Move functional tests into separate test target.
Also separate out support code from unittests.
Change-Id: I81490950373e170c857b23468da8d97d6aaf50d9
diff --git a/tests/README b/tests/README
new file mode 100644
index 0000000..9fc4e04
--- /dev/null
+++ b/tests/README
@@ -0,0 +1,8 @@
+Welcome to our tests!
+
+unit tests are under the 'unit/' dir, function under 'functional/'.
+
+To run just small tests"
+adb shell am instrument -w -e debug false -e log false -e timeout_msec 300000 -e size small com.android.documentsui.tests/android.support.test.runner.AndroidJUnitRunner
+
+Replace '-e size small' with '-e size large'.