diff --git a/RuoYi-Vue/ruoyi-admin/src/test/java/com/ruoyi/web/service/front/FrontAuthServiceTest.java b/RuoYi-Vue/ruoyi-admin/src/test/java/com/ruoyi/web/service/front/FrontAuthServiceTest.java
index bc1aa57..933122f 100644
--- a/RuoYi-Vue/ruoyi-admin/src/test/java/com/ruoyi/web/service/front/FrontAuthServiceTest.java
+++ b/RuoYi-Vue/ruoyi-admin/src/test/java/com/ruoyi/web/service/front/FrontAuthServiceTest.java
@@ -7,6 +7,7 @@ import com.ruoyi.common.utils.SecurityUtils;
 import com.ruoyi.framework.web.service.TokenService;
 import com.ruoyi.generator.domain.front.FrontUser;
 import com.ruoyi.generator.service.front.IFrontUserService;
+import com.ruoyi.web.controller.front.FrontAuthController;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -29,6 +30,8 @@ public class FrontAuthServiceTest
 {
     private FrontAuthService frontAuthService;
 
+    private FrontAuthController frontAuthController;
+
     @Mock
     private IFrontUserService frontUserService;
 
@@ -39,8 +42,10 @@ public class FrontAuthServiceTest
     public void setUp() throws Exception
     {
         frontAuthService = new FrontAuthService();
-        setField("frontUserService", frontUserService);
-        setField("tokenService", tokenService);
+        frontAuthController = new FrontAuthController();
+        setField(frontAuthService, "frontUserService", frontUserService);
+        setField(frontAuthService, "tokenService", tokenService);
+        setField(frontAuthController, "frontAuthService", frontAuthService);
     }
 
     @Test
@@ -85,6 +90,42 @@ public class FrontAuthServiceTest
         verify(frontUserService, never()).updateLastLoginTime(anyLong());
     }
 
+    @Test
+    public void loginRejectsNullBodyWithCredentialFailure()
+    {
+        try
+        {
+            frontAuthController.login(null);
+            fail("Expected ServiceException");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals("用户名或密码错误", e.getMessage());
+        }
+
+        verify(frontUserService, never()).selectByUsername(any());
+        verify(tokenService, never()).createToken(any(LoginUser.class));
+        verify(frontUserService, never()).updateLastLoginTime(anyLong());
+    }
+
+    @Test
+    public void loginRejectsNullUsernameWithCredentialFailure()
+    {
+        try
+        {
+            frontAuthService.login(null, "admin123");
+            fail("Expected ServiceException");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals("用户名或密码错误", e.getMessage());
+        }
+
+        verify(frontUserService, never()).selectByUsername(any());
+        verify(tokenService, never()).createToken(any(LoginUser.class));
+        verify(frontUserService, never()).updateLastLoginTime(anyLong());
+    }
+
     @Test
     public void loginRejectsBadPasswordBeforeAccountStatus()
     {
@@ -112,6 +153,33 @@ public class FrontAuthServiceTest
         verify(frontUserService, never()).updateLastLoginTime(anyLong());
     }
 
+    @Test
+    public void loginRejectsBadPasswordBeforeDeletedStatus()
+    {
+        FrontUser user = new FrontUser();
+        user.setUserId(100L);
+        user.setUsername("demo");
+        user.setNickname("Demo");
+        user.setPassword(SecurityUtils.encryptPassword("admin123"));
+        user.setStatus("0");
+        user.setDelFlag("2");
+
+        when(frontUserService.selectByUsername("demo")).thenReturn(user);
+
+        try
+        {
+            frontAuthService.login("demo", "wrong");
+            fail("Expected ServiceException");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals("用户名或密码错误", e.getMessage());
+        }
+
+        verify(tokenService, never()).createToken(any(LoginUser.class));
+        verify(frontUserService, never()).updateLastLoginTime(anyLong());
+    }
+
     @Test
     public void profileClearsPasswordBeforeReturning()
     {
@@ -128,10 +196,10 @@ public class FrontAuthServiceTest
         assertNull(profile.getPassword());
     }
 
-    private void setField(String name, Object value) throws Exception
+    private void setField(Object target, String name, Object value) throws Exception
     {
-        Field field = FrontAuthService.class.getDeclaredField(name);
+        Field field = target.getClass().getDeclaredField(name);
         field.setAccessible(true);
-        field.set(frontAuthService, value);
+        field.set(target, value);
     }
 }