diff --git a/src/test/java/hs/fulda/de/ci/exam/project/AccountServiceTest.java b/src/test/java/hs/fulda/de/ci/exam/project/AccountServiceTest.java
index b1c1681..90d1d69 100644
--- a/src/test/java/hs/fulda/de/ci/exam/project/AccountServiceTest.java
+++ b/src/test/java/hs/fulda/de/ci/exam/project/AccountServiceTest.java
@@ -59,6 +59,15 @@ public class AccountServiceTest {
         inOrder.verify(passwordEncoder, never()).encode(anyString());
     }
 
+    @Test
+    public void shouldBeInvalidForDisabledUser(){
+        boolean accountIsValid =
+                accountService.isValidAccount(DISABLED_USER.getId(), PASSWORD);
+        assertFalse(accountIsValid);
+
+        verify(accountRepository).findById(DISABLED_USER.getId());
+        verify(passwordEncoder, never()).encode(anyString());
+    }
     private AccountRepository createAccountRepository() {
         AccountRepository mock = mock(AccountRepository.class);
         when(mock.findById(ENABLED_USER.getId())).thenReturn(ENABLED_USER);