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-rw-r--r--test/functional/terminal/buffer_spec.lua10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/functional/terminal/buffer_spec.lua b/test/functional/terminal/buffer_spec.lua
index 1cef771f0d..ec3066c20d 100644
--- a/test/functional/terminal/buffer_spec.lua
+++ b/test/functional/terminal/buffer_spec.lua
@@ -5,6 +5,8 @@ local feed, clear, nvim = helpers.feed, helpers.clear, helpers.nvim
local poke_eventloop = helpers.poke_eventloop
local eval, feed_command, source = helpers.eval, helpers.feed_command, helpers.source
local eq, neq = helpers.eq, helpers.neq
+local meths = helpers.meths
+local retry = helpers.retry
local write_file = helpers.write_file
local command = helpers.command
local exc_exec = helpers.exc_exec
@@ -364,3 +366,11 @@ describe('on_lines does not emit out-of-bounds line indexes when', function()
eq('', exec_lua([[return _G.cb_error]]))
end)
end)
+
+it('terminal truncates number of composing characters to 5', function()
+ clear()
+ local chan = meths.open_term(0, {})
+ local composing = ('a̳'):sub(2)
+ meths.chan_send(chan, 'a' .. composing:rep(8))
+ retry(nil, nil, function() eq('a' .. composing:rep(5), meths.get_current_line()) end)
+end)