--- a/tests/test-manifest.t	Fri Mar 15 12:17:30 2019 +0000
+++ b/tests/test-manifest.t	Thu Mar 14 09:12:55 2019 +0000
@@ -108,6 +108,10 @@
   $ hg debugmanifestfulltextcache
   cache empty
 
+(Clearing the cache in case of any content)
+
+  $ hg debugmanifestfulltextcache --clear
+
 Adding a new persistent entry in the cache
 
   $ hg debugmanifestfulltextcache --add 1e01206b1d2f72bd55f2a33fa8ccad74144825b7