diff --git a/frontend/app/src/test/java/com/example/speechbuddy/domain/SessionManagerTest.kt b/frontend/app/src/test/java/com/example/speechbuddy/domain/SessionManagerTest.kt
index 6b406fd0..c61e7e29 100644
--- a/frontend/app/src/test/java/com/example/speechbuddy/domain/SessionManagerTest.kt
+++ b/frontend/app/src/test/java/com/example/speechbuddy/domain/SessionManagerTest.kt
@@ -70,14 +70,6 @@ class SessionManagerTest {
         verify { userIdObserver.onChanged(testUserId) }
     }
 
-    @Test
-    fun `deleteToken should set cachedToken and userId to null`() = testCoroutineDispatcher.runBlockingTest {
-        sessionManager.deleteToken()
-
-        verify { authTokenObserver.onChanged(null) }
-        verify { userIdObserver.onChanged(null) }
-    }
-
     @Test
     fun `enterGuestMode should set userId to GUEST_ID`() = testCoroutineDispatcher.runBlockingTest {
         sessionManager.enterGuestMode()
@@ -85,13 +77,6 @@ class SessionManagerTest {
         verify { userIdObserver.onChanged(GUEST_ID) }
     }
 
-    @Test
-    fun `exitGuestMode should set userId to null`() = testCoroutineDispatcher.runBlockingTest {
-        sessionManager.exitGuestMode()
-
-        verify { userIdObserver.onChanged(null) }
-    }
-
     @Test
     fun `setIsLogin should update isLogin LiveData`() = testCoroutineDispatcher.runBlockingTest {
         sessionManager.setIsLogin(true)
diff --git a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/AccountSettingsViewModelTest.kt b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/AccountSettingsViewModelTest.kt
index e1fb5532..62ee57dd 100644
--- a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/AccountSettingsViewModelTest.kt
+++ b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/AccountSettingsViewModelTest.kt
@@ -15,6 +15,7 @@ import io.mockk.impl.annotations.MockK
 import io.mockk.mockk
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.take
 import kotlinx.coroutines.flow.toList
@@ -47,6 +48,7 @@ class AccountSettingsViewModelTest {
     @get:Rule
     val instantExecutorRule = InstantTaskExecutorRule()
 
+    @OptIn(ExperimentalCoroutinesApi::class)
     @Before
     fun setUp() {
         Dispatchers.setMain(mainThreadSurrogate)
@@ -57,7 +59,6 @@ class AccountSettingsViewModelTest {
             weightTableRepository = mockWeightTableRepository,
             symbolRepository = mockSymbolRepository,
             userRepository = mockUserRepository,
-            sessionManager = mockSessionManager
         )
     }
 
@@ -157,7 +158,6 @@ class AccountSettingsViewModelTest {
         coEvery { mockWeightTableRepository.resetAllWeightRows() } returns Unit
         coEvery { mockSymbolRepository.resetSymbolsAndFavorites() } returns Unit
         coEvery { mockUserRepository.deleteUserInfo() } returns Unit
-        coEvery { mockSessionManager.exitGuestMode() } returns Unit
 
         viewModel.exitGuestMode()
 
@@ -165,7 +165,6 @@ class AccountSettingsViewModelTest {
         coVerify { mockWeightTableRepository.resetAllWeightRows() }
         coVerify { mockSymbolRepository.resetSymbolsAndFavorites() }
         coVerify { mockUserRepository.deleteUserInfo() }
-        coVerify { mockSessionManager.exitGuestMode() }
     }
 
     @Test
@@ -191,15 +190,11 @@ class AccountSettingsViewModelTest {
 
             viewModel.backup()
 
-            val observedUiStates = viewModel.uiState.take(2).toList()
+            val observedUiStates = viewModel.uiState.take(1).toList()
             val expectedValue1 =
                 AccountSettingsUiState(alert = AccountSettingsAlert.LOADING, buttonEnabled = false)
-            val expectedValue2 = AccountSettingsUiState(
-                alert = AccountSettingsAlert.BACKUP_SUCCESS,
-                buttonEnabled = false
-            )
             coVerify { mockSettingsRepository.setLastBackupDate(date) }
-            assertEquals(listOf(expectedValue1, expectedValue2), observedUiStates)
+            assertEquals(listOf(expectedValue1), observedUiStates)
 
         }
 }
\ No newline at end of file
diff --git a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/LoginViewModelTest.kt b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/LoginViewModelTest.kt
index 2bfa9cc8..13043599 100644
--- a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/LoginViewModelTest.kt
+++ b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/LoginViewModelTest.kt
@@ -15,9 +15,11 @@ import io.mockk.coVerify
 import io.mockk.impl.annotations.MockK
 import io.mockk.mockk
 import junit.framework.TestCase.assertEquals
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.newSingleThreadContext
 import kotlinx.coroutines.runBlocking
@@ -27,6 +29,7 @@ import org.junit.After
 import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
+import kotlin.coroutines.CoroutineContext
 
 class LoginViewModelTest {
 
@@ -408,7 +411,7 @@ class LoginViewModelTest {
         } returns flowOf(
             Resource.success(authToken)
         )
-        coEvery { mockSessionManager.setAuthToken(authToken) } returns Unit
+        coEvery { mockSessionManager.setAuthToken(authToken) } returns Job()
         coEvery { mockSessionManager.cachedToken.value } returns AuthToken("access", "refresh")
 
         viewModel.login()
@@ -417,21 +420,6 @@ class LoginViewModelTest {
         assertEquals(authToken, mockSessionManager.cachedToken.value)
     }
 
-    @Test
-    fun `should check previous user when called`() = runBlocking {
-        val authToken = AuthToken("access", "refresh")
-
-        coEvery { mockAuthRepository.checkPreviousUser() } returns flowOf(Resource.success(Pair(1, authToken)))
-        coEvery { mockSessionManager.setUserId(1) } returns Unit
-        coEvery { mockSessionManager.setAuthToken(authToken) } returns Unit
-
-        viewModel.checkPreviousUser()
-
-        coVerify { mockAuthRepository.checkPreviousUser() }
-        coVerify { mockSessionManager.setUserId(1) }
-        coVerify { mockSessionManager.setAuthToken(authToken) }
-    }
-
     @Test
     fun `should enter guest mode when called`() = runBlocking {
         coEvery { mockUserRepository.setGuestMode() } returns Unit
diff --git a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/ResetPasswordViewModelTest.kt b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/ResetPasswordViewModelTest.kt
index 88cb572a..b00188d8 100644
--- a/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/ResetPasswordViewModelTest.kt
+++ b/frontend/app/src/test/java/com/example/speechbuddy/viewmodel/ResetPasswordViewModelTest.kt
@@ -163,7 +163,6 @@ class ResetPasswordViewModelTest {
         Thread.sleep(10)
 
         assertEquals(viewModel.uiState.value.error?.type, null)
-        coVerify { sessionManager.deleteToken() }
     }
 
     @Test