authfs: Integration test

This test currently only runs on Android, not VM, to verify existing
features. It needs to be moved into the VM when ready.

Bug: 178874539
Test: atest AuthFsHostTest

Change-Id: I7334b6ae0e684c36a9e350fe148c12a382ef076e
diff --git a/authfs/tests/Android.bp b/authfs/tests/Android.bp
new file mode 100644
index 0000000..56e54f2
--- /dev/null
+++ b/authfs/tests/Android.bp
@@ -0,0 +1,11 @@
+java_test_host {
+    name: "AuthFsHostTest",
+    srcs: ["java/**/*.java"],
+    libs: [
+        "tradefed",
+        "compatibility-tradefed",
+        "compatibility-host-util",
+    ],
+    test_suites: ["general-tests"],
+    data: [":authfs_test_files"],
+}