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test: scheduled callback shouldn't trigger ModeChanged repeatedly

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Munif Tanjim 2023-04-23 18:42:03 +06:00 committed by zeertzjq
parent e0d6703a6a
commit a35bca2112
1 changed files with 37 additions and 4 deletions
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41
test/functional/autocmd/modechanged_spec.lua
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@ -1,17 +1,19 @@
local helpers = require('test.functional.helpers')(after_each)
local clear, eval, eq = helpers.clear, helpers.eval, helpers.eq
local feed, command = helpers.feed, helpers.command
local exec_lua = helpers.exec_lua
describe('ModeChanged', function()
before_each(function()
clear()
command('let g:count = 0')
command('au ModeChanged * let g:event = copy(v:event)')
command('au ModeChanged * let g:count += 1')
end)
it('picks up terminal mode changes', function()
command("term")
command('let g:count = 0')
command('au ModeChanged * let g:event = copy(v:event)')
command('au ModeChanged * let g:count += 1')
command('term')
feed('i')
eq({
old_mode = 'nt',
@ -28,4 +30,35 @@ describe('ModeChanged', function()
-- v:event is cleared after the autocommand is done
eq({}, eval('v:event'))
end)
it('does not repeatedly trigger for scheduled callback', function()
exec_lua([[
vim.g.s_count = 0
vim.g.s_mode = ""
vim.g.t_count = 0
vim.g.t_mode = ""
vim.api.nvim_create_autocmd("ModeChanged", {
callback = function()
vim.g.s_count = vim.g.s_count + 1
vim.g.s_mode = vim.api.nvim_get_mode().mode
vim.schedule(function()
vim.g.t_count = vim.g.t_count + 1
vim.g.t_mode = vim.api.nvim_get_mode().mode
end)
end,
})
]])
feed('d')
eq(1, eval('g:s_count'))
eq('no', eval('g:s_mode'))
eq(1, eval('g:t_count'))
eq('no', eval('g:t_mode'))
feed('<Esc>')
eq(2, eval('g:s_count'))
eq('n', eval('g:s_mode'))
eq(2, eval('g:t_count'))
eq('n', eval('g:t_mode'))
end)
end)