blob: 7e61de22c2a3fdc8a9c4deb896316b7e3e0b32d8 [file] [log] [blame] [edit]
" Tests for Lua.
" This test also works without the lua feature.
func Test_skip_lua()
if 0
lua print("Not executed")
endif
endfunc
CheckFeature lua
" Depending on the lua version, the error messages are different.
let [s:major, s:minor, s:patch] = luaeval('vim.lua_version')->split('\.')->map({-> str2nr(v:val)})
let s:lua_53_or_later = 0
let s:lua_543 = 0
if (s:major == 5 && s:minor >= 3) || s:major > 5
let s:lua_53_or_later = 1
if s:major == 5 && s:minor == 4 && s:patch == 3
let s:lua_543 = 1
endif
endif
func TearDown()
" Run garbage collection after each test to exercise luaV_setref().
call test_garbagecollect_now()
endfunc
" Check that switching to another buffer does not trigger ml_get error.
func Test_lua_luado_change_buffer()
new
let wincount = winnr('$')
call setline(1, ['one', 'two', 'three'])
luado vim.command("new")
call assert_equal(wincount + 1, winnr('$'))
%bwipe!
endfunc
" Check that :luado deleting lines does not trigger ml_get error.
func Test_lua_luado_delete_lines()
new
call setline(1, ['one', 'two', 'three'])
luado vim.command("%d_")
call assert_equal([''], getline(1, '$'))
call setline(1, ['one', 'two', 'three'])
luado vim.command("1,2d_")
call assert_equal(['three'], getline(1, '$'))
call setline(1, ['one', 'two', 'three'])
luado vim.command("2,3d_"); return "REPLACED"
call assert_equal(['REPLACED'], getline(1, '$'))
call setline(1, ['one', 'two', 'three'])
2,3luado vim.command("1,2d_"); return "REPLACED"
call assert_equal(['three'], getline(1, '$'))
bwipe!
endfunc
func Test_lua_luado()
new
call setline(1, ['one', 'two'])
luado return(linenr)
call assert_equal(['1', '2'], getline(1, '$'))
close!
" Error cases
call assert_fails('luado string.format()',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'format' (string expected, got no value)")
if s:lua_543
let msg = "[string \"vim chunk\"]:1: global 'func' is not callable (a nil value)"
elseif s:lua_53_or_later
let msg = "[string \"vim chunk\"]:1: attempt to call a nil value (global 'func')"
else
let msg = "[string \"vim chunk\"]:1: attempt to call global 'func' (a nil value)"
endif
call assert_fails('luado func()', msg)
call assert_fails('luado error("failed")', "[string \"vim chunk\"]:1: failed")
endfunc
" Test vim.eval()
func Test_lua_eval()
" lua.eval with a number
lua v = vim.eval('123')
call assert_equal('number', luaeval('vim.type(v)'))
call assert_equal(123, luaeval('v'))
" lua.eval with a string
lua v = vim.eval('"abc"')
call assert_equal('string', 'vim.type(v)'->luaeval())
call assert_equal('abc', luaeval('v'))
" lua.eval with a list
lua v = vim.eval("['a']")
call assert_equal('list', luaeval('vim.type(v)'))
call assert_equal(['a'], luaeval('v'))
" lua.eval with a dict
lua v = vim.eval("{'a':'b'}")
call assert_equal('dict', luaeval('vim.type(v)'))
call assert_equal({'a':'b'}, luaeval('v'))
" lua.eval with a blob
lua v = vim.eval("0z00112233.deadbeef")
call assert_equal('blob', luaeval('vim.type(v)'))
call assert_equal(0z00112233.deadbeef, luaeval('v'))
" lua.eval with a float
lua v = vim.eval('3.14')
call assert_equal('number', luaeval('vim.type(v)'))
call assert_equal(3.14, luaeval('v'))
" lua.eval with a bool
lua v = vim.eval('v:true')
call assert_equal('boolean', luaeval('vim.type(v)'))
call assert_equal(v:true, luaeval('v'))
lua v = vim.eval('v:false')
call assert_equal('boolean', luaeval('vim.type(v)'))
call assert_equal(v:false, luaeval('v'))
" lua.eval with a null
lua v = vim.eval('v:null')
call assert_equal('nil', luaeval('vim.type(v)'))
call assert_equal(v:null, luaeval('v'))
call assert_fails('lua v = vim.eval(nil)',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got nil)")
call assert_fails('lua v = vim.eval(true)',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got boolean)")
call assert_fails('lua v = vim.eval({})',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got table)")
call assert_fails('lua v = vim.eval(print)',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got function)")
call assert_fails('lua v = vim.eval(vim.buffer())',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got userdata)")
lua v = nil
endfunc
" Test luaeval() with lambda
func Test_luaeval_with_lambda()
lua function hello_luaeval_lambda(a, cb) return a .. cb() end
call assert_equal('helloworld',
\ luaeval('hello_luaeval_lambda(_A[1], _A[2])',
\ ['hello', {->'world'}]))
lua hello_luaeval_lambda = nil
endfunc
" Test vim.window()
func Test_lua_window()
e Xfoo2
new Xfoo1
" Window 1 (top window) contains Xfoo1
" Window 2 (bottom window) contains Xfoo2
call assert_equal('Xfoo1', luaeval('vim.window(1):buffer().name'))
call assert_equal('Xfoo2', luaeval('vim.window(2):buffer().name'))
" Window 3 does not exist so vim.window(3) should return nil
call assert_equal('nil', luaeval('tostring(vim.window(3))'))
if s:lua_543
let msg = "[string \"luaeval\"]:1: field 'xyz' is not callable (a nil value)"
elseif s:lua_53_or_later
let msg = "[string \"luaeval\"]:1: attempt to call a nil value (field 'xyz')"
else
let msg = "[string \"luaeval\"]:1: attempt to call field 'xyz' (a nil value)"
endif
call assert_fails("let n = luaeval('vim.window().xyz()')", msg)
call assert_fails('lua vim.window().xyz = 1',
\ "[string \"vim chunk\"]:1: invalid window property: `xyz'")
%bwipe!
endfunc
" Test vim.window().height
func Test_lua_window_height()
new
lua vim.window().height = 2
call assert_equal(2, winheight(0))
lua vim.window().height = vim.window().height + 1
call assert_equal(3, winheight(0))
bwipe!
endfunc
" Test vim.window().width
func Test_lua_window_width()
vert new
lua vim.window().width = 2
call assert_equal(2, winwidth(0))
lua vim.window().width = vim.window().width + 1
call assert_equal(3, winwidth(0))
bwipe!
endfunc
" Test vim.window().line and vim.window.col
func Test_lua_window_line_col()
new
call setline(1, ['line1', 'line2', 'line3'])
lua vim.window().line = 2
lua vim.window().col = 4
call assert_equal([0, 2, 4, 0], getpos('.'))
lua vim.window().line = vim.window().line + 1
lua vim.window().col = vim.window().col - 1
call assert_equal([0, 3, 3, 0], getpos('.'))
call assert_fails('lua vim.window().line = 10',
\ '[string "vim chunk"]:1: line out of range')
bwipe!
endfunc
" Test vim.call
func Test_lua_call()
call assert_equal(has('lua'), luaeval('vim.call("has", "lua")'))
call assert_equal(printf("Hello %s", "vim"), luaeval('vim.call("printf", "Hello %s", "vim")'))
" Error cases
call assert_fails("call luaeval('vim.call(\"min\", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)')",
\ s:lua_53_or_later
\ ? '[string "luaeval"]:1: Function called with too many arguments'
\ : 'Function called with too many arguments')
lua co = coroutine.create(function () print("hi") end)
call assert_fails("call luaeval('vim.call(\"type\", co)')",
\ s:lua_53_or_later
\ ? '[string "luaeval"]:1: lua: cannot convert value'
\ : 'lua: cannot convert value')
lua co = nil
call assert_fails("call luaeval('vim.call(\"abc\")')",
\ ['E117:', s:lua_53_or_later ? '\[string "luaeval"]:1: lua: call_vim_function failed'
\ : 'lua: call_vim_function failed'])
endfunc
" Test vim.fn.*
func Test_lua_fn()
call assert_equal(has('lua'), luaeval('vim.fn.has("lua")'))
call assert_equal(printf("Hello %s", "vim"), luaeval('vim.fn.printf("Hello %s", "vim")'))
endfunc
" Test setting the current window
func Test_lua_window_set_current()
new Xfoo1
lua w1 = vim.window()
new Xfoo2
lua w2 = vim.window()
call assert_equal('Xfoo2', bufname('%'))
lua w1()
call assert_equal('Xfoo1', bufname('%'))
lua w2()
call assert_equal('Xfoo2', bufname('%'))
lua w1, w2 = nil
%bwipe!
endfunc
" Test vim.window().buffer
func Test_lua_window_buffer()
new Xfoo1
lua w1 = vim.window()
lua b1 = w1.buffer()
new Xfoo2
lua w2 = vim.window()
lua b2 = w2.buffer()
lua b1()
call assert_equal('Xfoo1', bufname('%'))
lua b2()
call assert_equal('Xfoo2', bufname('%'))
lua b1, b2, w1, w2 = nil
%bwipe!
endfunc
" Test vim.window():previous() and vim.window():next()
func Test_lua_window_next_previous()
new Xfoo1
new Xfoo2
new Xfoo3
wincmd j
call assert_equal('Xfoo2', luaeval('vim.window().buffer().name'))
call assert_equal('Xfoo1', luaeval('vim.window():next():buffer().name'))
call assert_equal('Xfoo3', luaeval('vim.window():previous():buffer().name'))
%bwipe!
endfunc
" Test vim.window():isvalid()
func Test_lua_window_isvalid()
new Xfoo
lua w = vim.window()
call assert_true(luaeval('w:isvalid()'))
" FIXME: how to test the case when isvalid() returns v:false?
" isvalid() gives errors when the window is deleted. Is it a bug?
lua w = nil
bwipe!
endfunc
" Test vim.buffer() with and without argument
func Test_lua_buffer()
new Xfoo1
let bn1 = bufnr('%')
new Xfoo2
let bn2 = bufnr('%')
" Test vim.buffer() without argument.
call assert_equal('Xfoo2', luaeval("vim.buffer().name"))
" Test vim.buffer() with string argument.
call assert_equal('Xfoo1', luaeval("vim.buffer('Xfoo1').name"))
call assert_equal('Xfoo2', luaeval("vim.buffer('Xfoo2').name"))
" Test vim.buffer() with integer argument.
call assert_equal('Xfoo1', luaeval("vim.buffer(" . bn1 . ").name"))
call assert_equal('Xfoo2', luaeval("vim.buffer(" . bn2 . ").name"))
lua bn1, bn2 = nil
%bwipe!
endfunc
" Test vim.buffer().name and vim.buffer().fname
func Test_lua_buffer_name()
new
call assert_equal('', luaeval('vim.buffer().name'))
call assert_equal('', luaeval('vim.buffer().fname'))
bwipe!
new Xfoo
call assert_equal('Xfoo', luaeval('vim.buffer().name'))
call assert_equal(expand('%:p'), luaeval('vim.buffer().fname'))
bwipe!
endfunc
" Test vim.buffer().number
func Test_lua_buffer_number()
" All numbers in Lua are floating points number (no integers).
call assert_equal(bufnr('%'), float2nr(luaeval('vim.buffer().number')))
endfunc
" Test inserting lines in buffer.
func Test_lua_buffer_insert()
new
lua vim.buffer()[1] = '3'
lua vim.buffer():insert('1', 0)
lua vim.buffer():insert('2', 1)
lua vim.buffer():insert('4', 10)
call assert_equal(['1', '2', '3', '4'], getline(1, '$'))
call assert_equal('4', luaeval('vim.buffer()[4]'))
call assert_equal(v:null, luaeval('vim.buffer()[5]'))
call assert_equal(v:null, luaeval('vim.buffer()[{}]'))
if s:lua_543
let msg = "[string \"vim chunk\"]:1: method 'xyz' is not callable (a nil value)"
elseif s:lua_53_or_later
let msg = "[string \"vim chunk\"]:1: attempt to call a nil value (method 'xyz')"
else
let msg = "[string \"vim chunk\"]:1: attempt to call method 'xyz' (a nil value)"
endif
call assert_fails('lua vim.buffer():xyz()', msg)
call assert_fails('lua vim.buffer()[1] = {}',
\ '[string "vim chunk"]:1: wrong argument to change')
bwipe!
endfunc
" Test deleting line in buffer
func Test_lua_buffer_delete()
new
call setline(1, ['1', '2', '3'])
call cursor(3, 1)
lua vim.buffer()[2] = nil
call assert_equal(['1', '3'], getline(1, '$'))
call assert_fails('lua vim.buffer()[3] = nil',
\ '[string "vim chunk"]:1: invalid line number')
bwipe!
endfunc
" Test #vim.buffer() i.e. number of lines in buffer
func Test_lua_buffer_number_lines()
new
call setline(1, ['a', 'b', 'c'])
call assert_equal(3, luaeval('#vim.buffer()'))
bwipe!
endfunc
" Test vim.buffer():next() and vim.buffer():previous()
" Note that these functions get the next or previous buffers
" but do not switch buffer.
func Test_lua_buffer_next_previous()
new Xfoo1
new Xfoo2
new Xfoo3
b Xfoo2
lua bn = vim.buffer():next()
lua bp = vim.buffer():previous()
call assert_equal('Xfoo2', luaeval('vim.buffer().name'))
call assert_equal('Xfoo1', luaeval('bp.name'))
call assert_equal('Xfoo3', luaeval('bn.name'))
call assert_equal('Xfoo2', bufname('%'))
lua bn()
call assert_equal('Xfoo3', luaeval('vim.buffer().name'))
call assert_equal('Xfoo3', bufname('%'))
lua bp()
call assert_equal('Xfoo1', luaeval('vim.buffer().name'))
call assert_equal('Xfoo1', bufname('%'))
lua bn, bp = nil
%bwipe!
endfunc
" Test vim.buffer():isvalid()
func Test_lua_buffer_isvalid()
new Xfoo
lua b = vim.buffer()
call assert_true(luaeval('b:isvalid()'))
" FIXME: how to test the case when isvalid() returns v:false?
" isvalid() gives errors when the buffer is wiped. Is it a bug?
lua b = nil
bwipe!
endfunc
func Test_lua_list()
call assert_equal([], luaeval('vim.list()'))
let l = []
lua l = vim.eval('l')
lua l:add(123)
lua l:add('abc')
lua l:add(true)
lua l:add(false)
lua l:add(nil)
lua l:add(vim.eval("[1, 2, 3]"))
lua l:add(vim.eval("{'a':1, 'b':2, 'c':3}"))
call assert_equal([123, 'abc', v:true, v:false, v:null, [1, 2, 3], {'a': 1, 'b': 2, 'c': 3}], l)
call assert_equal(7, luaeval('#l'))
call assert_match('^list: \%(0x\)\?\x\+$', luaeval('tostring(l)'))
lua l[1] = 124
lua l[6] = nil
lua l:insert('first')
lua l:insert('xx', 3)
call assert_fails('lua l:insert("xx", -20)',
\ '[string "vim chunk"]:1: invalid position')
call assert_equal(['first', 124, 'abc', 'xx', v:true, v:false, v:null, {'a': 1, 'b': 2, 'c': 3}], l)
lockvar 1 l
call assert_fails('lua l:add("x")', '[string "vim chunk"]:1: list is locked')
call assert_fails('lua l:insert(2)', '[string "vim chunk"]:1: list is locked')
call assert_fails('lua l[9] = 1', '[string "vim chunk"]:1: list is locked')
unlockvar l
let l = [1, 2]
lua ll = vim.eval('l')
let x = luaeval("ll[3]")
call assert_equal(v:null, x)
if s:lua_543
let msg = "[string \"luaeval\"]:1: method 'xyz' is not callable (a nil value)"
elseif s:lua_53_or_later
let msg = "[string \"luaeval\"]:1: attempt to call a nil value (method 'xyz')"
else
let msg = "[string \"luaeval\"]:1: attempt to call method 'xyz' (a nil value)"
endif
call assert_fails('let x = luaeval("ll:xyz(3)")', msg)
let y = luaeval("ll[{}]")
call assert_equal(v:null, y)
lua l = nil
endfunc
func Test_lua_list_table()
" See :help lua-vim
" Non-numeric keys should not be used to initialize the list
" so say = 'hi' should be ignored.
lua t = {3.14, 'hello', false, true, say = 'hi'}
call assert_equal([3.14, 'hello', v:false, v:true], luaeval('vim.list(t)'))
lua t = nil
call assert_fails('lua vim.list(1)', '[string "vim chunk"]:1: table expected, got number')
call assert_fails('lua vim.list("x")', '[string "vim chunk"]:1: table expected, got string')
call assert_fails('lua vim.list(print)', '[string "vim chunk"]:1: table expected, got function')
call assert_fails('lua vim.list(true)', '[string "vim chunk"]:1: table expected, got boolean')
endfunc
func Test_lua_list_table_insert_remove()
if !s:lua_53_or_later
throw 'Skipped: Lua version < 5.3'
endif
let l = [1, 2]
lua t = vim.eval('l')
lua table.insert(t, 10)
lua t[#t + 1] = 20
lua table.insert(t, 2, 30)
call assert_equal(l, [1, 30, 2, 10, 20])
lua table.remove(t, 2)
call assert_equal(l, [1, 2, 10, 20])
lua t[3] = nil
call assert_equal(l, [1, 2, 20])
lua removed_value = table.remove(t, 3)
call assert_equal(luaeval('removed_value'), 20)
lua t = nil
lua removed_value = nil
unlet l
endfunc
" Test l() i.e. iterator on list
func Test_lua_list_iter()
lua l = vim.list():add('foo'):add('bar')
lua str = ''
lua for v in l() do str = str .. v end
call assert_equal('foobar', luaeval('str'))
lua str, l = nil
endfunc
func Test_lua_recursive_list()
lua l = vim.list():add(1):add(2)
lua l = l:add(l)
call assert_equal(1, luaeval('l[1]'))
call assert_equal(2, luaeval('l[2]'))
call assert_equal(1, luaeval('l[3][1]'))
call assert_equal(2, luaeval('l[3][2]'))
call assert_equal(1, luaeval('l[3][3][1]'))
call assert_equal(2, luaeval('l[3][3][2]'))
call assert_equal('[1, 2, [...]]', string(luaeval('l')))
call assert_match('^list: \%(0x\)\?\x\+$', luaeval('tostring(l)'))
call assert_equal(luaeval('tostring(l)'), luaeval('tostring(l[3])'))
call assert_equal(luaeval('l'), luaeval('l[3]'))
call assert_equal(luaeval('l'), luaeval('l[3][3]'))
lua l = nil
endfunc
func Test_lua_dict()
call assert_equal({}, luaeval('vim.dict()'))
let d = {}
lua d = vim.eval('d')
lua d[0] = 123
lua d[1] = "abc"
lua d[2] = true
lua d[3] = false
lua d[4] = vim.eval("[1, 2, 3]")
lua d[5] = vim.eval("{'a':1, 'b':2, 'c':3}")
call assert_equal({'0':123, '1':'abc', '2':v:true, '3':v:false, '4': [1, 2, 3], '5': {'a':1, 'b':2, 'c':3}}, d)
call assert_equal(6, luaeval('#d'))
call assert_match('^dict: \%(0x\)\?\x\+$', luaeval('tostring(d)'))
call assert_equal('abc', luaeval('d[1]'))
call assert_equal(v:null, luaeval('d[22]'))
lua d[0] = 124
lua d[4] = nil
call assert_equal({'0':124, '1':'abc', '2':v:true, '3':v:false, '5': {'a':1, 'b':2, 'c':3}}, d)
lockvar 1 d
call assert_fails('lua d[6] = 1', '[string "vim chunk"]:1: dict is locked')
unlockvar d
" Error case
lua d = {}
lua d[''] = 10
call assert_fails("let t = luaeval('vim.dict(d)')",
\ s:lua_53_or_later
\ ? '[string "luaeval"]:1: table has empty key'
\ : 'table has empty key')
let d = {}
lua x = vim.eval('d')
call assert_fails("lua x[''] = 10", '[string "vim chunk"]:1: empty key')
lua x['a'] = nil
call assert_equal({}, d)
" cannot assign funcrefs in the global scope
lua x = vim.eval('g:')
call assert_fails("lua x['min'] = vim.funcref('max')",
\ '[string "vim chunk"]:1: cannot assign funcref to builtin scope')
lua d = nil
endfunc
func Test_lua_dict_table()
lua t = {key1 = 'x', key2 = 3.14, key3 = true, key4 = false}
call assert_equal({'key1': 'x', 'key2': 3.14, 'key3': v:true, 'key4': v:false},
\ luaeval('vim.dict(t)'))
" Same example as in :help lua-vim.
lua t = {math.pi, false, say = 'hi'}
" FIXME: commented out as it currently does not work as documented:
" Expected {'say': 'hi'}
" but got {'1': 3.141593, '2': v:false, 'say': 'hi'}
" Is the documentation or the code wrong?
"call assert_equal({'say' : 'hi'}, luaeval('vim.dict(t)'))
lua t = nil
call assert_fails('lua vim.dict(1)', '[string "vim chunk"]:1: table expected, got number')
call assert_fails('lua vim.dict("x")', '[string "vim chunk"]:1: table expected, got string')
call assert_fails('lua vim.dict(print)', '[string "vim chunk"]:1: table expected, got function')
call assert_fails('lua vim.dict(true)', '[string "vim chunk"]:1: table expected, got boolean')
endfunc
" Test d() i.e. iterator on dictionary
func Test_lua_dict_iter()
let d = {'a': 1, 'b':2}
lua d = vim.eval('d')
lua str = ''
lua for k,v in d() do str = str .. k ..':' .. v .. ',' end
call assert_equal('a:1,b:2,', luaeval('str'))
lua str, d = nil
endfunc
func Test_lua_blob()
call assert_equal(0z, luaeval('vim.blob("")'))
call assert_equal(0z31326162, luaeval('vim.blob("12ab")'))
call assert_equal(0z00010203, luaeval('vim.blob("\000\001\002\003")'))
call assert_equal(0z8081FEFF, luaeval('vim.blob("\128\129\254\255")'))
lua b = vim.blob("\000\000\000\000")
call assert_equal(0z00000000, luaeval('b'))
call assert_equal(4, luaeval('#b'))
lua b[0], b[1], b[2], b[3] = 1, 32, 256, 0xff
call assert_equal(0z012000ff, luaeval('b'))
lua b[4] = string.byte("z", 1)
call assert_equal(0z012000ff.7a, luaeval('b'))
call assert_equal(5, luaeval('#b'))
call assert_fails('lua b[#b+1] = 0x80', '[string "vim chunk"]:1: index out of range')
lua b:add("12ab")
call assert_equal(0z012000ff.7a313261.62, luaeval('b'))
call assert_equal(9, luaeval('#b'))
call assert_fails('lua b:add(nil)', '[string "vim chunk"]:1: string expected, got nil')
call assert_fails('lua b:add(true)', '[string "vim chunk"]:1: string expected, got boolean')
call assert_fails('lua b:add({})', '[string "vim chunk"]:1: string expected, got table')
lua b = nil
let b = 0z0102
lua lb = vim.eval('b')
let n = luaeval('lb[1]')
call assert_equal(2, n)
let n = luaeval('lb[6]')
call assert_equal(v:null, n)
if s:lua_543
let msg = "[string \"luaeval\"]:1: method 'xyz' is not callable (a nil value)"
elseif s:lua_53_or_later
let msg = "[string \"luaeval\"]:1: attempt to call a nil value (method 'xyz')"
else
let msg = "[string \"luaeval\"]:1: attempt to call method 'xyz' (a nil value)"
endif
call assert_fails('let x = luaeval("lb:xyz(3)")', msg)
let y = luaeval("lb[{}]")
call assert_equal(v:null, y)
lockvar b
call assert_fails('lua lb[1] = 2', '[string "vim chunk"]:1: blob is locked')
call assert_fails('lua lb:add("12")', '[string "vim chunk"]:1: blob is locked')
" Error cases
lua t = {}
call assert_fails('lua b = vim.blob(t)',
\ '[string "vim chunk"]:1: string expected, got table')
endfunc
def Vim9Test(Callback: func())
Callback()
enddef
func Test_call_lua_func_from_vim9_func()
" this only tests that Vim doesn't crash
lua << EOF
vim.fn.Vim9Test(function () print('Hello') end)
EOF
endfunc
func Test_lua_funcref()
function I(x)
return a:x
endfunction
let R = function('I')
lua i1 = vim.funcref"I"
lua i2 = vim.eval"R"
lua msg = "funcref|test|" .. (#i2(i1) == #i1(i2) and "OK" or "FAIL")
lua msg = vim.funcref"tr"(msg, "|", " ")
call assert_equal("funcref test OK", luaeval('msg'))
" Error cases
call assert_fails('lua f1 = vim.funcref("")',
\ '[string "vim chunk"]:1: invalid function name: ')
call assert_fails('lua f1 = vim.funcref("10")',
\ '[string "vim chunk"]:1: invalid function name: 10')
let fname = test_null_string()
call assert_fails('lua f1 = vim.funcref(fname)',
\ "[string \"vim chunk\"]:1: bad argument #1 to 'funcref' (string expected, got nil)")
call assert_fails('lua vim.funcref("abc")()',
\ ['E117:', '\[string "vim chunk"]:1: cannot call funcref'])
" dict funcref
function Mylen() dict
return len(self.data)
endfunction
let l = [0, 1, 2, 3]
let mydict = {'data': l}
lua d = vim.eval"mydict"
lua d.len = vim.funcref"Mylen" -- assign d as 'self'
lua res = (d.len() == vim.funcref"len"(vim.eval"l")) and "OK" or "FAIL"
call assert_equal("OK", luaeval('res'))
call assert_equal(function('Mylen', {'data': l, 'len': function('Mylen')}), mydict.len)
lua i1, i2, msg, d, res = nil
endfunc
" Test vim.type()
func Test_lua_type()
" The following values are identical to Lua's type function.
call assert_equal('string', luaeval('vim.type("foo")'))
call assert_equal('number', luaeval('vim.type(1)'))
call assert_equal('number', luaeval('vim.type(1.2)'))
call assert_equal('function', luaeval('vim.type(print)'))
call assert_equal('table', luaeval('vim.type({})'))
call assert_equal('boolean', luaeval('vim.type(true)'))
call assert_equal('boolean', luaeval('vim.type(false)'))
call assert_equal('nil', luaeval('vim.type(nil)'))
" The following values are specific to Vim.
call assert_equal('window', luaeval('vim.type(vim.window())'))
call assert_equal('buffer', luaeval('vim.type(vim.buffer())'))
call assert_equal('list', luaeval('vim.type(vim.list())'))
call assert_equal('dict', luaeval('vim.type(vim.dict())'))
call assert_equal('funcref', luaeval('vim.type(vim.funcref("Test_type"))'))
endfunc
" Test vim.open()
func Test_lua_open()
call assert_notmatch('XOpen', execute('ls'))
" Open a buffer XOpen1, but do not jump to it.
lua b = vim.open('XOpen1')
call assert_equal('XOpen1', luaeval('b.name'))
call assert_equal('', bufname('%'))
call assert_match('XOpen1', execute('ls'))
call assert_notequal('XOpen2', bufname('%'))
" Open a buffer XOpen2 and jump to it.
lua b = vim.open('XOpen2')()
call assert_equal('XOpen2', luaeval('b.name'))
call assert_equal('XOpen2', bufname('%'))
lua b = nil
%bwipe!
endfunc
func Test_update_package_paths()
set runtimepath+=./testluaplugin
call assert_equal("hello from lua", luaeval("require('testluaplugin').hello()"))
endfunc
func Vim_func_call_lua_callback(Concat, Cb)
let l:message = a:Concat("hello", "vim")
call a:Cb(l:message)
endfunc
func Test_pass_lua_callback_to_vim_from_lua()
lua pass_lua_callback_to_vim_from_lua_result = ""
call assert_equal("", luaeval("pass_lua_callback_to_vim_from_lua_result"))
lua <<EOF
vim.funcref('Vim_func_call_lua_callback')(
function(greeting, message)
return greeting .. " " .. message
end,
function(message)
pass_lua_callback_to_vim_from_lua_result = message
end)
EOF
call assert_equal("hello vim", luaeval("pass_lua_callback_to_vim_from_lua_result"))
endfunc
func Vim_func_call_metatable_lua_callback(Greet)
return a:Greet("world")
endfunc
func Test_pass_lua_metatable_callback_to_vim_from_lua()
let result = luaeval("vim.funcref('Vim_func_call_metatable_lua_callback')(setmetatable({ space = ' '}, { __call = function(tbl, msg) return 'hello' .. tbl.space .. msg end }) )")
call assert_equal("hello world", result)
endfunc
" Test vim.line()
func Test_lua_line()
new
call setline(1, ['first line', 'second line'])
1
call assert_equal('first line', luaeval('vim.line()'))
2
call assert_equal('second line', luaeval('vim.line()'))
bwipe!
endfunc
" Test vim.beep()
func Test_lua_beep()
call assert_beeps('lua vim.beep()')
endfunc
" Test errors in luaeval()
func Test_luaeval_error()
" Compile error
call assert_fails("call luaeval('-nil')",
\ '[string "luaeval"]:1: attempt to perform arithmetic on a nil value')
call assert_fails("call luaeval(']')",
\ "[string \"luaeval\"]:1: unexpected symbol near ']'")
lua co = coroutine.create(function () print("hi") end)
call assert_fails('let i = luaeval("co")', 'luaeval: cannot convert value')
lua co = nil
call assert_fails('let m = luaeval("{}")', 'luaeval: cannot convert value')
endfunc
" Test :luafile foo.lua
func Test_luafile()
call writefile(["str = 'hello'", "num = 123" ], 'Xlua_file', 'D')
call setfperm('Xlua_file', 'r-xr-xr-x')
luafile Xlua_file
call assert_equal('hello', luaeval('str'))
call assert_equal(123, luaeval('num'))
lua str, num = nil
endfunc
" Test :luafile %
func Test_luafile_percent()
new Xlua_file
append
str, num = 'foo', 321.0
print(string.format('str=%s, num=%d', str, num))
.
w!
luafile %
let msg = split(execute('message'), "\n")[-1]
call assert_equal('str=foo, num=321', msg)
lua str, num = nil
call delete('Xlua_file')
bwipe!
endfunc
" Test :luafile with syntax error
func Test_luafile_error()
new Xlua_file
call writefile(['nil = 0' ], 'Xlua_file', 'D')
call setfperm('Xlua_file', 'r-xr-xr-x')
call assert_fails('luafile Xlua_file', "Xlua_file:1: unexpected symbol near 'nil'")
bwipe!
endfunc
" Test :luafile printing a long string
func Test_luafile_print()
new Xlua_file
let lines =<< trim END
local data = ''
for i = 1, 130 do
data = data .. 'xxxxx asd as as dad sad sad xz cxz czxcxzczxc ad ad asd asd asd asd asd'
end
print(data)
END
call setline(1, lines)
w
luafile %
call delete('Xlua_file')
bwipe!
endfunc
" Test for dealing with strings containing newlines and null character
func Test_lua_string_with_newline()
let x = execute('lua print("Hello\nWorld", 2)')
call assert_equal("\nHello\nWorld 2", x)
new
lua k = vim.buffer(vim.eval('bufnr()'))
lua k:insert("Hello\0World", 0)
call assert_equal(["Hello\nWorld", ''], getline(1, '$'))
close!
endfunc
func Test_lua_set_cursor()
" Check that setting the cursor position works.
new
call setline(1, ['first line', 'second line'])
normal gg
lua << trim EOF
w = vim.window()
w.line = 1
w.col = 5
EOF
call assert_equal([1, 5], [line('.'), col('.')])
" Check that movement after setting cursor position keeps current column.
normal j
call assert_equal([2, 5], [line('.'), col('.')])
endfunc
" Test for various heredoc syntax
func Test_lua_heredoc()
lua << END
vim.command('let s = "A"')
END
lua <<
vim.command('let s ..= "B"')
.
lua << trim END
vim.command('let s ..= "C"')
END
lua << trim
vim.command('let s ..= "D"')
.
lua << trim eof
vim.command('let s ..= "E"')
eof
lua << trimm
vim.command('let s ..= "F"')
trimm
call assert_equal('ABCDEF', s)
endfunc
" Test for adding, accessing and removing global variables using the vim.g
" Lua table
func Test_lua_global_var_table()
" Access global variables with different types of values
let g:Var1 = 10
let g:Var2 = 'Hello'
let g:Var3 = ['a', 'b']
let g:Var4 = #{x: 'edit', y: 'run'}
let g:Var5 = function('min')
call assert_equal(10, luaeval('vim.g.Var1'))
call assert_equal('Hello', luaeval('vim.g.Var2'))
call assert_equal(['a', 'b'], luaeval('vim.g.Var3'))
call assert_equal(#{x: 'edit', y: 'run'}, luaeval('vim.g.Var4'))
call assert_equal(2, luaeval('vim.g.Var5')([5, 9, 2]))
" Access list of dictionaries and dictionary of lists
let g:Var1 = [#{a: 10}, #{b: 20}]
let g:Var2 = #{p: [5, 6], q: [1.1, 2.2]}
call assert_equal([#{a: 10}, #{b: 20}], luaeval('vim.g.Var1'))
call assert_equal(#{p: [5, 6], q: [1.1, 2.2]}, luaeval('vim.g.Var2'))
" Create new global variables with different types of values
unlet g:Var1 g:Var2 g:Var3 g:Var4 g:Var5
lua << trim END
vim.g.Var1 = 34
vim.g.Var2 = 'World'
vim.g.Var3 = vim.list({'#', '$'})
vim.g.Var4 = vim.dict({model='honda', year=2020})
vim.g.Var5 = vim.funcref('max')
END
call assert_equal(34, g:Var1)
call assert_equal('World', g:Var2)
call assert_equal(['#', '$'], g:Var3)
call assert_equal(#{model: 'honda', year: 2020}, g:Var4)
call assert_equal(10, g:Var5([5, 10, 9]))
" Create list of dictionaries and dictionary of lists
unlet g:Var1 g:Var2
lua << trim END
vim.g.Var1 = vim.list({vim.dict({a=10}), vim.dict({b=20})})
vim.g.Var2 = vim.dict({p=vim.list({5, 6}), q=vim.list({1.1, 2.2})})
END
call assert_equal([#{a: 10}, #{b: 20}], luaeval('vim.g.Var1'))
call assert_equal(#{p: [5, 6], q: [1.1, 2.2]}, luaeval('vim.g.Var2'))
" Modify a global variable with a list value or a dictionary value
let g:Var1 = [10, 20]
let g:Var2 = #{one: 'mercury', two: 'mars'}
lua << trim END
vim.g.Var1[2] = nil
vim.g.Var1[3] = 15
vim.g.Var2['two'] = nil
vim.g.Var2['three'] = 'earth'
END
call assert_equal([10, 15], g:Var1)
call assert_equal(#{one: 'mercury', three: 'earth'}, g:Var2)
" Remove global variables with different types of values
let g:Var1 = 10
let g:Var2 = 'Hello'
let g:Var3 = ['a', 'b']
let g:Var4 = #{x: 'edit', y: 'run'}
let g:Var5 = function('min')
lua << trim END
vim.g.Var1 = nil
vim.g.Var2 = nil
vim.g.Var3 = nil
vim.g.Var4 = nil
vim.g.Var5 = nil
END
call assert_false(exists('g:Var1'))
call assert_false(exists('g:Var2'))
call assert_false(exists('g:Var3'))
call assert_false(exists('g:Var4'))
call assert_false(exists('g:Var5'))
" Try to modify and remove a locked global variable
let g:Var1 = 10
lockvar g:Var1
call assert_fails('lua vim.g.Var1 = 20', 'variable is locked')
call assert_fails('lua vim.g.Var1 = nil', 'variable is locked')
unlockvar g:Var1
let g:Var2 = [7, 14]
lockvar 0 g:Var2
lua vim.g.Var2[2] = nil
lua vim.g.Var2[3] = 21
call assert_fails('lua vim.g.Var2 = nil', 'variable is locked')
call assert_equal([7, 21], g:Var2)
lockvar 1 g:Var2
call assert_fails('lua vim.g.Var2[2] = nil', 'list is locked')
call assert_fails('lua vim.g.Var2[3] = 21', 'list is locked')
unlockvar g:Var2
let g:TestFunc = function('len')
call assert_fails('lua vim.g.func = vim.g.TestFunc', ['E704:', 'Couldn''t add to dictionary'])
unlet g:TestFunc
" Attempt to access a non-existing global variable
call assert_equal(v:null, luaeval('vim.g.NonExistingVar'))
lua vim.g.NonExisting = nil
unlet! g:Var1 g:Var2 g:Var3 g:Var4 g:Var5
endfunc
" Test for accessing and modifying predefined vim variables using the vim.v
" Lua table
func Test_lua_predefined_var_table()
call assert_equal(v:progpath, luaeval('vim.v.progpath'))
let v:errmsg = 'SomeError'
call assert_equal('SomeError', luaeval('vim.v.errmsg'))
lua vim.v.errmsg = 'OtherError'
call assert_equal('OtherError', v:errmsg)
lua vim.v.errmsg = 42
call assert_equal('42', v:errmsg)
call assert_fails('lua vim.v.errmsg = nil', 'variable is fixed')
let v:oldfiles = ['one', 'two']
call assert_equal(['one', 'two'], luaeval('vim.v.oldfiles'))
lua vim.v.oldfiles = vim.list({})
call assert_equal([], v:oldfiles)
call assert_fails('lua vim.v.oldfiles = "a"',
\ 'Setting v:oldfiles to value with wrong type')
call assert_equal([], v:oldfiles)
call assert_equal(v:null, luaeval('vim.v.null'))
call assert_fails('lua vim.v.argv[1] = nil', 'list is locked')
call assert_fails('lua vim.v.newvar = 1', 'Dictionary is locked')
new
call setline(1, ' foo foo foo')
/foo
call assert_equal([0, 1, 2, 0, 2], getcurpos())
call assert_equal(1, v:searchforward)
normal! n
call assert_equal([0, 1, 6, 0, 6], getcurpos())
lua vim.v.searchforward = 0
call assert_equal(0, v:searchforward)
normal! n
call assert_equal([0, 1, 2, 0, 2], getcurpos())
lua vim.v.searchforward = 1
call assert_equal(1, v:searchforward)
normal! n
call assert_equal([0, 1, 6, 0, 6], getcurpos())
bwipe!
endfunc
" Test for adding, accessing and modifying window-local variables using the
" vim.w Lua table
func Test_lua_window_var_table()
" Access window variables with different types of values
new
let w:wvar1 = 10
let w:wvar2 = 'edit'
let w:wvar3 = 3.14
let w:wvar4 = 0zdeadbeef
let w:wvar5 = ['a', 'b']
let w:wvar6 = #{action: 'run'}
call assert_equal(10, luaeval('vim.w.wvar1'))
call assert_equal('edit', luaeval('vim.w.wvar2'))
call assert_equal(3.14, luaeval('vim.w.wvar3'))
call assert_equal(0zdeadbeef, luaeval('vim.w.wvar4'))
call assert_equal(['a', 'b'], luaeval('vim.w.wvar5'))
call assert_equal(#{action: 'run'}, luaeval('vim.w.wvar6'))
call assert_equal(v:null, luaeval('vim.w.NonExisting'))
" modify a window variable
lua vim.w.wvar2 = 'paste'
call assert_equal('paste', w:wvar2)
" change the type stored in a variable
let w:wvar2 = [1, 2]
lua vim.w.wvar2 = vim.dict({a=10, b=20})
call assert_equal(#{a: 10, b: 20}, w:wvar2)
" create a new window variable
lua vim.w.wvar7 = vim.dict({a=vim.list({1, 2}), b=20})
call assert_equal(#{a: [1, 2], b: 20}, w:wvar7)
" delete a window variable
lua vim.w.wvar2 = nil
call assert_false(exists('w:wvar2'))
new
call assert_equal(v:null, luaeval('vim.w.wvar1'))
call assert_equal(v:null, luaeval('vim.w.wvar2'))
%bw!
endfunc
" Test for adding, accessing and modifying buffer-local variables using the
" vim.b Lua table
func Test_lua_buffer_var_table()
" Access buffer variables with different types of values
let b:bvar1 = 10
let b:bvar2 = 'edit'
let b:bvar3 = 3.14
let b:bvar4 = 0zdeadbeef
let b:bvar5 = ['a', 'b']
let b:bvar6 = #{action: 'run'}
call assert_equal(10, luaeval('vim.b.bvar1'))
call assert_equal('edit', luaeval('vim.b.bvar2'))
call assert_equal(3.14, luaeval('vim.b.bvar3'))
call assert_equal(0zdeadbeef, luaeval('vim.b.bvar4'))
call assert_equal(['a', 'b'], luaeval('vim.b.bvar5'))
call assert_equal(#{action: 'run'}, luaeval('vim.b.bvar6'))
call assert_equal(v:null, luaeval('vim.b.NonExisting'))
" modify a buffer variable
lua vim.b.bvar2 = 'paste'
call assert_equal('paste', b:bvar2)
" change the type stored in a variable
let b:bvar2 = [1, 2]
lua vim.b.bvar2 = vim.dict({a=10, b=20})
call assert_equal(#{a: 10, b: 20}, b:bvar2)
" create a new buffer variable
lua vim.b.bvar7 = vim.dict({a=vim.list({1, 2}), b=20})
call assert_equal(#{a: [1, 2], b: 20}, b:bvar7)
" delete a buffer variable
lua vim.b.bvar2 = nil
call assert_false(exists('b:bvar2'))
new
call assert_equal(v:null, luaeval('vim.b.bvar1'))
call assert_equal(v:null, luaeval('vim.b.bvar2'))
%bw!
endfunc
" Test for adding, accessing and modifying tabpage-local variables using the
" vim.t Lua table
func Test_lua_tabpage_var_table()
" Access tabpage variables with different types of values
let t:tvar1 = 10
let t:tvar2 = 'edit'
let t:tvar3 = 3.14
let t:tvar4 = 0zdeadbeef
let t:tvar5 = ['a', 'b']
let t:tvar6 = #{action: 'run'}
call assert_equal(10, luaeval('vim.t.tvar1'))
call assert_equal('edit', luaeval('vim.t.tvar2'))
call assert_equal(3.14, luaeval('vim.t.tvar3'))
call assert_equal(0zdeadbeef, luaeval('vim.t.tvar4'))
call assert_equal(['a', 'b'], luaeval('vim.t.tvar5'))
call assert_equal(#{action: 'run'}, luaeval('vim.t.tvar6'))
call assert_equal(v:null, luaeval('vim.t.NonExisting'))
" modify a tabpage variable
lua vim.t.tvar2 = 'paste'
call assert_equal('paste', t:tvar2)
" change the type stored in a variable
let t:tvar2 = [1, 2]
lua vim.t.tvar2 = vim.dict({a=10, b=20})
call assert_equal(#{a: 10, b: 20}, t:tvar2)
" create a new tabpage variable
lua vim.t.tvar7 = vim.dict({a=vim.list({1, 2}), b=20})
call assert_equal(#{a: [1, 2], b: 20}, t:tvar7)
" delete a tabpage variable
lua vim.t.tvar2 = nil
call assert_false(exists('t:tvar2'))
tabnew
call assert_equal(v:null, luaeval('vim.t.tvar1'))
call assert_equal(v:null, luaeval('vim.t.tvar2'))
%bw!
endfunc
" Test for vim.version()
func Test_lua_vim_version()
lua << trim END
vimver = vim.version()
vimver_n = vimver.major * 100 + vimver.minor
END
call assert_equal(v:version, luaeval('vimver_n'))
endfunc
" Test for running multiple commands using vim.command()
func Test_lua_multiple_commands()
lua << trim END
vim.command([[
let Var1 = []
for i in range(3)
let Var1 += [#{name: 'x'}]
endfor
augroup Luagroup
autocmd!
autocmd User Luatest echo 'Hello'
augroup END
]])
END
call assert_equal([{'name': 'x'}, {'name': 'x'}, {'name': 'x'}], Var1)
call assert_true(exists('#Luagroup'))
call assert_true(exists('#Luagroup#User#Luatest'))
augroup Luagroup
autocmd!
augroup END
augroup! Luagroup
endfunc
func Test_lua_debug()
CheckRunVimInTerminal
let buf = RunVimInTerminal('', {'rows': 10})
call term_sendkeys(buf, ":lua debug.debug()\n")
call WaitForAssert({-> assert_equal('lua_debug> ', term_getline(buf, 10))})
call term_sendkeys(buf, "foo = 42\n")
call WaitForAssert({-> assert_equal('lua_debug> foo = 42', term_getline(buf, 9))})
call WaitForAssert({-> assert_equal('lua_debug> ', term_getline(buf, 10))})
call term_sendkeys(buf, "print(foo)\n")
call WaitForAssert({-> assert_equal('lua_debug> print(foo)', term_getline(buf, 8))})
call WaitForAssert({-> assert_equal('42', term_getline(buf, 9))})
call WaitForAssert({-> assert_equal('lua_debug> ', term_getline(buf, 10))})
call term_sendkeys(buf, "-\n")
call WaitForAssert({-> assert_equal("(debug command):1: unexpected symbol near '-'",
\ term_getline(buf, 9))})
call WaitForAssert({-> assert_equal('lua_debug> ', term_getline(buf, 10))})
call term_sendkeys(buf, "cont\n")
call WaitForAssert({-> assert_match(' All$', term_getline(buf, 10))})
" Entering an empty line also exits the debugger.
call term_sendkeys(buf, ":lua debug.debug()\n")
call WaitForAssert({-> assert_equal('lua_debug> ', term_getline(buf, 10))})
call term_sendkeys(buf, "\n")
call WaitForAssert({-> assert_match(' All$', term_getline(buf, 10))})
call StopVimInTerminal(buf)
endfunc
" Test for a crash when a Lua funcref is invoked with parameters from Vim
func Test_lua_funcref_with_params()
let Lua_funcref = luaeval('function(d) local s = "in Lua callback" end')
call Lua_funcref({'a' : 'b'})
call assert_true(v:true)
endfunc
" vim: shiftwidth=2 sts=2 expandtab