diff --git a/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.java b/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.java
deleted file mode 100644
index a2320341c62..00000000000
--- a/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.settings.sim;
-
-import static android.os.UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.os.UserManager;
-
-import androidx.test.annotation.UiThreadTest;
-import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.Spy;
-import org.mockito.junit.MockitoJUnit;
-import org.mockito.junit.MockitoRule;
-
-@RunWith(AndroidJUnit4.class)
-@UiThreadTest
-public class SimDialogActivityTest {
-    @Rule
-    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
-    @Spy
-    private final Context mContext = ApplicationProvider.getApplicationContext();
-    @Mock
-    private UserManager mUserManager;
-
-    private MockSimDialogActivity mActivity;
-
-    @Before
-    public void setUp() {
-        when(mContext.getSystemService(UserManager.class)).thenReturn(mUserManager);
-        when(mUserManager.isGuestUser()).thenReturn(false);
-        when(mUserManager.hasUserRestriction(DISALLOW_CONFIG_MOBILE_NETWORKS)).thenReturn(false);
-
-        mActivity = new MockSimDialogActivity();
-    }
-
-    @Test
-    public void isUiRestricted_normally_returnFalse() {
-        assertThat(mActivity.isUiRestricted()).isFalse();
-    }
-
-    @Test
-    public void isUiRestricted_isGuestUser_returnTrue() {
-        when(mUserManager.isGuestUser()).thenReturn(true);
-
-        assertThat(mActivity.isUiRestricted()).isTrue();
-    }
-
-    @Test
-    public void isUiRestricted_hasUserRestriction_returnTrue() {
-        when(mUserManager.hasUserRestriction(DISALLOW_CONFIG_MOBILE_NETWORKS)).thenReturn(true);
-
-        assertThat(mActivity.isUiRestricted()).isTrue();
-    }
-
-    public class MockSimDialogActivity extends SimDialogActivity {
-        @Override
-        public Context getApplicationContext() {
-            return mContext;
-        }
-    }
-}
diff --git a/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.kt b/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.kt
new file mode 100644
index 00000000000..9546d69c5bc
--- /dev/null
+++ b/tests/unit/src/com/android/settings/sim/SimDialogActivityTest.kt
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.sim
+
+import android.content.Context
+import android.os.UserManager
+import androidx.test.annotation.UiThreadTest
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settingslib.spaprivileged.framework.common.userManager
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.Spy
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoRule
+import org.mockito.Mockito.`when` as whenever
+
+@RunWith(AndroidJUnit4::class)
+@UiThreadTest
+class SimDialogActivityTest {
+    @get:Rule
+    val mockito: MockitoRule = MockitoJUnit.rule()
+
+    @Spy
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    @Mock
+    private lateinit var userManager: UserManager
+
+    private var activity = MockSimDialogActivity()
+
+    @Before
+    fun setUp() {
+        whenever(context.userManager).thenReturn(userManager)
+        whenever(userManager.isGuestUser).thenReturn(false)
+        whenever(userManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS))
+            .thenReturn(false)
+    }
+
+    @Test
+    fun isUiRestricted_normally_returnFalse() {
+        assertThat(activity.isUiRestricted).isFalse()
+    }
+
+    @Test
+    fun isUiRestricted_isGuestUser_returnTrue() {
+        whenever(userManager.isGuestUser).thenReturn(true)
+
+        assertThat(activity.isUiRestricted).isTrue()
+    }
+
+    @Test
+    fun isUiRestricted_hasUserRestriction_returnTrue() {
+        whenever(userManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS))
+            .thenReturn(true)
+
+        assertThat(activity.isUiRestricted).isTrue()
+    }
+
+    inner class MockSimDialogActivity : SimDialogActivity() {
+        override fun getApplicationContext() = context
+    }
+}