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fix(ui): don't crash if maximum UI count reached (#37636)

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This commit is contained in:
zeertzjq
2026-01-31 21:09:06 +08:00
committed by GitHub
parent 1e6c4ea896
commit 7ca3a56258
4 changed files with 36 additions and 11 deletions
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29
test/functional/api/ui_spec.lua
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@@ -71,6 +71,23 @@ describe('nvim_ui_attach()', function()
pcall_err(request, 'nvim_ui_attach', 40, 10, { rgb = false })
)
end)
it('does not crash if maximum UI count is reached', function()
t.skip(t.is_os('win'), 'n.connect() hangs on Windows')
local server = api.nvim_get_vvar('servername')
local screens = {} --- @type test.functional.ui.screen[]
for i = 1, 16 do
screens[i] = Screen.new(nil, nil, nil, n.connect(server))
end
eq(
-- 0 is kErrorTypeException
{ false, { 0, 'Maximum UI count reached' } },
{ n.connect(server):request('nvim_ui_attach', 80, 24, {}) }
)
for i = 1, 16 do
screens[i]:detach()
end
end)
end)
describe('nvim_ui_send', function()
@@ -100,9 +117,9 @@ describe('nvim_ui_send', function()
poke_eventloop()
screen:expect([[
^ |
{1:~ }|*8
|
^ |
{1:~ }|*8
|
]])
eq('Hello world', table.concat(read_data))
@@ -130,9 +147,9 @@ describe('nvim_ui_send', function()
poke_eventloop()
screen:expect([[
^ |
{1:~ }|*8
|
^ |
{1:~ }|*8
|
]])
eq('', table.concat(read_data))