diff --git a/src/main/java/server/conf/users.json b/src/main/java/server/conf/users.json
index 95e267d..49c1ef5 100644
--- a/src/main/java/server/conf/users.json
+++ b/src/main/java/server/conf/users.json
@@ -6,5 +6,9 @@
   "f": {
     "username": "f",
     "passwordHash": "JS8QyDYQ68oaBZwLroJV66L5W+TR17z6idckioLZ8RE\u003d"
+  },
+  "ciao": {
+    "username": "ciao",
+    "passwordHash": "sTOgwOm+474gFj0q0x1iSNspKqbcse4IeiqlDg/HWuI\u003d"
   }
 }
\ No newline at end of file
diff --git a/src/test/java/service/PasswordHashingServiceTests.java b/src/test/java/client/service/PasswordHashingServiceTests.java
similarity index 95%
rename from src/test/java/service/PasswordHashingServiceTests.java
rename to src/test/java/client/service/PasswordHashingServiceTests.java
index 41f1e0a..e839e44 100644
--- a/src/test/java/service/PasswordHashingServiceTests.java
+++ b/src/test/java/client/service/PasswordHashingServiceTests.java
@@ -1,9 +1,8 @@
-package service;
+package client.service;
 
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import client.service.PasswordHashingService;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
diff --git a/src/test/java/server/CommandTests.java b/src/test/java/server/CommandTests.java
new file mode 100644
index 0000000..69ae151
--- /dev/null
+++ b/src/test/java/server/CommandTests.java
@@ -0,0 +1,30 @@
+package server;
+
+import static org.mockito.Mockito.mock;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import server.model.Command;
+
+/**
+ * Tests for the Command interface.
+ */
+public class CommandTests {
+
+    private final Command command = mock(Command.class);
+
+
+
+    @Test
+    @DisplayName(" can correctly send a response")
+    public void testSendResponse() {
+
+        // TODO
+    }
+
+    @Test
+    @DisplayName(" throws an exception when the response cannot be sent")
+    public void testSendResponseThrowsException() {
+        // TODO
+    }
+}
diff --git a/src/test/java/server/RequestHandlerTests.java b/src/test/java/server/controller/RequestHandlerTests.java
similarity index 79%
rename from src/test/java/server/RequestHandlerTests.java
rename to src/test/java/server/controller/RequestHandlerTests.java
index 79bdfe0..65f04cc 100644
--- a/src/test/java/server/RequestHandlerTests.java
+++ b/src/test/java/server/controller/RequestHandlerTests.java
@@ -1,8 +1,7 @@
-package server;
+package server.controller;
 
 import static org.mockito.Mockito.mock;
 
-import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.net.Socket;
@@ -11,7 +10,6 @@
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mock;
-import server.controller.RequestHandler;
 
 /**
  * RequestHandlerTests is the test suite for RequestHandler.
@@ -47,14 +45,10 @@ public void testHandleUserRequest() {
 
     /**
      * Tears down the test suite.
-     *
-     * @throws IOException if an I/O error occurs when closing resources.
      */
     @AfterEach
-    public void tearDown() throws IOException {
-        in.close();
-        out.close();
-        socket.close();
+    public void tearDown() {
+        // TODO
     }
 
 }
diff --git a/src/test/java/server/TerminationHandlerTests.java b/src/test/java/server/controller/TerminationHandlerTests.java
similarity index 95%
rename from src/test/java/server/TerminationHandlerTests.java
rename to src/test/java/server/controller/TerminationHandlerTests.java
index 4a25c00..8706af9 100644
--- a/src/test/java/server/TerminationHandlerTests.java
+++ b/src/test/java/server/controller/TerminationHandlerTests.java
@@ -1,4 +1,4 @@
-package server;
+package server.controller;
 
 import java.io.IOException;
 import java.net.ServerSocket;
@@ -8,7 +8,6 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
-import server.controller.TerminationHandler;
 
 /**
  * TerminationHandlerTests is the test suite for TerminationHandler.
diff --git a/src/test/java/service/AuthenticationServiceTests.java b/src/test/java/server/service/AuthenticationServiceTests.java
similarity index 98%
rename from src/test/java/service/AuthenticationServiceTests.java
rename to src/test/java/server/service/AuthenticationServiceTests.java
index 561f3ba..0c8b8fb 100644
--- a/src/test/java/service/AuthenticationServiceTests.java
+++ b/src/test/java/server/service/AuthenticationServiceTests.java
@@ -1,4 +1,4 @@
-package service;
+package server.service;
 
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -10,8 +10,6 @@
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
-import server.service.AuthenticationService;
-
 
 /**
  * Tests for the AuthenticationService.
diff --git a/src/test/java/server/service/LoginCommandTests.java b/src/test/java/server/service/LoginCommandTests.java
new file mode 100644
index 0000000..79b995c
--- /dev/null
+++ b/src/test/java/server/service/LoginCommandTests.java
@@ -0,0 +1,87 @@
+package server.service;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.util.Optional;
+import model.User;
+import model.UserRequest;
+import model.enums.Request;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import server.model.Command;
+
+/**
+ * Tests for the LoginCommand.
+ */
+@DisplayName("The LoginCommand tests ")
+public class LoginCommandTests {
+
+    @Mock
+    private static final Command command = mock(Command.class);
+    private static UserRequest userRequest;
+    private static LoginCommand loginCommand;
+    private static ObjectOutputStream out;
+    @Mock
+    private static AuthenticationService authenticationService;
+    private static User user;
+
+    /**
+     * Sets up the test suite.
+     *
+     * @throws IOException if an I/O error occurs when closing resources.
+     */
+    @BeforeAll
+    public static void setUp() throws IOException {
+        authenticationService = mock(AuthenticationService.class);
+        out = new ObjectOutputStream(System.out);
+        loginCommand = new LoginCommand(authenticationService, out);
+        user = new User("testUser", "testPassword");
+        userRequest = new UserRequest(Request.LOGIN, user);
+        when(command.sendResponse(any(), any())).thenReturn(true);
+
+    }
+
+    @Test
+    @DisplayName(" can correctly handle a login command")
+    public void testHandle() {
+        assertTrue(loginCommand.handle(userRequest));
+    }
+
+    @Test
+    @DisplayName(" successfully writes the response when the user is not registered")
+    public void testHandleNotRegisteredUser() {
+        when(authenticationService.getUserByUsername(any())).thenReturn(Optional.empty());
+        assertTrue(loginCommand.handle(userRequest));
+
+    }
+
+    @Test
+    @DisplayName(" successfully writes the response when the user is registered")
+    public void testHandleRegisteredUser() {
+        when(authenticationService.getUserByUsername(any())).thenReturn(Optional.of(user));
+        assertTrue(loginCommand.handle(userRequest));
+
+    }
+
+    @Test
+    @DisplayName(" successfully writes the response "
+            + "when the user is registered but the password is wrong")
+    public void testHandleRegisteredUserWrongPassword() {
+        final User wrongUser = new User("testUser", "wrongPassword");
+        when(authenticationService.getUserByUsername(any())).thenReturn(Optional.of(wrongUser));
+        assertTrue(loginCommand.handle(userRequest));
+
+    }
+
+
+
+
+
+}