diff --git a/src/com/android/settings/security/CredentialManagementAppPreferenceController.java b/src/com/android/settings/security/CredentialManagementAppPreferenceController.java
index 107b8f28b6a..ae257149efe 100644
--- a/src/com/android/settings/security/CredentialManagementAppPreferenceController.java
+++ b/src/com/android/settings/security/CredentialManagementAppPreferenceController.java
@@ -28,6 +28,7 @@ import android.util.Log;
 
 import androidx.preference.Preference;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 
@@ -72,7 +73,8 @@ public class CredentialManagementAppPreferenceController extends BasePreferenceC
         });
     }
 
-    private void displayPreference(Preference preference) {
+    @VisibleForTesting
+    void displayPreference(Preference preference) {
         if (mHasCredentialManagerPackage) {
             preference.setEnabled(true);
             try {
diff --git a/tests/robotests/src/com/android/settings/security/CredentialManagementAppControllerTest.java b/tests/robotests/src/com/android/settings/security/CredentialManagementAppControllerTest.java
index 36f056c109c..eb7165e5e78 100644
--- a/tests/robotests/src/com/android/settings/security/CredentialManagementAppControllerTest.java
+++ b/tests/robotests/src/com/android/settings/security/CredentialManagementAppControllerTest.java
@@ -18,6 +18,8 @@ package com.android.settings.security;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.Mockito.verify;
+
 import android.content.Context;
 
 import androidx.preference.Preference;
@@ -26,27 +28,35 @@ import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 
 @RunWith(RobolectricTestRunner.class)
 public class CredentialManagementAppControllerTest {
 
+    @Mock
+    private Preference mPreference;
+
     private Context mContext;
     private CredentialManagementAppPreferenceController mController;
-    private Preference mPreference;
 
     private static final String PREF_KEY_CREDENTIAL_MANAGEMENT_APP = "certificate_management_app";
 
     @Before
     public void setUp() {
+        MockitoAnnotations.initMocks(this);
         mContext = RuntimeEnvironment.application;
         mController = new CredentialManagementAppPreferenceController(
                 mContext, PREF_KEY_CREDENTIAL_MANAGEMENT_APP);
-        mPreference = new Preference(mContext);
+    }
+
+    @Test
+    public void getAvailable_shouldAlwaysReturnTrue() {
+        assertThat(mController.isAvailable()).isTrue();
     }
 
     @Test
@@ -56,12 +66,10 @@ public class CredentialManagementAppControllerTest {
     }
 
     @Test
-    @Ignore
-    public void updateState_noCredentialManagementApp_shouldDisablePreference() {
-        mController.updateState(mPreference);
+    public void displayPreference_noCredentialManagementApp_shouldDisablePreference() {
+        mController.displayPreference(mPreference);
 
-        assertThat(mPreference.isEnabled()).isEqualTo(false);
-        assertThat(mPreference.getSummary()).isEqualTo(
-                mContext.getText(R.string.no_certificate_management_app));
+        verify(mPreference).setEnabled(false);
+        verify(mPreference).setSummary(R.string.no_certificate_management_app);
     }
 }