--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/simpletest/files/README.txt	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,4 @@
+These files are useful in tests that upload files or otherwise need to
+manipulate files, in which case they are copied to the files directory as
+specified in the site settings. Dummy files can also be generated by tests in
+order to save space.