1" Test various aspects of the Vim9 script language.
2
3source check.vim
4
5" Check that "lines" inside ":def" results in an "error" message.
6func CheckDefFailure(lines, error)
7  call writefile(['def Func()'] + a:lines + ['enddef'], 'Xdef')
8  call assert_fails('so Xdef', a:error, a:lines)
9  call delete('Xdef')
10endfunc
11
12func CheckScriptFailure(lines, error)
13  call writefile(a:lines, 'Xdef')
14  call assert_fails('so Xdef', a:error, a:lines)
15  call delete('Xdef')
16endfunc
17
18def Test_syntax()
19  let var = 234
20  let other: list<string> = ['asdf']
21enddef
22
23func Test_def_basic()
24  def SomeFunc(): string
25    return 'yes'
26  enddef
27  call assert_equal('yes', SomeFunc())
28endfunc
29
30def Test_assignment()
31  let bool1: bool = true
32  assert_equal(v:true, bool1)
33  let bool2: bool = false
34  assert_equal(v:false, bool2)
35
36  let list1: list<string> = ['sdf', 'asdf']
37  let list2: list<number> = [1, 2, 3]
38
39  " TODO: does not work yet
40  " let listS: list<string> = []
41  " let listN: list<number> = []
42
43  let dict1: dict<string> = #{key: 'value'}
44  let dict2: dict<number> = #{one: 1, two: 2}
45enddef
46
47func Test_assignment_failure()
48  call CheckDefFailure(['let var=234'], 'E1004:')
49  call CheckDefFailure(['let var =234'], 'E1004:')
50  call CheckDefFailure(['let var= 234'], 'E1004:')
51
52  call CheckDefFailure(['let true = 1'], 'E1034:')
53  call CheckDefFailure(['let false = 1'], 'E1034:')
54
55  call CheckDefFailure(['let var: list<string> = [123]'], 'expected list<string> but got list<number>')
56  call CheckDefFailure(['let var: list<number> = ["xx"]'], 'expected list<number> but got list<string>')
57
58  call CheckDefFailure(['let var: dict<string> = #{key: 123}'], 'expected dict<string> but got dict<number>')
59  call CheckDefFailure(['let var: dict<number> = #{key: "xx"}'], 'expected dict<number> but got dict<string>')
60
61  call CheckDefFailure(['let var = feedkeys("0")'], 'E1031:')
62  call CheckDefFailure(['let var: number = feedkeys("0")'], 'expected number but got void')
63endfunc
64
65func Test_const()
66  call CheckDefFailure(['const var = 234', 'var = 99'], 'E1018:')
67  call CheckDefFailure(['const one = 234', 'let one = 99'], 'E1017:')
68  call CheckDefFailure(['const two'], 'E1021:')
69endfunc
70
71def Test_block()
72  let outer = 1
73  {
74    let inner = 2
75    assert_equal(1, outer)
76    assert_equal(2, inner)
77  }
78  assert_equal(1, outer)
79enddef
80
81func Test_block_failure()
82  call CheckDefFailure(['{', 'let inner = 1', '}', 'echo inner'], 'E1001:')
83endfunc
84
85def ReturnString(): string
86  return 'string'
87enddef
88
89def ReturnNumber(): number
90  return 123
91enddef
92
93def Test_return_string()
94  assert_equal('string', ReturnString())
95  assert_equal(123, ReturnNumber())
96enddef
97
98func Increment()
99  let g:counter += 1
100endfunc
101
102def Test_call_ufunc_count()
103  g:counter = 1
104  Increment()
105  Increment()
106  Increment()
107  " works with and without :call
108  assert_equal(4, g:counter)
109  call assert_equal(4, g:counter)
110  unlet g:counter
111enddef
112
113def MyVarargs(arg: string, ...rest: list<string>): string
114  let res = arg
115  for s in rest
116    res ..= ',' .. s
117  endfor
118  return res
119enddef
120
121def Test_call_varargs()
122  assert_equal('one', MyVarargs('one'))
123  assert_equal('one,two', MyVarargs('one', 'two'))
124  assert_equal('one,two,three', MyVarargs('one', 'two', 'three'))
125enddef
126
127def Test_return_type_wrong()
128  " TODO: why is ! needed for Mac and FreeBSD?
129  CheckScriptFailure(['def Func(): number', 'return "a"', 'enddef'], 'expected number but got string')
130  CheckScriptFailure(['def Func(): string', 'return 1', 'enddef'], 'expected string but got number')
131  CheckScriptFailure(['def Func(): void', 'return "a"', 'enddef'], 'expected void but got string')
132  CheckScriptFailure(['def Func()', 'return "a"', 'enddef'], 'expected void but got string')
133enddef
134
135def Test_try_catch()
136  let l = []
137  try
138    add(l, '1')
139    throw 'wrong'
140    add(l, '2')
141  catch
142    add(l, v:exception)
143  finally
144    add(l, '3')
145  endtry
146  assert_equal(['1', 'wrong', '3'], l)
147enddef
148
149let s:export_script_lines =<< trim END
150  vim9script
151  let name: string = 'bob'
152  def Concat(arg: string): string
153    return name .. arg
154  enddef
155  let g:result = Concat('bie')
156  let g:localname = name
157
158  export const CONST = 1234
159  export let exported = 9876
160  export def Exported(): string
161    return 'Exported'
162  enddef
163END
164
165def Test_vim9script()
166  let import_script_lines =<< trim END
167    vim9script
168    import {exported, Exported} from './Xexport.vim'
169    g:imported = exported
170    g:imported_func = Exported()
171  END
172
173  writefile(import_script_lines, 'Ximport.vim')
174  writefile(s:export_script_lines, 'Xexport.vim')
175
176  source Ximport.vim
177
178  assert_equal('bobbie', g:result)
179  assert_equal('bob', g:localname)
180  assert_equal(9876, g:imported)
181  assert_equal('Exported', g:imported_func)
182  assert_false(exists('g:name'))
183
184  unlet g:result
185  unlet g:localname
186  unlet g:imported
187  unlet g:imported_func
188  delete('Ximport.vim')
189  delete('Xexport.vim')
190
191  CheckScriptFailure(['scriptversion 2', 'vim9script'], 'E1039:')
192  CheckScriptFailure(['vim9script', 'scriptversion 2'], 'E1040:')
193enddef
194
195def Test_vim9script_call()
196  let lines =<< trim END
197    vim9script
198    let var = ''
199    def MyFunc(arg: string)
200       var = arg
201    enddef
202    MyFunc('foobar')
203    assert_equal('foobar', var)
204
205    let str = 'barfoo'
206    str->MyFunc()
207    assert_equal('barfoo', var)
208
209    let g:value = 'value'
210    g:value->MyFunc()
211    assert_equal('value', var)
212
213    let listvar = []
214    def ListFunc(arg: list<number>)
215       listvar = arg
216    enddef
217    [1, 2, 3]->ListFunc()
218    assert_equal([1, 2, 3], listvar)
219
220    let dictvar = {}
221    def DictFunc(arg: dict<number>)
222       dictvar = arg
223    enddef
224    {'a': 1, 'b': 2}->DictFunc()
225    assert_equal(#{a: 1, b: 2}, dictvar)
226    #{a: 3, b: 4}->DictFunc()
227    assert_equal(#{a: 3, b: 4}, dictvar)
228  END
229  writefile(lines, 'Xcall.vim')
230  source Xcall.vim
231  delete('Xcall.vim')
232enddef
233
234def Test_vim9script_call_fail_decl()
235  let lines =<< trim END
236    vim9script
237    let var = ''
238    def MyFunc(arg: string)
239       let var = 123
240    enddef
241  END
242  writefile(lines, 'Xcall_decl.vim')
243  assert_fails('source Xcall_decl.vim', 'E1054:')
244  delete('Xcall_decl.vim')
245enddef
246
247def Test_vim9script_call_fail_const()
248  let lines =<< trim END
249    vim9script
250    const var = ''
251    def MyFunc(arg: string)
252       var = 'asdf'
253    enddef
254  END
255  writefile(lines, 'Xcall_const.vim')
256  assert_fails('source Xcall_const.vim', 'E46:')
257  delete('Xcall_const.vim')
258enddef
259
260def Test_vim9script_reload()
261  let lines =<< trim END
262    vim9script
263    const var = ''
264    let valone = 1234
265    def MyFunc(arg: string)
266       valone = 5678
267    enddef
268  END
269  let morelines =<< trim END
270    let valtwo = 222
271    export def GetValtwo(): number
272      return valtwo
273    enddef
274  END
275  writefile(lines + morelines, 'Xreload.vim')
276  source Xreload.vim
277  source Xreload.vim
278  source Xreload.vim
279
280  let testlines =<< trim END
281    vim9script
282    def TheFunc()
283      import GetValtwo from './Xreload.vim'
284      assert_equal(222, GetValtwo())
285    enddef
286    TheFunc()
287  END
288  writefile(testlines, 'Ximport.vim')
289  source Ximport.vim
290
291  " test that when not using "morelines" valtwo is still defined
292  " need to source Xreload.vim again, import doesn't reload a script
293  writefile(lines, 'Xreload.vim')
294  source Xreload.vim
295  source Ximport.vim
296
297  " cannot declare a var twice
298  lines =<< trim END
299    vim9script
300    let valone = 1234
301    let valone = 5678
302  END
303  writefile(lines, 'Xreload.vim')
304  assert_fails('source Xreload.vim', 'E1041:')
305
306  delete('Xreload.vim')
307  delete('Ximport.vim')
308enddef
309
310def Test_import_absolute()
311  let import_lines = [
312        \ 'vim9script',
313        \ 'import exported from "' .. escape(getcwd(), '\') .. '/Xexport_abs.vim"',
314        \ 'g:imported_abs = exported',
315        \ ]
316  writefile(import_lines, 'Ximport_abs.vim')
317  writefile(s:export_script_lines, 'Xexport_abs.vim')
318
319  source Ximport_abs.vim
320
321  assert_equal(9876, g:imported_abs)
322  unlet g:imported_abs
323
324  delete('Ximport_abs.vim')
325  delete('Xexport_abs.vim')
326enddef
327
328def Test_import_rtp()
329  let import_lines = [
330        \ 'vim9script',
331        \ 'import exported from "Xexport_rtp.vim"',
332        \ 'g:imported_rtp = exported',
333        \ ]
334  writefile(import_lines, 'Ximport_rtp.vim')
335  mkdir('import')
336  writefile(s:export_script_lines, 'import/Xexport_rtp.vim')
337
338  let save_rtp = &rtp
339  &rtp = getcwd()
340  source Ximport_rtp.vim
341  &rtp = save_rtp
342
343  assert_equal(9876, g:imported_rtp)
344  unlet g:imported_rtp
345
346  delete('Ximport_rtp.vim')
347  delete('import/Xexport_rtp.vim')
348  delete('import', 'd')
349enddef
350
351def Test_fixed_size_list()
352  " will be allocated as one piece of memory, check that changes work
353  let l = [1, 2, 3, 4]
354  l->remove(0)
355  l->add(5)
356  l->insert(99, 1)
357  call assert_equal([2, 99, 3, 4, 5], l)
358enddef
359
360" Test that inside :function a Python function can be defined, :def is not
361" recognized.
362func Test_function_python()
363  CheckFeature python3
364  let py = 'python3'
365  execute py "<< EOF"
366def do_something():
367  return 1
368EOF
369endfunc
370
371
372" vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker
373