diff --git a/packages/ExternalStorageProvider/Android.bp b/packages/ExternalStorageProvider/Android.bp
new file mode 100644
index 0000000..973fef3
--- /dev/null
+++ b/packages/ExternalStorageProvider/Android.bp
@@ -0,0 +1,19 @@
+android_app {
+    name: "ExternalStorageProvider",
+
+    manifest: "AndroidManifest.xml",
+
+    resource_dirs: [
+        "res",
+    ],
+
+    srcs: [
+        "src/**/*.java",
+    ],
+
+    platform_apis: true,
+
+    certificate: "platform",
+
+    privileged: true,
+}
diff --git a/packages/ExternalStorageProvider/Android.mk b/packages/ExternalStorageProvider/Android.mk
deleted file mode 100644
index 9e99313..0000000
--- a/packages/ExternalStorageProvider/Android.mk
+++ /dev/null
@@ -1,13 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_SRC_FILES := $(call all-subdir-java-files)
-
-LOCAL_PACKAGE_NAME := ExternalStorageProvider
-LOCAL_PRIVATE_PLATFORM_APIS := true
-LOCAL_CERTIFICATE := platform
-LOCAL_PRIVILEGED_MODULE := true
-
-include $(BUILD_PACKAGE)
diff --git a/packages/ExternalStorageProvider/tests/Android.bp b/packages/ExternalStorageProvider/tests/Android.bp
new file mode 100644
index 0000000..83427d4
--- /dev/null
+++ b/packages/ExternalStorageProvider/tests/Android.bp
@@ -0,0 +1,25 @@
+android_test {
+    name: "ExternalStorageProviderTests",
+
+    manifest: "AndroidManifest.xml",
+
+    srcs: [
+        "src/**/*.java",
+    ],
+
+    libs: [
+        "android.test.base",
+        "android.test.mock",
+        "android.test.runner",
+    ],
+
+    static_libs: [
+        "android-support-test",
+        "mockito-target",
+        "truth-prebuilt",
+    ],
+
+    certificate: "platform",
+
+    instrumentation_for: "ExternalStorageProvider",
+}
diff --git a/packages/ExternalStorageProvider/tests/AndroidManifest.xml b/packages/ExternalStorageProvider/tests/AndroidManifest.xml
new file mode 100644
index 0000000..58b6e86
--- /dev/null
+++ b/packages/ExternalStorageProvider/tests/AndroidManifest.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.externalstorage.tests">
+
+    <application android:label="ExternalStorageProvider Tests">
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+                     android:targetPackage="com.android.externalstorage"
+                     android:label="ExternalStorageProvider Tests" />
+</manifest>
+
diff --git a/packages/ExternalStorageProvider/tests/AndroidTest.xml b/packages/ExternalStorageProvider/tests/AndroidTest.xml
new file mode 100644
index 0000000..e5fa73f
--- /dev/null
+++ b/packages/ExternalStorageProvider/tests/AndroidTest.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 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.
+-->
+<configuration description="Runs Tests for ExternalStorageProvider.">
+    <target_preparer class="com.android.tradefed.targetprep.TestAppInstallSetup">
+        <option name="test-file-name" value="ExternalStorageProviderTests.apk" />
+    </target_preparer>
+
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="framework-base-presubmit" />
+    <option name="test-tag" value="ExternalStorageProviderTests" />
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.externalstorage.tests" />
+        <option name="runner" value="android.support.test.runner.AndroidJUnitRunner" />
+        <option name="hidden-api-checks" value="false"/>
+    </test>
+</configuration>
diff --git a/packages/ExternalStorageProvider/tests/src/com/android/externalstorage/ExternalStorageProviderTest.java b/packages/ExternalStorageProvider/tests/src/com/android/externalstorage/ExternalStorageProviderTest.java
new file mode 100644
index 0000000..a88b3e1
--- /dev/null
+++ b/packages/ExternalStorageProvider/tests/src/com/android/externalstorage/ExternalStorageProviderTest.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 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.externalstorage;
+
+import static com.android.externalstorage.ExternalStorageProvider.AUTHORITY;
+
+import static org.mockito.Mockito.atLeast;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.content.pm.ProviderInfo;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class ExternalStorageProviderTest {
+    @Test
+    public void onCreate_shouldUpdateVolumes() throws Exception {
+        ExternalStorageProvider externalStorageProvider = new ExternalStorageProvider();
+        ExternalStorageProvider spyProvider = spy(externalStorageProvider);
+        ProviderInfo providerInfo = new ProviderInfo();
+        providerInfo.authority = AUTHORITY;
+        providerInfo.grantUriPermissions = true;
+        providerInfo.exported = true;
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync(new Runnable() {
+            @Override
+            public void run() {
+                spyProvider.attachInfoForTesting(
+                        InstrumentationRegistry.getTargetContext(), providerInfo);
+            }
+        });
+
+        verify(spyProvider, atLeast(1)).updateVolumes();
+    }
+}