diff --git a/tests/robotests/Android.bp b/tests/robotests/Android.bp
new file mode 100644
index 0000000..e983542
--- /dev/null
+++ b/tests/robotests/Android.bp
@@ -0,0 +1,18 @@
+//############################################################
+// MmsService Robolectric test target.                       #
+//############################################################
+
+android_robolectric_test {
+    name: "MmsServiceRoboTests",
+
+    srcs: ["src/**/*.java"],
+
+    java_resource_dirs: ["config"],
+
+    static_libs: ["testng"],
+
+    instrumentation_for: "MmsService",
+}
+
+
+
diff --git a/tests/robotests/config/robolectric.properties b/tests/robotests/config/robolectric.properties
new file mode 100644
index 0000000..fab7251
--- /dev/null
+++ b/tests/robotests/config/robolectric.properties
@@ -0,0 +1 @@
+sdk=NEWEST_SDK
diff --git a/tests/robotests/src/com/android/mms/service/MmsServiceRoboTest.java b/tests/robotests/src/com/android/mms/service/MmsServiceRoboTest.java
new file mode 100644
index 0000000..5e4c309
--- /dev/null
+++ b/tests/robotests/src/com/android/mms/service/MmsServiceRoboTest.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 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.mms.service;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.testng.Assert.assertThrows;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Process;
+import android.os.RemoteException;
+
+import com.android.internal.telephony.IMms;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowBinder;
+
+@RunWith(RobolectricTestRunner.class)
+public final class MmsServiceRoboTest {
+    private IMms.Stub binder;
+
+    @Before
+    public void setUp() {
+        MmsService mmsService = Robolectric.setupService(MmsService.class);
+
+        final Intent intent = new Intent();
+
+        binder = (IMms.Stub) mmsService.onBind(intent);
+    }
+
+    @Test
+    public void testOnBind_IsNotNull() {
+        assertThat(binder).isNotNull();
+    }
+
+    @Test
+    public void testSendMessage_DoesNotThrowIfSystemUid() throws RemoteException {
+        ShadowBinder.setCallingUid(Process.SYSTEM_UID);
+        binder.sendMessage(/* subId= */ 0, "callingPkg", Uri.parse("contentUri"),
+                "locationUrl", /* configOverrides= */ null, /* sentIntent= */ null);
+    }
+
+    @Test
+    public void testSendMessageThrows_IfNotSystemUid() {
+        assertThrows(SecurityException.class,
+                () -> binder.sendMessage(/* subId= */ 0, "callingPkg", Uri.parse("contentUri"),
+                        "locationUrl", /* configOverrides= */ null, /* sentIntent= */ null));
+    }
+}