Test for atest --skylab.

BUG=chromium:826492
TEST=None

Change-Id: Icbcf2fbb6af940d4a7a7b938e23620a4dca85251
diff --git a/atest-test.txt b/atest-test.txt
new file mode 100644
index 0000000..66ba8a2
--- /dev/null
+++ b/atest-test.txt
@@ -0,0 +1 @@
+Test for atest --skylab tool