diff --git a/nearby/tests/Android.bp b/nearby/tests/Android.bp
index 67a3b83..76b3683 100644
--- a/nearby/tests/Android.bp
+++ b/nearby/tests/Android.bp
@@ -35,6 +35,7 @@
         "androidx.test.rules",
         "framework-nearby-pre-jarjar",
         "platform-test-annotations",
+        "service-nearby",
         "truth-prebuilt",
     ],
     test_suites: [
diff --git a/nearby/tests/src/com/android/server/nearby/common/bluetooth/fastpair/BluetoothAddressTest.java b/nearby/tests/src/com/android/server/nearby/common/bluetooth/fastpair/BluetoothAddressTest.java
new file mode 100644
index 0000000..36ebb7e
--- /dev/null
+++ b/nearby/tests/src/com/android/server/nearby/common/bluetooth/fastpair/BluetoothAddressTest.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2021 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.server.nearby.common.bluetooth.fastpair;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.bluetooth.BluetoothAdapter;
+import android.platform.test.annotations.Presubmit;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/** Unit tests for {@link BluetoothAddress}. */
+@Presubmit
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class BluetoothAddressTest {
+
+    @Test
+    public void maskBluetoothAddress_whenInputIsNull() {
+        assertThat(BluetoothAddress.maskBluetoothAddress(null)).isEqualTo("");
+    }
+
+    @Test
+    public void maskBluetoothAddress_whenInputStringNotMatchFormat() {
+        assertThat(BluetoothAddress.maskBluetoothAddress("AA:BB:CC")).isEqualTo("AA:BB:CC");
+    }
+
+    @Test
+    public void maskBluetoothAddress_whenInputStringMatchFormat() {
+        assertThat(BluetoothAddress.maskBluetoothAddress("AA:BB:CC:DD:EE:FF"))
+                .isEqualTo("XX:XX:XX:XX:EE:FF");
+    }
+
+    @Test
+    public void maskBluetoothAddress_whenInputStringContainLowerCaseMatchFormat() {
+        assertThat(BluetoothAddress.maskBluetoothAddress("Aa:Bb:cC:dD:eE:Ff"))
+                .isEqualTo("XX:XX:XX:XX:EE:FF");
+    }
+
+    @Test
+    public void maskBluetoothAddress_whenInputBluetoothDevice() {
+        assertThat(
+                BluetoothAddress.maskBluetoothAddress(
+                        BluetoothAdapter.getDefaultAdapter().getRemoteDevice("FF:EE:DD:CC:BB:AA")))
+                .isEqualTo("XX:XX:XX:XX:BB:AA");
+    }
+}