Add backup data round trip test

Bug: 111386661
Test: make RunBackupEncryptionRoboIntegTests
Change-Id: Idbfec4ff7bcb0d0b44931884d1c11af7a937bd30
diff --git a/packages/BackupEncryption/test/robolectric-integration/Android.bp b/packages/BackupEncryption/test/robolectric-integration/Android.bp
new file mode 100644
index 0000000..f696278
--- /dev/null
+++ b/packages/BackupEncryption/test/robolectric-integration/Android.bp
@@ -0,0 +1,33 @@
+// 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.
+
+android_robolectric_test {
+    name: "BackupEncryptionRoboIntegTests",
+    srcs: [
+        "src/**/*.java",
+    ],
+    java_resource_dirs: ["config"],
+    libs: [
+        "backup-encryption-protos",
+        "platform-test-annotations",
+        "testng",
+        "truth-prebuilt",
+    ],
+    static_libs: [
+        "androidx.test.core",
+        "androidx.test.runner",
+        "androidx.test.rules",
+    ],
+    instrumentation_for: "BackupEncryption",
+}