summaryrefslogtreecommitdiff
path: root/src/testdir/test_expr.vim
blob: 080eee7e10a773778361c77e7d0271d84bd617ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
" Tests for expressions.

source check.vim

func Test_equal()
  let base = {}
  func base.method()
    return 1
  endfunc
  func base.other() dict
    return 1
  endfunc
  let instance = copy(base)
  call assert_true(base.method == instance.method)
  call assert_true([base.method] == [instance.method])
  call assert_true(base.other == instance.other)
  call assert_true([base.other] == [instance.other])

  call assert_false(base.method == base.other)
  call assert_false([base.method] == [base.other])
  call assert_false(base.method == instance.other)
  call assert_false([base.method] == [instance.other])

  call assert_fails('echo base.method > instance.method')
  call assert_equal(0, test_null_function() == function('min'))
  call assert_equal(1, test_null_function() == test_null_function())
  call assert_fails('eval 10 == test_unknown()', 'E685:')
endfunc

func Test_version()
  call assert_true(has('patch-7.4.001'))
  call assert_true(has('patch-7.4.01'))
  call assert_true(has('patch-7.4.1'))
  call assert_true(has('patch-6.9.999'))
  call assert_true(has('patch-7.1.999'))
  call assert_true(has('patch-7.4.123'))

  call assert_false(has('patch-7'))
  call assert_false(has('patch-7.4'))
  call assert_false(has('patch-7.4.'))
  call assert_false(has('patch-9.1.0'))
  call assert_false(has('patch-9.9.1'))
endfunc

func Test_op_trinary()
  call assert_equal('yes', 1 ? 'yes' : 'no')
  call assert_equal('no', 0 ? 'yes' : 'no')
  call assert_equal('no', 'x' ? 'yes' : 'no')
  call assert_equal('yes', '1x' ? 'yes' : 'no')

  call assert_fails('echo [1] ? "yes" : "no"', 'E745:')
  call assert_fails('echo {} ? "yes" : "no"', 'E728:')
endfunc

func Test_op_falsy()
  call assert_equal(v:true, v:true ?? 456)
  call assert_equal(123, 123 ?? 456)
  call assert_equal('yes', 'yes' ?? 456)
  call assert_equal(0z00, 0z00 ?? 456)
  call assert_equal([1], [1] ?? 456)
  call assert_equal(#{one: 1}, #{one: 1} ?? 456)
  if has('float')
    call assert_equal(0.1, 0.1 ?? 456)
  endif

  call assert_equal(456, v:false ?? 456)
  call assert_equal(456, 0 ?? 456)
  call assert_equal(456, '' ?? 456)
  call assert_equal(456, 0z ?? 456)
  call assert_equal(456, [] ?? 456)
  call assert_equal(456, {} ?? 456)
  if has('float')
    call assert_equal(456, 0.0 ?? 456)
  endif
endfunc

func Test_dict()
  let d = {'': 'empty', 'a': 'a', 0: 'zero'}
  call assert_equal('empty', d[''])
  call assert_equal('a', d['a'])
  call assert_equal('zero', d[0])
  call assert_true(has_key(d, ''))
  call assert_true(has_key(d, 'a'))
  call assert_fails("let i = has_key([], 'a')", 'E715:')

  let d[''] = 'none'
  let d['a'] = 'aaa'
  call assert_equal('none', d[''])
  call assert_equal('aaa', d['a'])

  let d[ 'b' ] = 'bbb'
  call assert_equal('bbb', d[ 'b' ])
endfunc

func Test_strgetchar()
  call assert_equal(char2nr('a'), strgetchar('axb', 0))
  call assert_equal(char2nr('x'), 'axb'->strgetchar(1))
  call assert_equal(char2nr('b'), strgetchar('axb', 2))

  call assert_equal(-1, strgetchar('axb', -1))
  call assert_equal(-1, strgetchar('axb', 3))
  call assert_equal(-1, strgetchar('', 0))
  call assert_fails("let c=strgetchar([], 1)", 'E730:')
  call assert_fails("let c=strgetchar('axb', [])", 'E745:')
endfunc

func Test_strcharpart()
  call assert_equal('a', strcharpart('axb', 0, 1))
  call assert_equal('x', 'axb'->strcharpart(1, 1))
  call assert_equal('b', strcharpart('axb', 2, 1))
  call assert_equal('xb', strcharpart('axb', 1))

  call assert_equal('', strcharpart('axb', 1, 0))
  call assert_equal('', strcharpart('axb', 1, -1))
  call assert_equal('', strcharpart('axb', -1, 1))
  call assert_equal('', strcharpart('axb', -2, 2))

  call assert_equal('a', strcharpart('axb', -1, 2))

  call assert_equal('edit', "editor"[-10:3])
endfunc

func Test_getreg_empty_list()
  call assert_equal('', getreg('x'))
  call assert_equal([], getreg('x', 1, 1))
  let x = getreg('x', 1, 1)
  let y = x
  call add(x, 'foo')
  call assert_equal(['foo'], y)
  call assert_fails('call getreg([])', 'E730:')
endfunc

func Test_loop_over_null_list()
  let null_list = test_null_list()
  for i in null_list
    call assert_report('should not get here')
  endfor
endfunc

func Test_setreg_null_list()
  call setreg('x', test_null_list())
endfunc

func Test_special_char()
  " The failure is only visible using valgrind.
  call assert_fails('echo "\<C-">')
endfunc

func Test_method_with_prefix()
  call assert_equal(1, !range(5)->empty())
  call assert_equal([0, 1, 2], --3->range())
  call assert_equal(0, !-3)
  call assert_equal(1, !+-+0)
endfunc

func Test_option_value()
  " boolean
  set bri
  call assert_equal(1, &bri)
  set nobri
  call assert_equal(0, &bri)

  " number
  set ts=1
  call assert_equal(1, &ts)
  set ts=8
  call assert_equal(8, &ts)

  " string
  exe "set cedit=\<Esc>"
  call assert_equal("\<Esc>", &cedit)
  set cpo=
  call assert_equal("", &cpo)
  set cpo=abcdefgi
  call assert_equal("abcdefgi", &cpo)
  set cpo&vim
endfunc

function Test_printf_misc()
  call assert_equal('123', printf('123'))
  call assert_fails("call printf('123', 3)", "E767:")

  call assert_equal('123', printf('%d', 123))
  call assert_equal('123', printf('%i', 123))
  call assert_equal('123', printf('%D', 123))
  call assert_equal('123', printf('%U', 123))
  call assert_equal('173', printf('%o', 123))
  call assert_equal('173', printf('%O', 123))
  call assert_equal('7b', printf('%x', 123))
  call assert_equal('7B', printf('%X', 123))

  call assert_equal('123', printf('%hd', 123))
  call assert_equal('-123', printf('%hd', -123))
  call assert_equal('-1', printf('%hd', 0xFFFF))
  call assert_equal('-1', printf('%hd', 0x1FFFFF))

  call assert_equal('123', printf('%hu', 123))
  call assert_equal('65413', printf('%hu', -123))
  call assert_equal('65535', printf('%hu', 0xFFFF))
  call assert_equal('65535', printf('%hu', 0x1FFFFF))

  call assert_equal('123', printf('%ld', 123))
  call assert_equal('-123', printf('%ld', -123))
  call assert_equal('65535', printf('%ld', 0xFFFF))
  call assert_equal('131071', printf('%ld', 0x1FFFF))

  if has('ebcdic')
    call assert_equal('#', printf('%c', 123))
  else
    call assert_equal('{', printf('%c', 123))
  endif
  call assert_equal('abc', printf('%s', 'abc'))
  call assert_equal('abc', printf('%S', 'abc'))

  call assert_equal('+123', printf('%+d', 123))
  call assert_equal('-123', printf('%+d', -123))
  call assert_equal('+123', printf('%+ d', 123))
  call assert_equal(' 123', printf('% d', 123))
  call assert_equal(' 123', printf('%  d', 123))
  call assert_equal('-123', printf('% d', -123))

  call assert_equal('123', printf('%2d', 123))
  call assert_equal('   123', printf('%6d', 123))
  call assert_equal('000123', printf('%06d', 123))
  call assert_equal('+00123', printf('%+06d', 123))
  call assert_equal(' 00123', printf('% 06d', 123))
  call assert_equal('  +123', printf('%+6d', 123))
  call assert_equal('   123', printf('% 6d', 123))
  call assert_equal('  -123', printf('% 6d', -123))

  " Test left adjusted.
  call assert_equal('123   ', printf('%-6d', 123))
  call assert_equal('+123  ', printf('%-+6d', 123))
  call assert_equal(' 123  ', printf('%- 6d', 123))
  call assert_equal('-123  ', printf('%- 6d', -123))

  call assert_equal('  00123', printf('%7.5d', 123))
  call assert_equal(' -00123', printf('%7.5d', -123))
  call assert_equal(' +00123', printf('%+7.5d', 123))
  " Precision field should not be used when combined with %0
  call assert_equal('  00123', printf('%07.5d', 123))
  call assert_equal(' -00123', printf('%07.5d', -123))

  call assert_equal('  123', printf('%*d', 5, 123))
  call assert_equal('123  ', printf('%*d', -5, 123))
  call assert_equal('00123', printf('%.*d', 5, 123))
  call assert_equal('  123', printf('% *d', 5, 123))
  call assert_equal(' +123', printf('%+ *d', 5, 123))

  call assert_equal('foobar', printf('%.*s',  9, 'foobar'))
  call assert_equal('foo',    printf('%.*s',  3, 'foobar'))
  call assert_equal('',       printf('%.*s',  0, 'foobar'))
  call assert_equal('foobar', printf('%.*s', -1, 'foobar'))

  " Simple quote (thousand grouping char) is ignored.
  call assert_equal('+00123456', printf("%+'09d", 123456))

  " Unrecognized format specifier kept as-is.
  call assert_equal('_123', printf("%_%d", 123))

  " Test alternate forms.
  call assert_equal('0x7b', printf('%#x', 123))
  call assert_equal('0X7B', printf('%#X', 123))
  call assert_equal('0173', printf('%#o', 123))
  call assert_equal('0173', printf('%#O', 123))
  call assert_equal('abc', printf('%#s', 'abc'))
  call assert_equal('abc', printf('%#S', 'abc'))
  call assert_equal('  0173', printf('%#6o', 123))
  call assert_equal(' 00173', printf('%#6.5o', 123))
  call assert_equal('  0173', printf('%#6.2o', 123))
  call assert_equal('  0173', printf('%#6.2o', 123))
  call assert_equal('0173', printf('%#2.2o', 123))

  call assert_equal(' 00123', printf('%6.5d', 123))
  call assert_equal(' 0007b', printf('%6.5x', 123))

  call assert_equal('123', printf('%.2d', 123))
  call assert_equal('0123', printf('%.4d', 123))
  call assert_equal('0000000123', printf('%.10d', 123))
  call assert_equal('123', printf('%.0d', 123))

  call assert_equal('abc', printf('%2s', 'abc'))
  call assert_equal('abc', printf('%2S', 'abc'))
  call assert_equal('abc', printf('%.4s', 'abc'))
  call assert_equal('abc', printf('%.4S', 'abc'))
  call assert_equal('ab', printf('%.2s', 'abc'))
  call assert_equal('ab', printf('%.2S', 'abc'))
  call assert_equal('', printf('%.0s', 'abc'))
  call assert_equal('', printf('%.s', 'abc'))
  call assert_equal(' abc', printf('%4s', 'abc'))
  call assert_equal(' abc', printf('%4S', 'abc'))
  call assert_equal('0abc', printf('%04s', 'abc'))
  call assert_equal('0abc', printf('%04S', 'abc'))
  call assert_equal('abc ', printf('%-4s', 'abc'))
  call assert_equal('abc ', printf('%-4S', 'abc'))

  call assert_equal('🐍', printf('%.2S', '🐍🐍'))
  call assert_equal('', printf('%.1S', '🐍🐍'))

  call assert_equal('1%', printf('%d%%', 1))
endfunc

function Test_printf_float()
  if has('float')
    call assert_equal('1.000000', printf('%f', 1))
    call assert_equal('1.230000', printf('%f', 1.23))
    call assert_equal('1.230000', printf('%F', 1.23))
    call assert_equal('9999999.9', printf('%g', 9999999.9))
    call assert_equal('9999999.9', printf('%G', 9999999.9))
    call assert_equal('1.00000001e7', printf('%.8g', 10000000.1))
    call assert_equal('1.00000001E7', printf('%.8G', 10000000.1))
    call assert_equal('1.230000e+00', printf('%e', 1.23))
    call assert_equal('1.230000E+00', printf('%E', 1.23))
    call assert_equal('1.200000e-02', printf('%e', 0.012))
    call assert_equal('-1.200000e-02', printf('%e', -0.012))
    call assert_equal('0.33', printf('%.2f', 1.0/3.0))
    call assert_equal('  0.33', printf('%6.2f', 1.0/3.0))
    call assert_equal(' -0.33', printf('%6.2f', -1.0/3.0))
    call assert_equal('000.33', printf('%06.2f', 1.0/3.0))
    call assert_equal('-00.33', printf('%06.2f', -1.0/3.0))
    call assert_equal('-00.33', printf('%+06.2f', -1.0/3.0))
    call assert_equal('+00.33', printf('%+06.2f', 1.0/3.0))
    call assert_equal(' 00.33', printf('% 06.2f', 1.0/3.0))
    call assert_equal('000.33', printf('%06.2g', 1.0/3.0))
    call assert_equal('-00.33', printf('%06.2g', -1.0/3.0))
    call assert_equal('0.33', printf('%3.2f', 1.0/3.0))
    call assert_equal('003.33e-01', printf('%010.2e', 1.0/3.0))
    call assert_equal(' 03.33e-01', printf('% 010.2e', 1.0/3.0))
    call assert_equal('+03.33e-01', printf('%+010.2e', 1.0/3.0))
    call assert_equal('-03.33e-01', printf('%010.2e', -1.0/3.0))

    " When precision is 0, the dot should be omitted.
    call assert_equal('  2', printf('%3.f', 7.0/3.0))
    call assert_equal('  2', printf('%3.g', 7.0/3.0))
    call assert_equal('  2e+00', printf('%7.e', 7.0/3.0))

    " Float zero can be signed.
    call assert_equal('+0.000000', printf('%+f', 0.0))
    call assert_equal('0.000000', printf('%f', 1.0/(1.0/0.0)))
    call assert_equal('-0.000000', printf('%f', 1.0/(-1.0/0.0)))
    call assert_equal('0.0', printf('%s', 1.0/(1.0/0.0)))
    call assert_equal('-0.0', printf('%s', 1.0/(-1.0/0.0)))
    call assert_equal('0.0', printf('%S', 1.0/(1.0/0.0)))
    call assert_equal('-0.0', printf('%S', 1.0/(-1.0/0.0)))

    " Float infinity can be signed.
    call assert_equal('inf', printf('%f', 1.0/0.0))
    call assert_equal('-inf', printf('%f', -1.0/0.0))
    call assert_equal('inf', printf('%g', 1.0/0.0))
    call assert_equal('-inf', printf('%g', -1.0/0.0))
    call assert_equal('inf', printf('%e', 1.0/0.0))
    call assert_equal('-inf', printf('%e', -1.0/0.0))
    call assert_equal('INF', printf('%F', 1.0/0.0))
    call assert_equal('-INF', printf('%F', -1.0/0.0))
    call assert_equal('INF', printf('%E', 1.0/0.0))
    call assert_equal('-INF', printf('%E', -1.0/0.0))
    call assert_equal('INF', printf('%E', 1.0/0.0))
    call assert_equal('-INF', printf('%G', -1.0/0.0))
    call assert_equal('+inf', printf('%+f', 1.0/0.0))
    call assert_equal('-inf', printf('%+f', -1.0/0.0))
    call assert_equal(' inf', printf('% f',  1.0/0.0))
    call assert_equal('   inf', printf('%6f', 1.0/0.0))
    call assert_equal('  -inf', printf('%6f', -1.0/0.0))
    call assert_equal('   inf', printf('%6g', 1.0/0.0))
    call assert_equal('  -inf', printf('%6g', -1.0/0.0))
    call assert_equal('  +inf', printf('%+6f', 1.0/0.0))
    call assert_equal('   inf', printf('% 6f', 1.0/0.0))
    call assert_equal('  +inf', printf('%+06f', 1.0/0.0))
    call assert_equal('inf   ', printf('%-6f', 1.0/0.0))
    call assert_equal('-inf  ', printf('%-6f', -1.0/0.0))
    call assert_equal('+inf  ', printf('%-+6f', 1.0/0.0))
    call assert_equal(' inf  ', printf('%- 6f', 1.0/0.0))
    call assert_equal('-INF  ', printf('%-6F', -1.0/0.0))
    call assert_equal('+INF  ', printf('%-+6F', 1.0/0.0))
    call assert_equal(' INF  ', printf('%- 6F', 1.0/0.0))
    call assert_equal('INF   ', printf('%-6G', 1.0/0.0))
    call assert_equal('-INF  ', printf('%-6G', -1.0/0.0))
    call assert_equal('INF   ', printf('%-6E', 1.0/0.0))
    call assert_equal('-INF  ', printf('%-6E', -1.0/0.0))
    call assert_equal('inf', printf('%s', 1.0/0.0))
    call assert_equal('-inf', printf('%s', -1.0/0.0))

    " Test special case where max precision is truncated at 340.
    call assert_equal('1.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', printf('%.330f', 1.0))
    call assert_equal('1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', printf('%.340f', 1.0))
    call assert_equal('1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', printf('%.350f', 1.0))

    " Float nan (not a number) has no sign.
    call assert_equal('nan', printf('%f', sqrt(-1.0)))
    call assert_equal('nan', printf('%f', 0.0/0.0))
    call assert_equal('nan', printf('%f', -0.0/0.0))
    call assert_equal('nan', printf('%g', 0.0/0.0))
    call assert_equal('nan', printf('%e', 0.0/0.0))
    call assert_equal('NAN', printf('%F', 0.0/0.0))
    call assert_equal('NAN', printf('%G', 0.0/0.0))
    call assert_equal('NAN', printf('%E', 0.0/0.0))
    call assert_equal('NAN', printf('%F', -0.0/0.0))
    call assert_equal('NAN', printf('%G', -0.0/0.0))
    call assert_equal('NAN', printf('%E', -0.0/0.0))
    call assert_equal('   nan', printf('%6f', 0.0/0.0))
    call assert_equal('   nan', printf('%06f', 0.0/0.0))
    call assert_equal('nan   ', printf('%-6f', 0.0/0.0))
    call assert_equal('nan   ', printf('%- 6f', 0.0/0.0))
    call assert_equal('nan', printf('%s', 0.0/0.0))
    call assert_equal('nan', printf('%s', -0.0/0.0))
    call assert_equal('nan', printf('%S', 0.0/0.0))
    call assert_equal('nan', printf('%S', -0.0/0.0))

    call assert_fails('echo printf("%f", "a")', 'E807:')
  endif
endfunc

function Test_printf_errors()
  call assert_fails('echo printf("%d", {})', 'E728:')
  call assert_fails('echo printf("%d", [])', 'E745:')
  call assert_fails('echo printf("%d", 1, 2)', 'E767:')
  call assert_fails('echo printf("%*d", 1)', 'E766:')
  call assert_fails('echo printf("%s")', 'E766:')
  if has('float')
    call assert_fails('echo printf("%d", 1.2)', 'E805:')
    call assert_fails('echo printf("%f")')
  endif
endfunc

function Test_max_min_errors()
  call assert_fails('call max(v:true)', 'E712:')
  call assert_fails('call max(v:true)', 'max()')
  call assert_fails('call min(v:true)', 'E712:')
  call assert_fails('call min(v:true)', 'min()')
endfunc

function Test_printf_64bit()
  call assert_equal("123456789012345", printf('%d', 123456789012345))
endfunc

function Test_printf_spec_s()
  " number
  call assert_equal("1234567890", printf('%s', 1234567890))

  " string
  call assert_equal("abcdefgi", printf('%s', "abcdefgi"))

  " float
  if has('float')
    call assert_equal("1.23", printf('%s', 1.23))
  endif

  " list
  let value = [1, 'two', ['three', 4]]
  call assert_equal(string(value), printf('%s', value))

  " dict
  let value = {'key1' : 'value1', 'key2' : ['list', 'value'], 'key3' : {'dict' : 'value'}}
  call assert_equal(string(value), printf('%s', value))

  " funcref
  call assert_equal('printf', printf('%s', 'printf'->function()))

  " partial
  call assert_equal(string(function('printf', ['%s'])), printf('%s', function('printf', ['%s'])))
endfunc

function Test_printf_spec_b()
  call assert_equal("0", printf('%b', 0))
  call assert_equal("00001100", printf('%08b', 12))
  call assert_equal("11111111", printf('%08b', 0xff))
  call assert_equal("   1111011", printf('%10b', 123))
  call assert_equal("0001111011", printf('%010b', 123))
  call assert_equal(" 0b1111011", printf('%#10b', 123))
  call assert_equal("0B01111011", printf('%#010B', 123))
  call assert_equal("1001001100101100000001011010010", printf('%b', 1234567890))
  call assert_equal("11100000100100010000110000011011101111101111001", printf('%b', 123456789012345))
  call assert_equal("1111111111111111111111111111111111111111111111111111111111111111", printf('%b', -1))
endfunc

func Test_function_with_funcref()
  let s:f = function('type')
  let s:fref = function(s:f)
  call assert_equal(v:t_string, s:fref('x'))
  call assert_fails("call function('s:f')", 'E700:')

  call assert_fails("call function('foo()')", 'E475:')
  call assert_fails("call function('foo()')", 'foo()')
  call assert_fails("function('')", 'E129:')
endfunc

func Test_funcref()
  func! One()
    return 1
  endfunc
  let OneByName = function('One')
  let OneByRef = funcref('One')
  func! One()
    return 2
  endfunc
  call assert_equal(2, OneByName())
  call assert_equal(1, OneByRef())
  let OneByRef = 'One'->funcref()
  call assert_equal(2, OneByRef())
  call assert_fails('echo funcref("{")', 'E475:')
  let OneByRef = funcref("One", repeat(["foo"], 20))
  call assert_fails('let OneByRef = funcref("One", repeat(["foo"], 21))', 'E118:')
  call assert_fails('echo function("min") =~ function("min")', 'E694:')
  call assert_fails('echo test_null_function()->funcref()', 'E475: Invalid argument: NULL')
endfunc

func Test_setmatches()
  hi def link 1 Comment
  hi def link 2 PreProc
  let set = [{"group": 1, "pattern": 2, "id": 3, "priority": 4}]
  let exp = [{"group": '1', "pattern": '2', "id": 3, "priority": 4}]
  if has('conceal')
    let set[0]['conceal'] = 5
    let exp[0]['conceal'] = '5'
  endif
  eval set->setmatches()
  call assert_equal(exp, getmatches())
  call assert_fails('let m = setmatches([], [])', 'E745:')
endfunc

func Test_empty_concatenate()
  call assert_equal('b', 'a'[4:0] . 'b')
  call assert_equal('b', 'b' . 'a'[4:0])
endfunc

func Test_broken_number()
  let X = 'bad'
  call assert_fails('echo 1X', 'E15:')
  call assert_fails('echo 0b1X', 'E15:')
  call assert_fails('echo 0b12', 'E15:')
  call assert_fails('echo 0x1X', 'E15:')
  call assert_fails('echo 011X', 'E15:')
  call assert_equal(2, str2nr('2a'))
  call assert_fails('inoremap <Char-0b1z> b', 'E474:')
endfunc

func Test_eval_after_if()
  let s:val = ''
  func SetVal(x)
    let s:val ..= a:x
  endfunc
  if 0 | eval SetVal('a') | endif | call SetVal('b')
  call assert_equal('b', s:val)
endfunc

" Test for command-line completion of expressions
func Test_expr_completion()
  CheckFeature cmdline_compl
  for cmd in [
	\ 'let a = ',
	\ 'const a = ',
	\ 'if',
	\ 'elseif',
	\ 'while',
	\ 'for',
	\ 'echo',
	\ 'echon',
	\ 'execute',
	\ 'echomsg',
	\ 'echoerr',
	\ 'call',
	\ 'return',
	\ 'cexpr',
	\ 'caddexpr',
	\ 'cgetexpr',
	\ 'lexpr',
	\ 'laddexpr',
	\ 'lgetexpr']
    call feedkeys(":" . cmd . " getl\<Tab>\<Home>\"\<CR>", 'xt')
    call assert_equal('"' . cmd . ' getline(', getreg(':'))
  endfor

  " completion for the expression register
  call feedkeys(":\"\<C-R>=float2\t\"\<C-B>\"\<CR>", 'xt')
  call assert_equal('"float2nr("', @=)

  " completion for window local variables
  let w:wvar1 = 10
  let w:wvar2 = 10
  call feedkeys(":echo w:wvar\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo w:wvar1 w:wvar2', @:)
  unlet w:wvar1 w:wvar2

  " completion for tab local variables
  let t:tvar1 = 10
  let t:tvar2 = 10
  call feedkeys(":echo t:tvar\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo t:tvar1 t:tvar2', @:)
  unlet t:tvar1 t:tvar2

  " completion for variables
  let g:tvar1 = 1
  let g:tvar2 = 2
  call feedkeys(":let g:tv\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"let g:tvar1 g:tvar2', @:)
  " completion for variables after a ||
  call feedkeys(":echo 1 || g:tv\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo 1 || g:tvar1 g:tvar2', @:)

  " completion for options
  call feedkeys(":echo &compat\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo &compatible', @:)
  call feedkeys(":echo 1 && &compat\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo 1 && &compatible', @:)
  call feedkeys(":echo &g:equala\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal('"echo &g:equalalways', @:)

  " completion for string
  call feedkeys(":echo \"Hello\\ World\"\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal("\"echo \"Hello\\ World\"\<C-A>", @:)
  call feedkeys(":echo 'Hello World'\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal("\"echo 'Hello World'\<C-A>", @:)

  " completion for command after a |
  call feedkeys(":echo 'Hello' | cwin\<C-A>\<C-B>\"\<CR>", 'xt')
  call assert_equal("\"echo 'Hello' | cwindow", @:)

  " completion for environment variable
  let $X_VIM_TEST_COMPLETE_ENV = 'foo'
  call feedkeys(":let $X_VIM_TEST_COMPLETE_E\<C-A>\<C-B>\"\<CR>", 'tx')
  call assert_match('"let $X_VIM_TEST_COMPLETE_ENV', @:)
  unlet $X_VIM_TEST_COMPLETE_ENV
endfunc

" Test for errors in expression evaluation
func Test_expr_eval_error()
  call assert_fails("let i = 'abc' . []", 'E730:')
  call assert_fails("let l = [] + 10", 'E745:')
  call assert_fails("let v = 10 + []", 'E745:')
  call assert_fails("let v = 10 / []", 'E745:')
  call assert_fails("let v = -{}", 'E728:')
endfunc

func Test_white_in_function_call()
  let text = substitute ( 'some text' , 't' , 'T' , 'g' )
  call assert_equal('some TexT', text)
endfunc

" Test for float value comparison
func Test_float_compare()
  CheckFeature float
  call assert_true(1.2 == 1.2)
  call assert_true(1.0 != 1.2)
  call assert_true(1.2 > 1.0)
  call assert_true(1.2 >= 1.2)
  call assert_true(1.0 < 1.2)
  call assert_true(1.2 <= 1.2)
  call assert_true(+0.0 == -0.0)
  " two NaNs (not a number) are not equal
  call assert_true(sqrt(-4.01) != (0.0 / 0.0))
  " two inf (infinity) are equal
  call assert_true((1.0 / 0) == (2.0 / 0))
  " two -inf (infinity) are equal
  call assert_true(-(1.0 / 0) == -(2.0 / 0))
  " +infinity != -infinity
  call assert_true((1.0 / 0) != -(2.0 / 0))
endfunc

" vim: shiftwidth=2 sts=2 expandtab