Bound syntax-highlight memory and widen coverage

1 file changed, 5 insertions, 0 deletions

diff --git a/tests/filters/dump.lua b/tests/filters/dump.lua
index 1f15c93..ef7f3bf 100644
--- a/tests/filters/dump.lua
+++ b/tests/filters/dump.lua
@@ -1,3 +1,8 @@
+-- Test fixture for the cgit Lua filter API, exercised by tests/t0111-filter.sh.
+-- It echoes the filter_open arguments and upper-cases the body, which lets the
+-- test confirm that arguments and content flow through the lua: filter path. It
+-- is not a production filter. Runs on Lua 5.1 through 5.4 and LuaJIT.
+
 function filter_open(...)
 	buffer = ""
 	for i = 1, select("#", ...) do