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-rw-r--r--test/functional/api/highlight_spec.lua12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/functional/api/highlight_spec.lua b/test/functional/api/highlight_spec.lua
index a9d4c72d31..daf20c006c 100644
--- a/test/functional/api/highlight_spec.lua
+++ b/test/functional/api/highlight_spec.lua
@@ -7,6 +7,7 @@ local meths = helpers.meths
local funcs = helpers.funcs
local pcall_err = helpers.pcall_err
local ok = helpers.ok
+local assert_alive = helpers.assert_alive
describe('API: highlight',function()
local expected_rgb = {
@@ -145,4 +146,15 @@ describe('API: highlight',function()
eq({foreground=tonumber("0x888888"), background=tonumber("0x888888")},
meths.get_hl_by_name("Shrubbery", true))
end)
+
+ it("nvim_buf_add_highlight to other buffer doesn't crash if undo is disabled #12873", function()
+ command('vsplit file')
+ local err, _ = pcall(meths.buf_set_option, 1, 'undofile', false)
+ eq(true, err)
+ err, _ = pcall(meths.buf_set_option, 1, 'undolevels', -1)
+ eq(true, err)
+ err, _ = pcall(meths.buf_add_highlight, 1, -1, 'Question', 0, 0, -1)
+ eq(true, err)
+ assert_alive()
+ end)
end)