1" Tests for Lua. 2 3if !has('lua') 4 finish 5endif 6 7" Check that switching to another buffer does not trigger ml_get error. 8func Test_command_new_no_ml_get_error() 9 new 10 let wincount = winnr('$') 11 call setline(1, ['one', 'two', 'three']) 12 luado vim.command("new") 13 call assert_equal(wincount + 1, winnr('$')) 14 %bwipe! 15endfunc 16 17" Test vim.command() 18func Test_command() 19 new 20 call setline(1, ['one', 'two', 'three']) 21 luado vim.command("1,2d_") 22 call assert_equal(['three'], getline(1, '$')) 23 bwipe! 24endfunc 25 26" Test vim.eval() 27func Test_eval() 28 " lua.eval with a number 29 lua v = vim.eval('123') 30 call assert_equal('number', luaeval('vim.type(v)')) 31 call assert_equal(123.0, luaeval('v')) 32 33 " lua.eval with a string 34 lua v = vim.eval('"abc"') 35 call assert_equal('string', luaeval('vim.type(v)')) 36 call assert_equal('abc', luaeval('v')) 37 38 " lua.eval with a list 39 lua v = vim.eval("['a']") 40 call assert_equal('list', luaeval('vim.type(v)')) 41 call assert_equal(['a'], luaeval('v')) 42 43 " lua.eval with a dict 44 lua v = vim.eval("{'a':'b'}") 45 call assert_equal('dict', luaeval('vim.type(v)')) 46 call assert_equal({'a':'b'}, luaeval('v')) 47 48 call assert_fails('lua v = vim.eval(nil)', 49 \ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got nil)") 50 call assert_fails('lua v = vim.eval(true)', 51 \ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got boolean)") 52 call assert_fails('lua v = vim.eval({})', 53 \ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got table)") 54 call assert_fails('lua v = vim.eval(print)', 55 \ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got function)") 56 call assert_fails('lua v = vim.eval(vim.buffer())', 57 \ "[string \"vim chunk\"]:1: bad argument #1 to 'eval' (string expected, got userdata)") 58 59 lua v = nil 60endfunc 61 62" Test vim.window() 63func Test_window() 64 e Xfoo2 65 new Xfoo1 66 67 " Window 1 (top window) contains Xfoo1 68 " Window 2 (bottom window) contains Xfoo2 69 call assert_equal('Xfoo1', luaeval('vim.window(1):buffer().name')) 70 call assert_equal('Xfoo2', luaeval('vim.window(2):buffer().name')) 71 72 " Window 3 does not exist so vim.window(3) should return nil 73 call assert_equal('nil', luaeval('tostring(vim.window(3))')) 74 75 %bwipe! 76endfunc 77 78" Test vim.window().height 79func Test_window_height() 80 new 81 lua vim.window().height = 2 82 call assert_equal(2, winheight(0)) 83 lua vim.window().height = vim.window().height + 1 84 call assert_equal(3, winheight(0)) 85 bwipe! 86endfunc 87 88" Test vim.window().width 89func Test_window_width() 90 vert new 91 lua vim.window().width = 2 92 call assert_equal(2, winwidth(0)) 93 lua vim.window().width = vim.window().width + 1 94 call assert_equal(3, winwidth(0)) 95 bwipe! 96endfunc 97 98" Test vim.window().line and vim.window.col 99func Test_window_line_col() 100 new 101 call setline(1, ['line1', 'line2', 'line3']) 102 lua vim.window().line = 2 103 lua vim.window().col = 4 104 call assert_equal([0, 2, 4, 0], getpos('.')) 105 lua vim.window().line = vim.window().line + 1 106 lua vim.window().col = vim.window().col - 1 107 call assert_equal([0, 3, 3, 0], getpos('.')) 108 109 call assert_fails('lua vim.window().line = 10', 110 \ '[string "vim chunk"]:1: line out of range') 111 bwipe! 112endfunc 113 114" Test setting the current window 115func Test_window_set_current() 116 new Xfoo1 117 lua w1 = vim.window() 118 new Xfoo2 119 lua w2 = vim.window() 120 121 call assert_equal('Xfoo2', bufname('%')) 122 lua w1() 123 call assert_equal('Xfoo1', bufname('%')) 124 lua w2() 125 call assert_equal('Xfoo2', bufname('%')) 126 127 lua w1, w2 = nil 128 %bwipe! 129endfunc 130 131" Test vim.window().buffer 132func Test_window_buffer() 133 new Xfoo1 134 lua w1 = vim.window() 135 lua b1 = w1.buffer() 136 new Xfoo2 137 lua w2 = vim.window() 138 lua b2 = w2.buffer() 139 140 lua b1() 141 call assert_equal('Xfoo1', bufname('%')) 142 lua b2() 143 call assert_equal('Xfoo2', bufname('%')) 144 145 lua b1, b2, w1, w2 = nil 146 %bwipe! 147endfunc 148 149" Test vim.window():previous() and vim.window():next() 150func Test_window_next_previous() 151 new Xfoo1 152 new Xfoo2 153 new Xfoo3 154 wincmd j 155 156 call assert_equal('Xfoo2', luaeval('vim.window().buffer().name')) 157 call assert_equal('Xfoo1', luaeval('vim.window():next():buffer().name')) 158 call assert_equal('Xfoo3', luaeval('vim.window():previous():buffer().name')) 159 160 %bwipe! 161endfunc 162 163" Test vim.window():isvalid() 164func Test_window_isvalid() 165 new Xfoo 166 lua w = vim.window() 167 call assert_true(luaeval('w:isvalid()')) 168 169 " FIXME: how to test the case when isvalid() returns v:false? 170 " isvalid() gives errors when the window is deleted. Is it a bug? 171 172 lua w = nil 173 bwipe! 174endfunc 175 176" Test vim.buffer() with and without argument 177func Test_buffer() 178 new Xfoo1 179 let bn1 = bufnr('%') 180 new Xfoo2 181 let bn2 = bufnr('%') 182 183 " Test vim.buffer() without argument. 184 call assert_equal('Xfoo2', luaeval("vim.buffer().name")) 185 186 " Test vim.buffer() with string argument. 187 call assert_equal('Xfoo1', luaeval("vim.buffer('Xfoo1').name")) 188 call assert_equal('Xfoo2', luaeval("vim.buffer('Xfoo2').name")) 189 190 " Test vim.buffer() with integer argument. 191 call assert_equal('Xfoo1', luaeval("vim.buffer(" . bn1 . ").name")) 192 call assert_equal('Xfoo2', luaeval("vim.buffer(" . bn2 . ").name")) 193 194 lua bn1, bn2 = nil 195 %bwipe! 196endfunc 197 198" Test vim.buffer().name and vim.buffer().fname 199func Test_buffer_name() 200 new 201 call assert_equal('', luaeval('vim.buffer().name')) 202 call assert_equal('', luaeval('vim.buffer().fname')) 203 bwipe! 204 205 new Xfoo 206 call assert_equal('Xfoo', luaeval('vim.buffer().name')) 207 call assert_equal(expand('%:p'), luaeval('vim.buffer().fname')) 208 bwipe! 209endfunc 210 211" Test vim.buffer().number 212func Test_buffer_number() 213 " All numbers in Lua are floating points number (no integers). 214 call assert_equal(bufnr('%'), float2nr(luaeval('vim.buffer().number'))) 215endfunc 216 217" Test inserting lines in buffer. 218func Test_buffer_insert() 219 new 220 lua vim.buffer()[1] = '3' 221 lua vim.buffer():insert('1', 0) 222 lua vim.buffer():insert('2', 1) 223 lua vim.buffer():insert('4', 10) 224 225 call assert_equal(['1', '2', '3', '4'], getline(1, '$')) 226 bwipe! 227endfunc 228 229" Test deleting line in buffer 230func Test_buffer_delete() 231 new 232 call setline(1, ['1', '2', '3']) 233 lua vim.buffer()[2] = nil 234 call assert_equal(['1', '3'], getline(1, '$')) 235 236 call assert_fails('lua vim.buffer()[3] = nil', 237 \ '[string "vim chunk"]:1: invalid line number') 238 bwipe! 239endfunc 240 241" Test #vim.buffer() i.e. number of lines in buffer 242func Test_buffer_number_lines() 243 new 244 call setline(1, ['a', 'b', 'c']) 245 call assert_equal(3.0, luaeval('#vim.buffer()')) 246 bwipe! 247endfunc 248 249" Test vim.buffer():next() and vim.buffer():previous() 250" Note that these functions get the next or previous buffers 251" but do not switch buffer. 252func Test_buffer_next_previous() 253 new Xfoo1 254 new Xfoo2 255 new Xfoo3 256 b Xfoo2 257 258 lua bn = vim.buffer():next() 259 lua bp = vim.buffer():previous() 260 261 call assert_equal('Xfoo2', luaeval('vim.buffer().name')) 262 call assert_equal('Xfoo1', luaeval('bp.name')) 263 call assert_equal('Xfoo3', luaeval('bn.name')) 264 265 call assert_equal('Xfoo2', bufname('%')) 266 267 lua bn() 268 call assert_equal('Xfoo3', luaeval('vim.buffer().name')) 269 call assert_equal('Xfoo3', bufname('%')) 270 271 lua bp() 272 call assert_equal('Xfoo1', luaeval('vim.buffer().name')) 273 call assert_equal('Xfoo1', bufname('%')) 274 275 lua bn, bp = nil 276 %bwipe! 277endfunc 278 279" Test vim.buffer():isvalid() 280func Test_buffer_isvalid() 281 new Xfoo 282 lua b = vim.buffer() 283 call assert_true(luaeval('b:isvalid()')) 284 285 " FIXME: how to test the case when isvalid() returns v:false? 286 " isvalid() gives errors when the buffer is wiped. Is it a bug? 287 288 lua b = nil 289 bwipe! 290endfunc 291 292func Test_list() 293 call assert_equal([], luaeval('vim.list()')) 294 295 let l = [] 296 lua l = vim.eval('l') 297 lua l:add(123) 298 lua l:add('abc') 299 lua l:add(true) 300 lua l:add(false) 301 lua l:add(vim.eval("[1, 2, 3]")) 302 lua l:add(vim.eval("{'a':1, 'b':2, 'c':3}")) 303 call assert_equal([123.0, 'abc', v:true, v:false, [1, 2, 3], {'a': 1, 'b': 2, 'c': 3}], l) 304 call assert_equal(6.0, luaeval('#l')) 305 call assert_match('^list: \%(0x\)\?\x\+$', luaeval('tostring(l)')) 306 307 lua l[0] = 124 308 lua l[4] = nil 309 lua l:insert('first') 310 lua l:insert('xx', 3) 311 call assert_equal(['first', 124.0, 'abc', 'xx', v:true, v:false, {'a': 1, 'b': 2, 'c': 3}], l) 312 313 lockvar 1 l 314 call assert_fails('lua l:add("x")', '[string "vim chunk"]:1: list is locked') 315 316 lua l = nil 317endfunc 318 319func Test_list_table() 320 " See :help lua-vim 321 " Non-numeric keys should not be used to initialize the list 322 " so say = 'hi' should be ignored. 323 lua t = {3.14, 'hello', false, true, say = 'hi'} 324 call assert_equal([3.14, 'hello', v:false, v:true], luaeval('vim.list(t)')) 325 lua t = nil 326 327 call assert_fails('lua vim.list(1)', '[string "vim chunk"]:1: table expected, got number') 328 call assert_fails('lua vim.list("x")', '[string "vim chunk"]:1: table expected, got string') 329 call assert_fails('lua vim.list(print)', '[string "vim chunk"]:1: table expected, got function') 330 call assert_fails('lua vim.list(true)', '[string "vim chunk"]:1: table expected, got boolean') 331endfunc 332 333" Test l() i.e. iterator on list 334func Test_list_iter() 335 lua l = vim.list():add('foo'):add('bar') 336 lua str = '' 337 lua for v in l() do str = str .. v end 338 call assert_equal('foobar', luaeval('str')) 339 340 lua str, l = nil 341endfunc 342 343func Test_recursive_list() 344 lua l = vim.list():add(1):add(2) 345 lua l = l:add(l) 346 347 call assert_equal(1.0, luaeval('l[0]')) 348 call assert_equal(2.0, luaeval('l[1]')) 349 350 call assert_equal(1.0, luaeval('l[2][0]')) 351 call assert_equal(2.0, luaeval('l[2][1]')) 352 353 call assert_equal(1.0, luaeval('l[2][2][0]')) 354 call assert_equal(2.0, luaeval('l[2][2][1]')) 355 356 call assert_equal('[1.0, 2.0, [...]]', string(luaeval('l'))) 357 358 call assert_match('^list: \%(0x\)\?\x\+$', luaeval('tostring(l)')) 359 call assert_equal(luaeval('tostring(l)'), luaeval('tostring(l[2])')) 360 361 call assert_equal(luaeval('l'), luaeval('l[2]')) 362 call assert_equal(luaeval('l'), luaeval('l[2][2]')) 363 364 lua l = nil 365endfunc 366 367func Test_dict() 368 call assert_equal({}, luaeval('vim.dict()')) 369 370 let d = {} 371 lua d = vim.eval('d') 372 lua d[0] = 123 373 lua d[1] = "abc" 374 lua d[2] = true 375 lua d[3] = false 376 lua d[4] = vim.eval("[1, 2, 3]") 377 lua d[5] = vim.eval("{'a':1, 'b':2, 'c':3}") 378 call assert_equal({'0':123.0, '1':'abc', '2':v:true, '3':v:false, '4': [1, 2, 3], '5': {'a':1, 'b':2, 'c':3}}, d) 379 call assert_equal(6.0, luaeval('#d')) 380 call assert_match('^dict: \%(0x\)\?\x\+$', luaeval('tostring(d)')) 381 382 call assert_equal('abc', luaeval('d[1]')) 383 384 lua d[0] = 124 385 lua d[4] = nil 386 call assert_equal({'0':124.0, '1':'abc', '2':v:true, '3':v:false, '5': {'a':1, 'b':2, 'c':3}}, d) 387 388 lockvar 1 d 389 call assert_fails('lua d[6] = 1', '[string "vim chunk"]:1: dict is locked') 390 391 lua d = nil 392endfunc 393 394func Test_dict_table() 395 lua t = {key1 = 'x', key2 = 3.14, key3 = true, key4 = false} 396 call assert_equal({'key1': 'x', 'key2': 3.14, 'key3': v:true, 'key4': v:false}, 397 \ luaeval('vim.dict(t)')) 398 399 " Same example as in :help lua-vim. 400 lua t = {math.pi, false, say = 'hi'} 401 " FIXME: commented out as it currently does not work as documented: 402 " Expected {'say': 'hi'} 403 " but got {'1': 3.141593, '2': v:false, 'say': 'hi'} 404 " Is the documentation or the code wrong? 405 "call assert_equal({'say' : 'hi'}, luaeval('vim.dict(t)')) 406 lua t = nil 407 408 call assert_fails('lua vim.dict(1)', '[string "vim chunk"]:1: table expected, got number') 409 call assert_fails('lua vim.dict("x")', '[string "vim chunk"]:1: table expected, got string') 410 call assert_fails('lua vim.dict(print)', '[string "vim chunk"]:1: table expected, got function') 411 call assert_fails('lua vim.dict(true)', '[string "vim chunk"]:1: table expected, got boolean') 412endfunc 413 414" Test d() i.e. iterator on dictionary 415func Test_dict_iter() 416 let d = {'a': 1, 'b':2} 417 lua d = vim.eval('d') 418 lua str = '' 419 lua for k,v in d() do str = str .. k ..':' .. v .. ',' end 420 call assert_equal('a:1,b:2,', luaeval('str')) 421 422 lua str, d = nil 423endfunc 424 425func Test_funcref() 426 function I(x) 427 return a:x 428 endfunction 429 let R = function('I') 430 lua i1 = vim.funcref"I" 431 lua i2 = vim.eval"R" 432 lua msg = "funcref|test|" .. (#i2(i1) == #i1(i2) and "OK" or "FAIL") 433 lua msg = vim.funcref"tr"(msg, "|", " ") 434 call assert_equal("funcref test OK", luaeval('msg')) 435 436 " dict funcref 437 function Mylen() dict 438 return len(self.data) 439 endfunction 440 let l = [0, 1, 2, 3] 441 let mydict = {'data': l} 442 lua d = vim.eval"mydict" 443 lua d.len = vim.funcref"Mylen" -- assign d as 'self' 444 lua res = (d.len() == vim.funcref"len"(vim.eval"l")) and "OK" or "FAIL" 445 call assert_equal("OK", luaeval('res')) 446 447 lua i1, i2, msg, d, res = nil 448endfunc 449 450" Test vim.type() 451func Test_type() 452 " The following values are identical to Lua's type function. 453 call assert_equal('string', luaeval('vim.type("foo")')) 454 call assert_equal('number', luaeval('vim.type(1)')) 455 call assert_equal('number', luaeval('vim.type(1.2)')) 456 call assert_equal('function', luaeval('vim.type(print)')) 457 call assert_equal('table', luaeval('vim.type({})')) 458 call assert_equal('boolean', luaeval('vim.type(true)')) 459 call assert_equal('boolean', luaeval('vim.type(false)')) 460 call assert_equal('nil', luaeval('vim.type(nil)')) 461 462 " The following values are specific to Vim. 463 call assert_equal('window', luaeval('vim.type(vim.window())')) 464 call assert_equal('buffer', luaeval('vim.type(vim.buffer())')) 465 call assert_equal('list', luaeval('vim.type(vim.list())')) 466 call assert_equal('dict', luaeval('vim.type(vim.dict())')) 467 call assert_equal('funcref', luaeval('vim.type(vim.funcref("Test_type"))')) 468endfunc 469 470" Test vim.open() 471func Test_open() 472 call assert_notmatch('XOpen', execute('ls')) 473 474 " Open a buffer XOpen1, but do not jump to it. 475 lua b = vim.open('XOpen1') 476 call assert_equal('XOpen1', luaeval('b.name')) 477 call assert_equal('', bufname('%')) 478 479 call assert_match('XOpen1', execute('ls')) 480 call assert_notequal('XOpen2', bufname('%')) 481 482 " Open a buffer XOpen2 and jump to it. 483 lua b = vim.open('XOpen2')() 484 call assert_equal('XOpen2', luaeval('b.name')) 485 call assert_equal('XOpen2', bufname('%')) 486 487 lua b = nil 488 %bwipe! 489endfunc 490 491" Test vim.line() 492func Test_line() 493 new 494 call setline(1, ['first line', 'second line']) 495 1 496 call assert_equal('first line', luaeval('vim.line()')) 497 2 498 call assert_equal('second line', luaeval('vim.line()')) 499 bwipe! 500endfunc 501 502" Test vim.beep() 503func Test_beep() 504 call assert_beeps('lua vim.beep()') 505endfunc 506 507" Test errors in luaeval() 508func Test_luaeval_error() 509 " Compile error 510 call assert_fails("call luaeval('-nil')", 511 \ '[string "luaeval"]:1: attempt to perform arithmetic on a nil value') 512 call assert_fails("call luaeval(']')", 513 \ "[string \"luaeval\"]:1: unexpected symbol near ']'") 514endfunc 515 516" Test :luafile foo.lua 517func Test_luafile() 518 call delete('Xlua_file') 519 call writefile(["str = 'hello'", "num = 123.0" ], 'Xlua_file') 520 call setfperm('Xlua_file', 'r-xr-xr-x') 521 522 luafile Xlua_file 523 call assert_equal('hello', luaeval('str')) 524 call assert_equal(123.0, luaeval('num')) 525 526 lua str, num = nil 527 call delete('Xlua_file') 528endfunc 529 530" Test :luafile % 531func Test_luafile_percent() 532 new Xlua_file 533 append 534 str, num = 'foo', 321.0 535 print(string.format('str=%s, num=%d', str, num)) 536. 537 w! 538 luafile % 539 let msg = split(execute('message'), "\n")[-1] 540 call assert_equal('str=foo, num=321', msg) 541 542 lua str, num = nil 543 call delete('Xlua_file') 544 bwipe! 545endfunc 546 547" Test :luafile with syntax error 548func Test_luafile_error() 549 new Xlua_file 550 call writefile(['nil = 0' ], 'Xlua_file') 551 call setfperm('Xlua_file', 'r-xr-xr-x') 552 553 call assert_fails('luafile Xlua_file', "Xlua_file:1: unexpected symbol near 'nil'") 554 555 call delete('Xlua_file') 556 bwipe! 557endfunc 558 559func Test_set_cursor() 560 " Check that setting the cursor position works. 561 new 562 call setline(1, ['first line', 'second line']) 563 normal gg 564 lua << EOF 565w = vim.window() 566w.line = 1 567w.col = 5 568EOF 569 call assert_equal([1, 5], [line('.'), col('.')]) 570 571 " Check that movement after setting cursor position keeps current column. 572 normal j 573 call assert_equal([2, 5], [line('.'), col('.')]) 574endfunc 575