MicrodroidTestApp is a self-instrumenting test

This is a first step for making our tests to run on device.
MicrodroidTestApp now becomes a self-instrumenting test. The test
currently does nothing at the moment though.

Bug: 203483081
Test: atest MicrodroidTestApp
Change-Id: I675f622e9d014fb1bb358d4ab537dcd5377ba2ba
diff --git a/tests/testapk/AndroidTest.xml b/tests/testapk/AndroidTest.xml
new file mode 100644
index 0000000..25b1001
--- /dev/null
+++ b/tests/testapk/AndroidTest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<configuration description="Runs sample instrumentation test.">
+    <target_preparer class="com.android.tradefed.targetprep.TestAppInstallSetup">
+        <option name="test-file-name" value="MicrodroidTestApp.apk" />
+    </target_preparer>
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.microdroid.test" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+    </test>
+</configuration>