcourse/repository/InMemoryUserRepositoryTest.java b/app/src/test/java/com/techcourse/repository/InMemoryUserRepositoryTest.java
new file mode 100644
index 0000000000..bc9c0cd3eb
--- /dev/null
+++ b/app/src/test/java/com/techcourse/repository/InMemoryUserRepositoryTest.java
@@ -0,0 +1,22 @@
+package com.techcourse.repository;
+
+import com.techcourse.domain.User;
+import java.util.Optional;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class InMemoryUserRepositoryTest {
+
+    @Test
+    void 유저_저장_테스트() {
+        User user = new User("power", "password", "power@naver.com");
+        InMemoryUserRepository.save(user);
+
+        Optional<User> power = InMemoryUserRepository.findByAccount("power");
+        Assertions.assertThat(power.get().getId()).isEqualTo(2L);
+    }
+}