neovim/test/functional/api/vim_spec.lua

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-- Sanity checks for vim_* API calls via msgpack-rpc
local helpers = require('test.functional.helpers')
local Screen = require('test.functional.ui.screen')
local clear, nvim, eq, neq = helpers.clear, helpers.nvim, helpers.eq, helpers.neq
local ok, nvim_async, feed = helpers.ok, helpers.nvim_async, helpers.feed
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local os_name = helpers.os_name
describe('vim_* functions', function()
before_each(clear)
describe('command', function()
it('works', function()
local fname = os.tmpname()
nvim('command', 'new')
nvim('command', 'edit '..fname)
nvim('command', 'normal itesting\napi')
nvim('command', 'w')
local f = io.open(fname)
ok(f ~= nil)
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if os_name() == 'windows' then
eq('testing\r\napi\r\n', f:read('*a'))
else
eq('testing\napi\n', f:read('*a'))
end
f:close()
os.remove(fname)
end)
end)
describe('eval', function()
it('works', function()
nvim('command', 'let g:v1 = "a"')
nvim('command', 'let g:v2 = [1, 2, {"v3": 3}]')
eq({v1 = 'a', v2 = {1, 2, {v3 = 3}}}, nvim('eval', 'g:'))
end)
it('handles NULL-initialized strings correctly', function()
eq(1, nvim('eval',"matcharg(1) == ['', '']"))
eq({'', ''}, nvim('eval','matcharg(1)'))
end)
end)
describe('call_function', function()
it('works', function()
nvim('call_function', 'setqflist', {{{ filename = 'something', lnum = 17}}, 'r'})
eq(17, nvim('call_function', 'getqflist', {})[1].lnum)
eq(17, nvim('call_function', 'eval', {17}))
eq('foo', nvim('call_function', 'simplify', {'this/./is//redundant/../../../foo'}))
end)
end)
describe('strwidth', function()
it('works', function()
eq(3, nvim('strwidth', 'abc'))
-- 6 + (neovim)
-- 19 * 2 (each japanese character occupies two cells)
eq(44, nvim('strwidth', 'neovimのデザインかなりまともなのになってる。'))
end)
it('cannot handle NULs', function()
eq(0, nvim('strwidth', '\0abc'))
end)
end)
describe('{get,set}_current_line', function()
it('works', function()
eq('', nvim('get_current_line'))
nvim('set_current_line', 'abc')
eq('abc', nvim('get_current_line'))
end)
end)
describe('{get,set}_var', function()
it('works', function()
nvim('set_var', 'lua', {1, 2, {['3'] = 1}})
eq({1, 2, {['3'] = 1}}, nvim('get_var', 'lua'))
eq({1, 2, {['3'] = 1}}, nvim('eval', 'g:lua'))
end)
it('set_var returns the old value', function()
local val1 = {1, 2, {['3'] = 1}}
local val2 = {4, 7}
eq(NIL, nvim('set_var', 'lua', val1))
eq(val1, nvim('set_var', 'lua', val2))
end)
it('truncates values with NULs in them', function()
nvim('set_var', 'xxx', 'ab\0cd')
eq('ab', nvim('get_var', 'xxx'))
end)
end)
describe('{get,set}_option', function()
it('works', function()
ok(nvim('get_option', 'equalalways'))
nvim('set_option', 'equalalways', false)
ok(not nvim('get_option', 'equalalways'))
end)
end)
describe('{get,set}_current_buffer and get_buffers', function()
it('works', function()
eq(1, #nvim('get_buffers'))
eq(nvim('get_buffers')[1], nvim('get_current_buffer'))
nvim('command', 'new')
eq(2, #nvim('get_buffers'))
eq(nvim('get_buffers')[2], nvim('get_current_buffer'))
nvim('set_current_buffer', nvim('get_buffers')[1])
eq(nvim('get_buffers')[1], nvim('get_current_buffer'))
end)
end)
describe('{get,set}_current_window and get_windows', function()
it('works', function()
eq(1, #nvim('get_windows'))
eq(nvim('get_windows')[1], nvim('get_current_window'))
nvim('command', 'vsplit')
nvim('command', 'split')
eq(3, #nvim('get_windows'))
eq(nvim('get_windows')[1], nvim('get_current_window'))
nvim('set_current_window', nvim('get_windows')[2])
eq(nvim('get_windows')[2], nvim('get_current_window'))
end)
end)
describe('{get,set}_current_tabpage and get_tabpages', function()
it('works', function()
eq(1, #nvim('get_tabpages'))
eq(nvim('get_tabpages')[1], nvim('get_current_tabpage'))
nvim('command', 'tabnew')
eq(2, #nvim('get_tabpages'))
eq(2, #nvim('get_windows'))
eq(nvim('get_windows')[2], nvim('get_current_window'))
eq(nvim('get_tabpages')[2], nvim('get_current_tabpage'))
nvim('set_current_window', nvim('get_windows')[1])
-- Switching window also switches tabpages if necessary
eq(nvim('get_tabpages')[1], nvim('get_current_tabpage'))
eq(nvim('get_windows')[1], nvim('get_current_window'))
nvim('set_current_tabpage', nvim('get_tabpages')[2])
eq(nvim('get_tabpages')[2], nvim('get_current_tabpage'))
eq(nvim('get_windows')[2], nvim('get_current_window'))
end)
end)
describe('replace_termcodes', function()
it('escapes K_SPECIAL as K_SPECIAL KS_SPECIAL KE_FILLER', function()
eq('\128\254X', helpers.nvim('replace_termcodes', '\128', true, true, true))
end)
it('leaves non-K_SPECIAL string unchanged', function()
eq('abc', helpers.nvim('replace_termcodes', 'abc', true, true, true))
end)
it('converts <expressions>', function()
eq('\\', helpers.nvim('replace_termcodes', '<Leader>', true, true, true))
end)
it('converts <LeftMouse> to K_SPECIAL KS_EXTRA KE_LEFTMOUSE', function()
-- K_SPECIAL KS_EXTRA KE_LEFTMOUSE
-- 0x80 0xfd 0x2c
-- 128 253 44
eq('\128\253\44', helpers.nvim('replace_termcodes',
'<LeftMouse>', true, true, true))
end)
end)
describe('feedkeys', function()
it('CSI escaping', function()
local function on_setup()
-- notice the special char(…) \xe2\80\xa6
nvim('feedkeys', ':let x1="…"\n', '', true)
-- Both replace_termcodes and feedkeys escape \x80
local inp = helpers.nvim('replace_termcodes', ':let x2="…"<CR>', true, true, true)
nvim('feedkeys', inp, '', true)
-- Disabling CSI escaping in feedkeys
inp = helpers.nvim('replace_termcodes', ':let x3="…"<CR>', true, true, true)
nvim('feedkeys', inp, '', false)
helpers.stop()
end
-- spin the loop a bit
helpers.run(nil, nil, on_setup)
eq(nvim('get_var', 'x1'), '')
-- Because of the double escaping this is neq
neq(nvim('get_var', 'x2'), '')
eq(nvim('get_var', 'x3'), '')
end)
end)
describe('err_write', function()
local screen
before_each(function()
clear()
screen = Screen.new(40, 8)
screen:attach()
screen:set_default_attr_ids({
[1] = {foreground = Screen.colors.White, background = Screen.colors.Red},
[2] = {bold = true, foreground = Screen.colors.SeaGreen}
})
screen:set_default_attr_ignore( {{bold=true, foreground=Screen.colors.Blue}} )
end)
it('can show one line', function()
nvim_async('err_write', 'has bork\n')
screen:expect([[
^ |
~ |
~ |
~ |
~ |
~ |
~ |
{1:has bork} |
]])
end)
it('shows return prompt when more than &cmdheight lines', function()
nvim_async('err_write', 'something happened\nvery bad\n')
screen:expect([[
~ |
~ |
~ |
~ |
~ |
{1:something happened} |
{1:very bad} |
{2:Press ENTER or type command to continue}^ |
]])
end)
it('shows return prompt after all lines are shown', function()
nvim_async('err_write', 'FAILURE\nERROR\nEXCEPTION\nTRACEBACK\n')
screen:expect([[
~ |
~ |
~ |
{1:FAILURE} |
{1:ERROR} |
{1:EXCEPTION} |
{1:TRACEBACK} |
{2:Press ENTER or type command to continue}^ |
]])
end)
it('handles multiple calls', function()
-- without linebreak text is joined to one line
nvim_async('err_write', 'very ')
nvim_async('err_write', 'fail\n')
screen:expect([[
^ |
~ |
~ |
~ |
~ |
~ |
~ |
{1:very fail} |
]])
helpers.wait()
-- shows up to &cmdheight lines
nvim_async('err_write', 'more fail\ntoo fail\n')
screen:expect([[
~ |
~ |
~ |
~ |
~ |
{1:more fail} |
{1:too fail} |
{2:Press ENTER or type command to continue}^ |
]])
feed('<cr>') -- exit the press ENTER screen
end)
end)
it('can throw exceptions', function()
local status, err = pcall(nvim, 'get_option', 'invalid-option')
eq(false, status)
ok(err:match('Invalid option name') ~= nil)
end)
end)