1" Tests for the List and Dict types
2
3source vim9.vim
4
5func TearDown()
6  " Run garbage collection after every test
7  call test_garbagecollect_now()
8endfunc
9
10" Tests for List type
11
12" List creation
13func Test_list_create()
14  " Creating List directly with different types
15  let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
16  call assert_equal("[1, 'as''d', [1, 2, function('strlen')], {'a': 1}]", string(l))
17  call assert_equal({'a' : 1}, l[-1])
18  call assert_equal(1, l[-4])
19  let x = 10
20  try
21    let x = l[-5]
22  catch
23    call assert_match('E684:', v:exception)
24  endtry
25  call assert_equal(10, x)
26endfunc
27
28" This was allowed in legacy Vim script
29let s:list_with_spaces = [1 , 2 , 3]
30
31" List slices
32func Test_list_slice()
33  let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
34  call assert_equal([1, 'as''d', [1, 2, function('strlen')], {'a': 1}], l[:])
35  call assert_equal(['as''d', [1, 2, function('strlen')], {'a': 1}], l[1:])
36  call assert_equal([1, 'as''d', [1, 2, function('strlen')]], l[:-2])
37  call assert_equal([1, 'as''d', [1, 2, function('strlen')], {'a': 1}], l[0:8])
38  call assert_equal([], l[8:-1])
39  call assert_equal([], l[0:-10])
40  " perform an operation on a list slice
41  let l = [1, 2, 3]
42  let l[:1] += [1, 2]
43  let l[2:] -= [1]
44  call assert_equal([2, 4, 2], l)
45endfunc
46
47" List identity
48func Test_list_identity()
49  let lines =<< trim END
50      VAR l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
51      VAR ll = l
52      VAR lx = copy(l)
53      call assert_true(l == ll)
54      call assert_false(l isnot ll)
55      call assert_true(l is ll)
56      call assert_true(l == lx)
57      call assert_false(l is lx)
58      call assert_true(l isnot lx)
59  END
60  call CheckLegacyAndVim9Success(lines)
61endfunc
62
63" removing items with :unlet
64func Test_list_unlet()
65  let lines =<< trim END
66      VAR l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
67      unlet l[2]
68      call assert_equal([1, 'as''d', {'a': 1}], l)
69      LET l = range(8)
70      unlet l[: 3]
71      unlet l[1 :]
72      call assert_equal([4], l)
73
74      #" removing items out of range: silently skip items that don't exist
75      LET l = [0, 1, 2, 3]
76      unlet l[2 : 2]
77      call assert_equal([0, 1, 3], l)
78      LET l = [0, 1, 2, 3]
79      unlet l[2 : 3]
80      call assert_equal([0, 1], l)
81      LET l = [0, 1, 2, 3]
82      unlet l[2 : 4]
83      call assert_equal([0, 1], l)
84      LET l = [0, 1, 2, 3]
85      unlet l[2 : 5]
86      call assert_equal([0, 1], l)
87      LET l = [0, 1, 2, 3]
88      unlet l[-2 : 2]
89      call assert_equal([0, 1, 3], l)
90      LET l = [0, 1, 2, 3]
91      unlet l[-3 : 2]
92      call assert_equal([0, 3], l)
93      LET l = [0, 1, 2, 3]
94      unlet l[-4 : 2]
95      call assert_equal([3], l)
96      LET l = [0, 1, 2, 3]
97      unlet l[-5 : 2]
98      call assert_equal([3], l)
99      LET l = [0, 1, 2, 3]
100      unlet l[-6 : 2]
101      call assert_equal([3], l)
102  END
103  call CheckLegacyAndVim9Success(lines)
104
105  let l = [0, 1, 2, 3]
106  unlet l[2:2]
107  call assert_equal([0, 1, 3], l)
108  let l = [0, 1, 2, 3]
109  unlet l[2:3]
110  call assert_equal([0, 1], l)
111
112  let lines =<< trim END
113      VAR l = [0, 1, 2, 3]
114      unlet l[2 : 1]
115  END
116  call CheckLegacyAndVim9Failure(lines, 'E684:')
117
118  let lines =<< trim END
119      VAR l = [0, 1, 2, 3]
120      unlet l[-1 : 2]
121  END
122  call CheckLegacyAndVim9Failure(lines, 'E684:')
123endfunc
124
125" assignment to a list
126func Test_list_assign()
127  let lines =<< trim END
128      VAR l = [0, 1, 2, 3]
129      VAR va = 0
130      VAR vb = 0
131      LET [va, vb] = l[2 : 3]
132      call assert_equal([2, 3], [va, vb])
133  END
134  call CheckLegacyAndVim9Success(lines)
135
136  let lines =<< trim END
137      let l = [0, 1, 2, 3]
138      let [va, vb] = l
139  END
140  call CheckScriptFailure(lines, 'E687:')
141  let lines =<< trim END
142      var l = [0, 1, 2, 3]
143      var va = 0
144      var vb = 0
145      [va, vb] = l
146  END
147  call CheckScriptFailure(['vim9script'] + lines, 'E687:')
148  call CheckDefExecFailure(lines, 'E1093: Expected 2 items but got 4')
149
150  let lines =<< trim END
151      let l = [0, 1, 2, 3]
152      let [va, vb] = l[1:1]
153  END
154  call CheckScriptFailure(lines, 'E688:')
155  let lines =<< trim END
156      var l = [0, 1, 2, 3]
157      var va = 0
158      var vb = 0
159      [va, vb] = l[1 : 1]
160  END
161  call CheckScriptFailure(['vim9script'] + lines, 'E688:')
162  call CheckDefExecFailure(lines, 'E1093: Expected 2 items but got 1')
163endfunc
164
165" test for range assign
166func Test_list_range_assign()
167  let l = [0]
168  let l[:] = [1, 2]
169  call assert_equal([1, 2], l)
170  let l[-4:-1] = [5, 6]
171  call assert_equal([5, 6], l)
172endfunc
173
174" Test removing items in list
175func Test_list_func_remove()
176  let lines =<< trim END
177      #" Test removing 1 element
178      VAR l = [1, 2, 3, 4]
179      call assert_equal(1, remove(l, 0))
180      call assert_equal([2, 3, 4], l)
181
182      LET l = [1, 2, 3, 4]
183      call assert_equal(2, remove(l, 1))
184      call assert_equal([1, 3, 4], l)
185
186      LET l = [1, 2, 3, 4]
187      call assert_equal(4, remove(l, -1))
188      call assert_equal([1, 2, 3], l)
189
190      #" Test removing range of element(s)
191      LET l = [1, 2, 3, 4]
192      call assert_equal([3], remove(l, 2, 2))
193      call assert_equal([1, 2, 4], l)
194
195      LET l = [1, 2, 3, 4]
196      call assert_equal([2, 3], remove(l, 1, 2))
197      call assert_equal([1, 4], l)
198
199      LET l = [1, 2, 3, 4]
200      call assert_equal([2, 3], remove(l, -3, -2))
201      call assert_equal([1, 4], l)
202  END
203  call CheckLegacyAndVim9Success(lines)
204
205  " Test invalid cases
206  let l = [1, 2, 3, 4]
207  call assert_fails("call remove(l, 5)", 'E684:')
208  call assert_fails("call remove(l, 1, 5)", 'E684:')
209  call assert_fails("call remove(l, 3, 2)", 'E16:')
210  call assert_fails("call remove(1, 0)", 'E896:')
211  call assert_fails("call remove(l, l)", 'E745:')
212endfunc
213
214" List add() function
215func Test_list_add()
216  let lines =<< trim END
217      VAR l = []
218      call add(l, 1)
219      call add(l, [2, 3])
220      call add(l, [])
221      call add(l, test_null_list())
222      call add(l, {'k': 3})
223      call add(l, {})
224      call add(l, test_null_dict())
225      call assert_equal([1, [2, 3], [], [], {'k': 3}, {}, {}], l)
226  END
227  call CheckLegacyAndVim9Success(lines)
228
229  " weird legacy behavior
230  call assert_equal(1, add(test_null_list(), 4))
231endfunc
232
233" Tests for Dictionary type
234
235func Test_dict()
236  " Creating Dictionary directly with different types
237  let lines =<< trim END
238      VAR d = {'1': 'asd', 'b': [1, 2, function('strlen')], '-1': {'a': 1}, }
239      call assert_equal("{'1': 'asd', 'b': [1, 2, function('strlen')], '-1': {'a': 1}}", string(d))
240      call assert_equal('asd', d.1)
241      call assert_equal(['-1', '1', 'b'], sort(keys(d)))
242      call assert_equal(['asd', [1, 2, function('strlen')], {'a': 1}], values(d))
243      call extend(d, {3: 33, 1: 99})
244      call extend(d, {'b': 'bbb', 'c': 'ccc'}, "keep")
245      call assert_equal({'c': 'ccc', '1': 99, 'b': [1, 2, function('strlen')], '3': 33, '-1': {'a': 1}}, d)
246  END
247  call CheckLegacyAndVim9Success(lines)
248
249  let d = {001: 'asd', 'b': [1, 2, function('strlen')], -1: {'a': 1},}
250  call assert_equal("{'1': 'asd', 'b': [1, 2, function('strlen')], '-1': {'a': 1}}", string(d))
251
252  let v = []
253  for [key, val] in items(d)
254    call extend(v, [key, val])
255    unlet key val
256  endfor
257  call assert_equal(['1','asd','b',[1, 2, function('strlen')],'-1',{'a': 1}], v)
258
259  call extend(d, {3: 33, 1: 99})
260  call assert_fails("call extend(d, {3:333,4:444}, 'error')", 'E737:')
261
262  " duplicate key
263  call assert_fails("let d = {'k' : 10, 'k' : 20}", 'E721:')
264  " missing comma
265  call assert_fails("let d = {'k' : 10 'k' : 20}", 'E722:')
266  " missing curly brace
267  call assert_fails("let d = {'k' : 10,", 'E723:')
268  " invalid key
269  call assert_fails('let d = #{++ : 10}', 'E15:')
270  " wrong type for key
271  call assert_fails('let d={[] : 10}', 'E730:')
272  " undefined variable as value
273  call assert_fails("let d={'k' : i}", 'E121:')
274endfunc
275
276" This was allowed in legacy Vim script
277let s:dict_with_spaces = {'one' : 1 , 'two' : 2 , 'three' : 3}
278let s:dict_with_spaces_lit = #{one : 1 , two : 2 , three : 3}
279
280" Dictionary identity
281func Test_dict_identity()
282  let lines =<< trim END
283      VAR d = {'1': 'asd', 'b': [1, 2, function('strlen')], -1: {'a': 1}, }
284      VAR dd = d
285      VAR dx = copy(d)
286      call assert_true(d == dd)
287      call assert_false(d isnot dd)
288      call assert_true(d is dd)
289      call assert_true(d == dx)
290      call assert_false(d is dx)
291      call assert_true(d isnot dx)
292  END
293  call CheckLegacyAndVim9Success(lines)
294endfunc
295
296" removing items with :unlet
297func Test_dict_unlet()
298  let lines =<< trim END
299      VAR d = {'b': 'bbb', '1': 99, '3': 33, '-1': {'a': 1}}
300      unlet d.b
301      unlet d[-1]
302      call assert_equal({'1': 99, '3': 33}, d)
303  END
304  call CheckLegacyAndVim9Success(lines)
305endfunc
306
307" manipulating a big Dictionary (hashtable.c has a border of 1000 entries)
308func Test_dict_big()
309  let d = {}
310  for i in range(1500)
311    let d[i] = 3000 - i
312  endfor
313  call assert_equal([3000, 2900, 2001, 1600, 1501], [d[0], d[100], d[999], d[1400], d[1499]])
314  let str = ''
315  try
316    let n = d[1500]
317  catch
318    let str = substitute(v:exception, '\v(.{14}).*( "\d{4}").*', '\1\2', '')
319  endtry
320  call assert_equal('Vim(let):E716: "1500"', str)
321
322  " lookup each items
323  for i in range(1500)
324    call assert_equal(3000 - i, d[i])
325  endfor
326  let i += 1
327
328  " delete even items
329  while i >= 2
330    let i -= 2
331    unlet d[i]
332  endwhile
333  call assert_equal('NONE', get(d, 1500 - 100, 'NONE'))
334  call assert_equal(2999, d[1])
335
336  " delete odd items, checking value, one intentionally wrong
337  let d[33] = 999
338  let i = 1
339  while i < 1500
340   if i != 33
341     call assert_equal(3000 - i, d[i])
342   else
343     call assert_equal(999, d[i])
344   endif
345   unlet d[i]
346   let i += 2
347  endwhile
348  call assert_equal({}, d)
349  unlet d
350endfunc
351
352" Dictionary function
353func Test_dict_func()
354  let d = {}
355  func d.func(a) dict
356    return a:a . len(self.data)
357  endfunc
358  let d.data = [1,2,3]
359  call assert_equal('len: 3', d.func('len: '))
360  let x = d.func('again: ')
361  call assert_equal('again: 3', x)
362  let Fn = d.func
363  call assert_equal('xxx3', Fn('xxx'))
364endfunc
365
366func Test_dict_assign()
367  let d = {}
368  let d.1 = 1
369  let d._ = 2
370  call assert_equal({'1': 1, '_': 2}, d)
371
372  let lines =<< trim END
373      VAR d = {}
374      LET d.a = 1
375      LET d._ = 2
376      call assert_equal({'a': 1, '_': 2}, d)
377  END
378  call CheckLegacyAndVim9Success(lines)
379
380  let lines =<< trim END
381    let n = 0
382    let n.key = 3
383  END
384  call CheckScriptFailure(lines, 'E1203: Dot can only be used on a dictionary: n.key = 3')
385  let lines =<< trim END
386    vim9script
387    var n = 0
388    n.key = 3
389  END
390  call CheckScriptFailure(lines, 'E1203: Dot can only be used on a dictionary: n.key = 3')
391  let lines =<< trim END
392    var n = 0
393    n.key = 3
394  END
395  call CheckDefFailure(lines, 'E1141:')
396endfunc
397
398" Function in script-local List or Dict
399func Test_script_local_dict_func()
400  let g:dict = {}
401  function g:dict.func() dict
402    return 'g:dict.func' . self.foo[1] . self.foo[0]('asdf')
403  endfunc
404  let g:dict.foo = ['-', 2, 3]
405  call insert(g:dict.foo, function('strlen'))
406  call assert_equal('g:dict.func-4', g:dict.func())
407  unlet g:dict
408endfunc
409
410" Test removing items in a dictionary
411func Test_dict_func_remove()
412  let lines =<< trim END
413      VAR d = {1: 'a', 2: 'b', 3: 'c'}
414      call assert_equal('b', remove(d, 2))
415      call assert_equal({1: 'a', 3: 'c'}, d)
416  END
417  call CheckLegacyAndVim9Success(lines)
418
419  let lines =<< trim END
420      VAR d = {1: 'a', 3: 'c'}
421      call remove(d, 1, 2)
422  END
423  call CheckLegacyAndVim9Failure(lines, 'E118:')
424
425  let lines =<< trim END
426      VAR d = {1: 'a', 3: 'c'}
427      call remove(d, 'a')
428  END
429  call CheckLegacyAndVim9Failure(lines, 'E716:')
430
431  let lines =<< trim END
432      let d = {1: 'a', 3: 'c'}
433      call remove(d, [])
434  END
435  call CheckScriptFailure(lines, 'E730:')
436  let lines =<< trim END
437      vim9script
438      var d = {1: 'a', 3: 'c'}
439      call remove(d, [])
440  END
441  call CheckScriptFailure(lines, 'E1220: String or Number required for argument 2')
442  let lines =<< trim END
443      var d = {1: 'a', 3: 'c'}
444      call remove(d, [])
445  END
446  call CheckDefExecFailure(lines, 'E1013: Argument 2: type mismatch, expected string but got list<unknown>')
447endfunc
448
449" Nasty: remove func from Dict that's being called (works)
450func Test_dict_func_remove_in_use()
451  let d = {1:1}
452  func d.func(a)
453    return "a:" . a:a
454  endfunc
455  let expected = 'a:' . string(get(d, 'func'))
456  call assert_equal(expected, d.func(string(remove(d, 'func'))))
457endfunc
458
459func Test_dict_literal_keys()
460  call assert_equal({'one': 1, 'two2': 2, '3three': 3, '44': 4}, #{one: 1, two2: 2, 3three: 3, 44: 4},)
461
462  " why *{} cannot be used for a literal dictionary
463  let blue = 'blue'
464  call assert_equal('6', trim(execute('echo 2 *{blue: 3}.blue')))
465endfunc
466
467" Nasty: deepcopy() dict that refers to itself (fails when noref used)
468func Test_dict_deepcopy()
469  let d = {1:1, 2:2}
470  let l = [4, d, 6]
471  let d[3] = l
472  let dc = deepcopy(d)
473  call assert_fails('call deepcopy(d, 1)', 'E698:')
474  let l2 = [0, l, l, 3]
475  let l[1] = l2
476  let l3 = deepcopy(l2)
477  call assert_true(l3[1] is l3[2])
478  call assert_fails("call deepcopy([1, 2], 2)", 'E1023:')
479endfunc
480
481" Locked variables
482func Test_list_locked_var()
483  let expected = [
484	      \ [['1000-000', 'ppppppF'],
485	      \  ['0000-000', 'ppppppp'],
486	      \  ['0000-000', 'ppppppp']],
487	      \ [['1000-000', 'ppppppF'],
488	      \  ['0000-000', 'ppppppp'],
489	      \  ['0000-000', 'ppppppp']],
490	      \ [['1100-100', 'ppFppFF'],
491	      \  ['0000-000', 'ppppppp'],
492	      \  ['0000-000', 'ppppppp']],
493	      \ [['1110-110', 'pFFpFFF'],
494	      \  ['0010-010', 'pFppFpp'],
495	      \  ['0000-000', 'ppppppp']],
496	      \ [['1111-111', 'FFFFFFF'],
497	      \  ['0011-011', 'FFpFFpp'],
498	      \  ['0000-000', 'ppppppp']]
499	      \ ]
500  for depth in range(5)
501    for u in range(3)
502      unlet! l
503      let l = [0, [1, [2, 3]], {4: 5, 6: {7: 8}}]
504      exe "lockvar " . depth . " l"
505      if u == 1
506        exe "unlockvar l"
507      elseif u == 2
508        exe "unlockvar " . depth . " l"
509      endif
510      let ps = islocked("l").islocked("l[1]").islocked("l[1][1]").islocked("l[1][1][0]").'-'.islocked("l[2]").islocked("l[2]['6']").islocked("l[2]['6'][7]")
511      call assert_equal(expected[depth][u][0], ps, 'depth: ' .. depth)
512      let ps = ''
513      try
514        let l[1][1][0] = 99
515        let ps .= 'p'
516      catch
517        let ps .= 'F'
518      endtry
519      try
520        let l[1][1] = [99]
521        let ps .= 'p'
522      catch
523        let ps .= 'F'
524      endtry
525      try
526        let l[1] = [99]
527        let ps .= 'p'
528      catch
529        let ps .= 'F'
530      endtry
531      try
532        let l[2]['6'][7] = 99
533        let ps .= 'p'
534      catch
535        let ps .= 'F'
536      endtry
537      try
538        let l[2][6] = {99: 99}
539        let ps .= 'p'
540      catch
541        let ps .= 'F'
542      endtry
543      try
544        let l[2] = {99: 99}
545        let ps .= 'p'
546      catch
547        let ps .= 'F'
548      endtry
549      try
550        let l = [99]
551        let ps .= 'p'
552      catch
553        let ps .= 'F'
554      endtry
555      call assert_equal(expected[depth][u][1], ps, 'depth: ' .. depth)
556    endfor
557  endfor
558  call assert_fails("let x=islocked('a b')", 'E488:')
559  let mylist = [1, 2, 3]
560  call assert_fails("let x = islocked('mylist[1:2]')", 'E786:')
561  let mydict = {'k' : 'v'}
562  call assert_fails("let x = islocked('mydict.a')", 'E716:')
563endfunc
564
565" Unletting locked variables
566func Test_list_locked_var_unlet()
567  let expected = [
568	      \ [['1000-000', 'ppppppp'],
569	      \  ['0000-000', 'ppppppp'],
570	      \  ['0000-000', 'ppppppp']],
571	      \ [['1000-000', 'ppFppFp'],
572	      \  ['0000-000', 'ppppppp'],
573	      \  ['0000-000', 'ppppppp']],
574	      \ [['1100-100', 'pFFpFFp'],
575	      \  ['0000-000', 'ppppppp'],
576	      \  ['0000-000', 'ppppppp']],
577	      \ [['1110-110', 'FFFFFFp'],
578	      \  ['0010-010', 'FppFppp'],
579	      \  ['0000-000', 'ppppppp']],
580	      \ [['1111-111', 'FFFFFFp'],
581	      \  ['0011-011', 'FppFppp'],
582	      \  ['0000-000', 'ppppppp']]
583	      \ ]
584
585  for depth in range(5)
586    for u in range(3)
587      unlet! l
588      let l = [0, [1, [2, 3]], {4: 5, 6: {7: 8}}]
589      exe "lockvar " . depth . " l"
590      if u == 1
591        exe "unlockvar l"
592      elseif u == 2
593        exe "unlockvar " . depth . " l"
594      endif
595      let ps = islocked("l").islocked("l[1]").islocked("l[1][1]").islocked("l[1][1][0]").'-'.islocked("l[2]").islocked("l[2]['6']").islocked("l[2]['6'][7]")
596      call assert_equal(expected[depth][u][0], ps, 'depth: ' .. depth)
597      let ps = ''
598      try
599        unlet l[2]['6'][7]
600        let ps .= 'p'
601      catch
602        let ps .= 'F'
603      endtry
604      try
605        unlet l[2][6]
606        let ps .= 'p'
607      catch
608        let ps .= 'F'
609      endtry
610      try
611        unlet l[2]
612        let ps .= 'p'
613      catch
614        let ps .= 'F'
615      endtry
616      try
617        unlet l[1][1][0]
618        let ps .= 'p'
619      catch
620        let ps .= 'F'
621      endtry
622      try
623        unlet l[1][1]
624        let ps .= 'p'
625      catch
626        let ps .= 'F'
627      endtry
628      try
629        unlet l[1]
630        let ps .= 'p'
631      catch
632        let ps .= 'F'
633      endtry
634      try
635        unlet l
636        let ps .= 'p'
637      catch
638        let ps .= 'F'
639      endtry
640      call assert_equal(expected[depth][u][1], ps)
641    endfor
642  endfor
643  " Deleting a list range should fail if the range is locked
644  let l = [1, 2, 3, 4]
645  lockvar l[1:2]
646  call assert_fails('unlet l[1:2]', 'E741:')
647  unlet l
648endfunc
649
650" Locked variables and :unlet or list / dict functions
651
652" No :unlet after lock on dict:
653func Test_dict_lock_unlet()
654  let d = {'a': 99, 'b': 100}
655  lockvar 1 d
656  call assert_fails('unlet d.a', 'E741:')
657endfunc
658
659" unlet after lock on dict item
660func Test_dict_item_lock_unlet()
661  let d = {'a': 99, 'b': 100}
662  lockvar d.a
663  unlet d.a
664  call assert_equal({'b' : 100}, d)
665endfunc
666
667" filter() after lock on dict item
668func Test_dict_lock_filter()
669  let d = {'a': 99, 'b': 100}
670  lockvar d.a
671  call filter(d, 'v:key != "a"')
672  call assert_equal({'b' : 100}, d)
673endfunc
674
675" map() after lock on dict
676func Test_dict_lock_map()
677  let d = {'a': 99, 'b': 100}
678  lockvar 1 d
679  call map(d, 'v:val + 200')
680  call assert_equal({'a' : 299, 'b' : 300}, d)
681endfunc
682
683" No extend() after lock on dict item
684func Test_dict_lock_extend()
685  let d = {'a': 99, 'b': 100}
686  lockvar d.a
687  call assert_fails("call extend(d, {'a' : 123})", 'E741:')
688  call assert_equal({'a': 99, 'b': 100}, d)
689endfunc
690
691" Cannot use += with a locked dict
692func Test_dict_lock_operator()
693  let d = {}
694  lockvar d
695  call assert_fails("let d += {'k' : 10}", 'E741:')
696  unlockvar d
697endfunc
698
699" No remove() of write-protected scope-level variable
700func Tfunc1(this_is_a_long_parameter_name)
701  call assert_fails("call remove(a:, 'this_is_a_long_parameter_name')", 'E742:')
702endfunc
703func Test_dict_scope_var_remove()
704  call Tfunc1('testval')
705endfunc
706
707" No extend() of write-protected scope-level variable
708func Test_dict_scope_var_extend()
709  call assert_fails("call extend(a:, {'this_is_a_long_parameter_name': 1234})", 'E742:')
710endfunc
711
712func Tfunc2(this_is_a_long_parameter_name)
713  call assert_fails("call extend(a:, {'this_is_a_long_parameter_name': 1234})", 'E742:')
714endfunc
715func Test_dict_scope_var_extend_overwrite()
716  call Tfunc2('testval')
717endfunc
718
719" No :unlet of variable in locked scope
720func Test_lock_var_unlet()
721  let b:testvar = 123
722  lockvar 1 b:
723  call assert_fails('unlet b:testvar', 'E741:')
724  unlockvar 1 b:
725  unlet! b:testvar
726endfunc
727
728" No :let += of locked list variable
729func Test_let_lock_list()
730  let l = ['a', 'b', 3]
731  lockvar 1 l
732  call assert_fails("let l += ['x']", 'E741:')
733  call assert_equal(['a', 'b', 3], l)
734
735  unlet l
736  let l = [1, 2, 3, 4]
737  lockvar! l
738  call assert_equal([1, 2, 3, 4], l)
739  unlockvar l[1]
740  call assert_fails('unlet l[0:1]', 'E741:')
741  call assert_equal([1, 2, 3, 4], l)
742  call assert_fails('unlet l[1:2]', 'E741:')
743  call assert_equal([1, 2, 3, 4], l)
744  unlockvar l[1]
745  call assert_fails('let l[0:1] = [0, 1]', 'E741:')
746  call assert_equal([1, 2, 3, 4], l)
747  call assert_fails('let l[1:2] = [0, 1]', 'E741:')
748  call assert_equal([1, 2, 3, 4], l)
749  unlet l
750endfunc
751
752" Locking part of the list
753func Test_let_lock_list_items()
754  let l = [1, 2, 3, 4]
755  lockvar l[2:]
756  call assert_equal(0, islocked('l[0]'))
757  call assert_equal(1, islocked('l[2]'))
758  call assert_equal(1, islocked('l[3]'))
759  call assert_fails('let l[2] = 10', 'E741:')
760  call assert_fails('let l[3] = 20', 'E741:')
761  unlet l
762endfunc
763
764" lockvar/islocked() triggering script autoloading
765func Test_lockvar_script_autoload()
766  let old_rtp = &rtp
767  set rtp+=./sautest
768  lockvar g:footest#x
769  unlockvar g:footest#x
770  call assert_equal(-1, 'g:footest#x'->islocked())
771  call assert_equal(0, exists('g:footest#x'))
772  call assert_equal(1, g:footest#x)
773  let &rtp = old_rtp
774endfunc
775
776" a:000 function argument test
777func s:arg_list_test(...)
778  call assert_fails('let a:000 = [1, 2]', 'E46:')
779  call assert_fails('let a:000[0] = 9', 'E742:')
780  call assert_fails('let a:000[2] = [9, 10]', 'E742:')
781  call assert_fails('let a:000[3] = {9 : 10}', 'E742:')
782
783  " now the tests that should pass
784  let a:000[2][1] = 9
785  call extend(a:000[2], [5, 6])
786  let a:000[3][5] = 8
787  let a:000[3]['a'] = 12
788  call assert_equal([1, 2, [3, 9, 5, 6], {'a': 12, '5': 8}], a:000)
789endfunc
790
791func Test_func_arg_list()
792  call s:arg_list_test(1, 2, [3, 4], {5: 6})
793endfunc
794
795" Tests for reverse(), sort(), uniq()
796func Test_reverse_sort_uniq()
797  let l = ['-0', 'A11', 2, 2, 'xaaa', 4, 'foo', 'foo6', 'foo', [0, 1, 2], 'x8', [0, 1, 2], 1.5]
798  call assert_equal(['-0', 'A11', 2, 'xaaa', 4, 'foo', 'foo6', 'foo', [0, 1, 2], 'x8', [0, 1, 2], 1.5], uniq(copy(l)))
799  call assert_equal([1.5, [0, 1, 2], 'x8', [0, 1, 2], 'foo', 'foo6', 'foo', 4, 'xaaa', 2, 2, 'A11', '-0'], reverse(l))
800  call assert_equal([1.5, [0, 1, 2], 'x8', [0, 1, 2], 'foo', 'foo6', 'foo', 4, 'xaaa', 2, 2, 'A11', '-0'], reverse(reverse(l)))
801  if has('float')
802    call assert_equal(['-0', 'A11', 'foo', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 2, 4, [0, 1, 2], [0, 1, 2]], sort(l))
803    call assert_equal([[0, 1, 2], [0, 1, 2], 4, 2, 2, 1.5, 'xaaa', 'x8', 'foo6', 'foo', 'foo', 'A11', '-0'], reverse(sort(l)))
804    call assert_equal(['-0', 'A11', 'foo', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 2, 4, [0, 1, 2], [0, 1, 2]], sort(reverse(sort(l))))
805    call assert_equal(['-0', 'A11', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 4, [0, 1, 2]], uniq(sort(l)))
806
807    let l = [7, 9, 'one', 18, 12, 22, 'two', 10.0e-16, -1, 'three', 0xff, 0.22, 'four']
808    call assert_equal([-1, 'one', 'two', 'three', 'four', 1.0e-15, 0.22, 7, 9, 12, 18, 22, 255], sort(copy(l), 'n'))
809
810    let l = [7, 9, 18, 12, 22, 10.0e-16, -1, 0xff, 0, -0, 0.22, 'bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', {}, []]
811    call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 1))
812    call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 'i'))
813    call assert_equal(['BAR', 'Bar', 'FOO', 'FOOBAR', 'Foo', 'bar', 'foo', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l)))
814  endif
815
816  call assert_fails('call reverse("")', 'E899:')
817  call assert_fails('call uniq([1, 2], {x, y -> []})', 'E745:')
818  call assert_fails("call sort([1, 2], function('min'), 1)", "E715:")
819  call assert_fails("call sort([1, 2], function('invalid_func'))", "E700:")
820  call assert_fails("call sort([1, 2], function('min'))", "E118:")
821endfunc
822
823" reduce a list or a blob
824func Test_reduce()
825  call assert_equal(1, reduce([], { acc, val -> acc + val }, 1))
826  call assert_equal(10, reduce([1, 3, 5], { acc, val -> acc + val }, 1))
827  call assert_equal(2 * (2 * ((2 * 1) + 2) + 3) + 4, reduce([2, 3, 4], { acc, val -> 2 * acc + val }, 1))
828  call assert_equal('a x y z', ['x', 'y', 'z']->reduce({ acc, val -> acc .. ' ' .. val}, 'a'))
829  call assert_equal(#{ x: 1, y: 1, z: 1 }, ['x', 'y', 'z']->reduce({ acc, val -> extend(acc, { val: 1 }) }, {}))
830  call assert_equal([0, 1, 2, 3], reduce([1, 2, 3], function('add'), [0]))
831
832  let l = ['x', 'y', 'z']
833  call assert_equal(42, reduce(l, function('get'), #{ x: #{ y: #{ z: 42 } } }))
834  call assert_equal(['x', 'y', 'z'], l)
835
836  call assert_equal(1, reduce([1], { acc, val -> acc + val }))
837  call assert_equal('x y z', reduce(['x', 'y', 'z'], { acc, val -> acc .. ' ' .. val }))
838  call assert_equal(120, range(1, 5)->reduce({ acc, val -> acc * val }))
839  call assert_fails("call reduce([], { acc, val -> acc + val })", 'E998: Reduce of an empty List with no initial value')
840
841  call assert_equal(1, reduce(0z, { acc, val -> acc + val }, 1))
842  call assert_equal(1 + 0xaf + 0xbf + 0xcf, reduce(0zAFBFCF, { acc, val -> acc + val }, 1))
843  call assert_equal(2 * (2 * 1 + 0xaf) + 0xbf, 0zAFBF->reduce({ acc, val -> 2 * acc + val }, 1))
844
845  call assert_equal(0xff, reduce(0zff, { acc, val -> acc + val }))
846  call assert_equal(2 * (2 * 0xaf + 0xbf) + 0xcf, reduce(0zAFBFCF, { acc, val -> 2 * acc + val }))
847  call assert_fails("call reduce(0z, { acc, val -> acc + val })", 'E998: Reduce of an empty Blob with no initial value')
848
849  call assert_fails("call reduce({}, { acc, val -> acc + val }, 1)", 'E897:')
850  call assert_fails("call reduce(0, { acc, val -> acc + val }, 1)", 'E897:')
851  call assert_fails("call reduce('', { acc, val -> acc + val }, 1)", 'E897:')
852  call assert_fails("call reduce([1, 2], 'Xdoes_not_exist')", 'E117:')
853  call assert_fails("echo reduce(0z01, { acc, val -> 2 * acc + val }, '')", 'E39:')
854
855  let g:lut = [1, 2, 3, 4]
856  func EvilRemove()
857    call remove(g:lut, 1)
858    return 1
859  endfunc
860  call assert_fails("call reduce(g:lut, { acc, val -> EvilRemove() }, 1)", 'E742:')
861  unlet g:lut
862  delfunc EvilRemove
863
864  call assert_equal(42, reduce(test_null_list(), function('add'), 42))
865  call assert_equal(42, reduce(test_null_blob(), function('add'), 42))
866
867  " should not crash
868  call assert_fails('echo reduce([1], test_null_function())', 'E1132:')
869  call assert_fails('echo reduce([1], test_null_partial())', 'E1132:')
870endfunc
871
872" splitting a string to a List using split()
873func Test_str_split()
874  call assert_equal(['aa', 'bb'], split('  aa  bb '))
875  call assert_equal(['aa', 'bb'], split('  aa  bb  ', '\W\+', 0))
876  call assert_equal(['', 'aa', 'bb', ''], split('  aa  bb  ', '\W\+', 1))
877  call assert_equal(['', '', 'aa', '', 'bb', '', ''], split('  aa  bb  ', '\W', 1))
878  call assert_equal(['aa', '', 'bb'], split(':aa::bb:', ':', 0))
879  call assert_equal(['', 'aa', '', 'bb', ''], split(':aa::bb:', ':', 1))
880  call assert_equal(['aa', '', 'bb', 'cc', ''], split('aa,,bb, cc,', ',\s*', 1))
881  call assert_equal(['a', 'b', 'c'], split('abc', '\zs'))
882  call assert_equal(['', 'a', '', 'b', '', 'c', ''], split('abc', '\zs', 1))
883  call assert_fails("call split('abc', [])", 'E730:')
884  call assert_fails("call split('abc', 'b', [])", 'E745:')
885  call assert_equal(['abc'], split('abc', '\\%('))
886endfunc
887
888" compare recursively linked list and dict
889func Test_listdict_compare()
890  let l = [1, 2, 3, 4]
891  let d = {'1': 1, '2': l, '3': 3}
892  let l[1] = d
893  call assert_true(l == l)
894  call assert_true(d == d)
895  call assert_false(l != deepcopy(l))
896  call assert_false(d != deepcopy(d))
897
898  " comparison errors
899  call assert_fails('echo [1, 2] =~ {}', 'E691:')
900  call assert_fails('echo [1, 2] =~ [1, 2]', 'E692:')
901  call assert_fails('echo {} =~ 5', 'E735:')
902  call assert_fails('echo {} =~ {}', 'E736:')
903endfunc
904
905  " compare complex recursively linked list and dict
906func Test_listdict_compare_complex()
907  let l = []
908  call add(l, l)
909  let dict4 = {"l": l}
910  call add(dict4.l, dict4)
911  let lcopy = deepcopy(l)
912  let dict4copy = deepcopy(dict4)
913  call assert_true(l == lcopy)
914  call assert_true(dict4 == dict4copy)
915endfunc
916
917" Test for extending lists and dictionaries
918func Test_listdict_extend()
919  " Test extend() with lists
920
921  " Pass the same List to extend()
922  let l = [1, 2, 3]
923  call assert_equal([1, 2, 3, 1, 2, 3], extend(l, l))
924  call assert_equal([1, 2, 3, 1, 2, 3], l)
925
926  let l = [1, 2, 3]
927  call assert_equal([1, 2, 3, 4, 5, 6], extend(l, [4, 5, 6]))
928  call assert_equal([1, 2, 3, 4, 5, 6], l)
929
930  let l = [1, 2, 3]
931  call extend(l, [4, 5, 6], 0)
932  call assert_equal([4, 5, 6, 1, 2, 3], l)
933
934  let l = [1, 2, 3]
935  call extend(l, [4, 5, 6], 1)
936  call assert_equal([1, 4, 5, 6, 2, 3], l)
937
938  let l = [1, 2, 3]
939  call extend(l, [4, 5, 6], 3)
940  call assert_equal([1, 2, 3, 4, 5, 6], l)
941
942  let l = [1, 2, 3]
943  call extend(l, [4, 5, 6], -1)
944  call assert_equal([1, 2, 4, 5, 6, 3], l)
945
946  let l = [1, 2, 3]
947  call extend(l, [4, 5, 6], -3)
948  call assert_equal([4, 5, 6, 1, 2,  3], l)
949
950  let l = [1, 2, 3]
951  call assert_fails("call extend(l, [4, 5, 6], 4)", 'E684:')
952  call assert_fails("call extend(l, [4, 5, 6], -4)", 'E684:')
953  if has('float')
954    call assert_fails("call extend(l, [4, 5, 6], 1.2)", 'E805:')
955  endif
956
957  " Test extend() with dictionaries.
958
959  " Pass the same Dict to extend()
960  let d = { 'a': {'b': 'B'}}
961  call extend(d, d)
962  call assert_equal({'a': {'b': 'B'}}, d)
963
964  let d = {'a': 'A', 'b': 'B'}
965  call assert_equal({'a': 'A', 'b': 0, 'c': 'C'}, extend(d, {'b': 0, 'c':'C'}))
966  call assert_equal({'a': 'A', 'b': 0, 'c': 'C'}, d)
967
968  let d = {'a': 'A', 'b': 'B'}
969  call extend(d, {'a': 'A', 'b': 0, 'c': 'C'}, "force")
970  call assert_equal({'a': 'A', 'b': 0, 'c': 'C'}, d)
971
972  let d = {'a': 'A', 'b': 'B'}
973  call extend(d, {'b': 0, 'c':'C'}, "keep")
974  call assert_equal({'a': 'A', 'b': 'B', 'c': 'C'}, d)
975
976  let d = {'a': 'A', 'b': 'B'}
977  call assert_fails("call extend(d, {'b': 0, 'c':'C'}, 'error')", 'E737:')
978  call assert_fails("call extend(d, {'b': 0, 'c':'C'}, 'xxx')", 'E475:')
979  if has('float')
980    call assert_fails("call extend(d, {'b': 0, 'c':'C'}, 1.2)", 'E475:')
981  endif
982  call assert_equal({'a': 'A', 'b': 'B'}, d)
983
984  call assert_fails("call extend([1, 2], 1)", 'E712:')
985  call assert_fails("call extend([1, 2], {})", 'E712:')
986
987  " Extend g: dictionary with an invalid variable name
988  call assert_fails("call extend(g:, {'-!' : 10})", 'E461:')
989
990  " Extend a list with itself.
991  let l = [1, 5, 7]
992  call extend(l, l, 0)
993  call assert_equal([1, 5, 7, 1, 5, 7], l)
994  let l = [1, 5, 7]
995  call extend(l, l, 1)
996  call assert_equal([1, 1, 5, 7, 5, 7], l)
997  let l = [1, 5, 7]
998  call extend(l, l, 2)
999  call assert_equal([1, 5, 1, 5, 7, 7], l)
1000  let l = [1, 5, 7]
1001  call extend(l, l, 3)
1002  call assert_equal([1, 5, 7, 1, 5, 7], l)
1003endfunc
1004
1005func Test_listdict_extendnew()
1006  " Test extendnew() with lists
1007  let l = [1, 2, 3]
1008  call assert_equal([1, 2, 3, 4, 5], extendnew(l, [4, 5]))
1009  call assert_equal([1, 2, 3], l)
1010
1011  " Test extend() with dictionaries.
1012  let d = {'a': {'b': 'B'}}
1013  call assert_equal({'a': {'b': 'B'}, 'c': 'cc'}, extendnew(d, {'c': 'cc'}))
1014  call assert_equal({'a': {'b': 'B'}}, d)
1015endfunc
1016
1017func s:check_scope_dict(x, fixed)
1018  func s:gen_cmd(cmd, x)
1019    return substitute(a:cmd, '\<x\ze:', a:x, 'g')
1020  endfunc
1021
1022  let cmd = s:gen_cmd('let x:foo = 1', a:x)
1023  if a:fixed
1024    call assert_fails(cmd, 'E461:')
1025  else
1026    exe cmd
1027    exe s:gen_cmd('call assert_equal(1, x:foo)', a:x)
1028  endif
1029
1030  let cmd = s:gen_cmd('let x:["bar"] = 2', a:x)
1031  if a:fixed
1032    call assert_fails(cmd, 'E461:')
1033  else
1034    exe cmd
1035    exe s:gen_cmd('call assert_equal(2, x:bar)', a:x)
1036  endif
1037
1038  let cmd = s:gen_cmd('call extend(x:, {"baz": 3})', a:x)
1039  if a:fixed
1040    call assert_fails(cmd, 'E742:')
1041  else
1042    exe cmd
1043    exe s:gen_cmd('call assert_equal(3, x:baz)', a:x)
1044  endif
1045
1046  if a:fixed
1047    if a:x ==# 'a'
1048      call assert_fails('unlet a:x', 'E795:')
1049      call assert_fails('call remove(a:, "x")', 'E742:')
1050    elseif a:x ==# 'v'
1051      call assert_fails('unlet v:count', 'E795:')
1052      call assert_fails('call remove(v:, "count")', 'E742:')
1053    endif
1054  else
1055    exe s:gen_cmd('unlet x:foo', a:x)
1056    exe s:gen_cmd('unlet x:bar', a:x)
1057    exe s:gen_cmd('call remove(x:, "baz")', a:x)
1058  endif
1059
1060  delfunc s:gen_cmd
1061endfunc
1062
1063func Test_scope_dict()
1064  " Test for g:
1065  call s:check_scope_dict('g', v:false)
1066
1067  " Test for s:
1068  call s:check_scope_dict('s', v:false)
1069
1070  " Test for l:
1071  call s:check_scope_dict('l', v:false)
1072
1073  " Test for a:
1074  call s:check_scope_dict('a', v:true)
1075
1076  " Test for b:
1077  call s:check_scope_dict('b', v:false)
1078
1079  " Test for w:
1080  call s:check_scope_dict('w', v:false)
1081
1082  " Test for t:
1083  call s:check_scope_dict('t', v:false)
1084
1085  " Test for v:
1086  call s:check_scope_dict('v', v:true)
1087endfunc
1088
1089" Test for deep nesting of lists (> 100)
1090func Test_deep_nested_list()
1091  let deep_list = []
1092  let l = deep_list
1093  for i in range(102)
1094    let newlist = []
1095    call add(l, newlist)
1096    let l = newlist
1097  endfor
1098  call add(l, 102)
1099
1100  call assert_fails('let m = deepcopy(deep_list)', 'E698:')
1101  call assert_fails('lockvar 110 deep_list', 'E743:')
1102  call assert_fails('unlockvar 110 deep_list', 'E743:')
1103  call assert_fails('let x = execute("echo deep_list")', 'E724:')
1104  call test_garbagecollect_now()
1105  unlet deep_list
1106endfunc
1107
1108" Test for deep nesting of dicts (> 100)
1109func Test_deep_nested_dict()
1110  let deep_dict = {}
1111  let d = deep_dict
1112  for i in range(102)
1113    let newdict = {}
1114    let d.k = newdict
1115    let d = newdict
1116  endfor
1117  let d.k = 'v'
1118
1119  call assert_fails('let m = deepcopy(deep_dict)', 'E698:')
1120  call assert_fails('lockvar 110 deep_dict', 'E743:')
1121  call assert_fails('unlockvar 110 deep_dict', 'E743:')
1122  call assert_fails('let x = execute("echo deep_dict")', 'E724:')
1123  call test_garbagecollect_now()
1124  unlet deep_dict
1125endfunc
1126
1127" List and dict indexing tests
1128func Test_listdict_index()
1129  call assert_fails('echo function("min")[0]', 'E695:')
1130  call assert_fails('echo v:true[0]', 'E909:')
1131  let d = {'k' : 10}
1132  call assert_fails('echo d.', 'E15:')
1133  call assert_fails('echo d[1:2]', 'E719:')
1134  call assert_fails("let v = [4, 6][{-> 1}]", 'E729:')
1135  call assert_fails("let v = range(5)[2:[]]", 'E730:')
1136  call assert_fails("let v = range(5)[2:{-> 2}(]", ['E15:', 'E116:'])
1137  call assert_fails("let v = range(5)[2:3", 'E111:')
1138  call assert_fails("let l = insert([1,2,3], 4, 10)", 'E684:')
1139  call assert_fails("let l = insert([1,2,3], 4, -10)", 'E684:')
1140  call assert_fails("let l = insert([1,2,3], 4, [])", 'E745:')
1141  let l = [1, 2, 3]
1142  call assert_fails("let l[i] = 3", 'E121:')
1143  call assert_fails("let l[1.1] = 4", 'E805:')
1144  call assert_fails("let l[:i] = [4, 5]", 'E121:')
1145  call assert_fails("let l[:3.2] = [4, 5]", 'E805:')
1146  let t = test_unknown()
1147  call assert_fails("echo t[0]", 'E685:')
1148endfunc
1149
1150" Test for a null list
1151func Test_null_list()
1152  let l = test_null_list()
1153  call assert_equal(0, join(test_null_list()))
1154  call assert_equal('', join(l))
1155  call assert_equal(0, len(l))
1156  call assert_equal(1, empty(l))
1157  call assert_fails('let s = join([1, 2], [])', 'E730:')
1158  call assert_equal([], split(test_null_string()))
1159  call assert_equal([], l[:2])
1160  call assert_true([] == l)
1161  call assert_equal('[]', string(l))
1162  call assert_equal(0, sort(test_null_list()))
1163  call assert_equal([], sort(l))
1164  call assert_equal(0, uniq(test_null_list()))
1165  call assert_equal([], uniq(l))
1166  let k = [] + l
1167  call assert_equal([], k)
1168  let k = l + []
1169  call assert_equal([], k)
1170  call assert_equal(0, len(copy(l)))
1171  call assert_equal(0, count(l, 5))
1172  call assert_equal([], deepcopy(l))
1173  call assert_equal(5, get(l, 2, 5))
1174  call assert_equal(-1, index(l, 2, 5))
1175  call assert_equal(0, insert(test_null_list(), 2, -1))
1176  call assert_fails('call insert(l, 2, -1)', 'E684:')
1177  call assert_equal(0, min(l))
1178  call assert_equal(0, max(l))
1179  call assert_equal(0, remove(test_null_list(), 0, 2))
1180  call assert_fails('call remove(l, 0, 2)', 'E684:')
1181  call assert_equal([], repeat(l, 2))
1182  call assert_equal(0, reverse(test_null_list()))
1183  call assert_equal([], reverse(l))
1184  call assert_equal(0, sort(test_null_list()))
1185  call assert_equal([], sort(l))
1186  call assert_equal('[]', string(l))
1187  call assert_fails('call extend(test_null_list(), test_null_list())', 'E1134:')
1188  call assert_equal([], extend(l, l, 0))
1189  lockvar l
1190  call assert_equal(1, islocked('l'))
1191  unlockvar l
1192endfunc
1193
1194" Test for a null dict
1195func Test_null_dict()
1196  call assert_equal(test_null_dict(), test_null_dict())
1197  let d = test_null_dict()
1198  call assert_equal({}, d)
1199  call assert_equal(0, len(d))
1200  call assert_equal(1, empty(d))
1201  call assert_equal(0, items(test_null_dict()))
1202  call assert_equal([], items(d))
1203  call assert_equal(0, keys(test_null_dict()))
1204  call assert_equal([], keys(d))
1205  call assert_equal(0, values(test_null_dict()))
1206  call assert_equal([], values(d))
1207  call assert_false(has_key(d, 'k'))
1208  call assert_equal('{}', string(d))
1209  call assert_fails('let x = d[10]', 'E716:')
1210  call assert_equal({}, {})
1211  call assert_equal(0, len(copy(d)))
1212  call assert_equal(0, count(d, 'k'))
1213  call assert_equal({}, deepcopy(d))
1214  call assert_equal(20, get(d, 'k', 20))
1215  call assert_equal(0, min(d))
1216  call assert_equal(0, max(d))
1217  call assert_equal(0, remove(test_null_dict(), 'k'))
1218  call assert_fails("call remove(d, 'k')", 'E716:')
1219  call assert_equal('{}', string(d))
1220  call assert_fails('call extend(test_null_dict(), test_null_dict())', 'E1133:')
1221  call assert_equal({}, extend(d, d, 'keep'))
1222  lockvar d
1223  call assert_equal(1, islocked('d'))
1224  unlockvar d
1225endfunc
1226
1227" vim: shiftwidth=2 sts=2 expandtab
1228