summaryrefslogtreecommitdiff
path: root/test/ruby/test_file_exhaustive.rb
blob: 84a6181e895425fae3b2e9a87d70d6edd9ac44cd (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
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
require "test/unit"
require "fileutils"
require "tmpdir"

class TestFileExhaustive < Test::Unit::TestCase
  DRIVE = Dir.pwd[%r'\A(?:[a-z]:|//[^/]+/[^/]+)'i]

  def assert_incompatible_encoding
    d = "\u{3042}\u{3044}".encode("utf-16le")
    assert_raise(Encoding::CompatibilityError) {yield d}
    m = Class.new {define_method(:to_path) {d}}
    assert_raise(Encoding::CompatibilityError) {yield m.new}
  end

  def setup
    @dir = Dir.mktmpdir("rubytest-file")
    @rootdir = "#{DRIVE}/"
    File.chown(-1, Process.gid, @dir)
    @file = make_tmp_filename("file")
    @zerofile = make_tmp_filename("zerofile")
    @nofile = make_tmp_filename("nofile")
    @symlinkfile = make_tmp_filename("symlinkfile")
    @hardlinkfile = make_tmp_filename("hardlinkfile")
    make_file("foo", @file)
    make_file("", @zerofile)
    @time = Time.now
    begin
      File.symlink(@file, @symlinkfile)
    rescue NotImplementedError
      @symlinkfile = nil
    end
    begin
      File.link(@file, @hardlinkfile)
    rescue NotImplementedError, Errno::EINVAL	# EINVAL for Windows Vista
      @hardlinkfile = nil
    end
  end

  def teardown
    GC.start
    FileUtils.remove_entry_secure @dir
  end

  def make_file(content, file = @file)
    open(file, "w") {|fh| fh << content }
  end

  def make_tmp_filename(prefix)
    "#{@dir}/#{prefix}#{File.basename(__FILE__)}.#{$$}.test"
  end

  def test_path
    file = @file

    assert_equal(file, File.open(file) {|f| f.path})
    assert_equal(file, File.path(file))
    o = Object.new
    class << o; self; end.class_eval do
      define_method(:to_path) { file }
    end
    assert_equal(file, File.path(o))
  end

  def assert_integer(n)
    assert_kind_of(Integer, n)
  end

  def assert_integer_or_nil(n)
    msg = ->{"#{n.inspect} is neither Fixnum nor nil."}
    if n
      assert_kind_of(Integer, n, msg)
    else
      assert_nil(n, msg)
    end
  end

  def test_stat
    sleep(@time - Time.now + 1.1)
    make_file("foo", @file + "2")
    fs1, fs2 = File.stat(@file), File.stat(@file + "2")
    assert_nothing_raised do
      assert_equal(0, fs1 <=> fs1)
      assert_equal(-1, fs1 <=> fs2)
      assert_equal(1, fs2 <=> fs1)
      assert_nil(fs1 <=> nil)
      assert_integer(fs1.dev)
      assert_integer_or_nil(fs1.rdev)
      assert_integer_or_nil(fs1.dev_major)
      assert_integer_or_nil(fs1.dev_minor)
      assert_integer_or_nil(fs1.rdev_major)
      assert_integer_or_nil(fs1.rdev_minor)
      assert_integer(fs1.ino)
      assert_integer(fs1.mode)
      unless /emx|mswin|mingw/ =~ RUBY_PLATFORM
        # on Windows, nlink is always 1. but this behavior will be changed
        # in the future.
        assert_equal(@hardlinkfile ? 2 : 1, fs1.nlink)
      end
      assert_integer(fs1.uid)
      assert_integer(fs1.gid)
      assert_equal(3, fs1.size)
      assert_integer_or_nil(fs1.blksize)
      assert_integer_or_nil(fs1.blocks)
      assert_kind_of(Time, fs1.atime)
      assert_kind_of(Time, fs1.mtime)
      assert_kind_of(Time, fs1.ctime)
      assert_kind_of(String, fs1.inspect)
    end
    assert_raise(Errno::ENOENT) { File.stat(@nofile) }
    assert_kind_of(File::Stat, File.open(@file) {|f| f.stat})
    assert_raise(Errno::ENOENT) { File.lstat(@nofile) }
    assert_kind_of(File::Stat, File.open(@file) {|f| f.lstat})
  end

  def test_stat_drive_root
    assert_nothing_raised { File.stat(DRIVE + "/") }
    assert_nothing_raised { File.stat(DRIVE + "/.") }
    assert_nothing_raised { File.stat(DRIVE + "/..") }
    assert_raise(Errno::ENOENT) { File.stat(DRIVE + "/...") }
    # want to test the root of empty drive, but there is no method to test it...
  end if DRIVE

  def test_stat_dotted_prefix
    Dir.mktmpdir do |dir|
      prefix = File.join(dir, "...a")
      Dir.mkdir(prefix)
      assert_file.exist?(prefix)

      assert_nothing_raised { File.stat(prefix) }

      Dir.chdir(dir) do
        assert_nothing_raised { File.stat(File.basename(prefix)) }
      end
    end
  end if /mswin|mingw|cygwin/ =~ RUBY_PLATFORM

  def test_directory_p
    assert_file.directory?(@dir)
    assert_file.not_directory?(@dir+"/...")
    assert_file.not_directory?(@file)
    assert_file.not_directory?(@nofile)
  end

  def test_pipe_p ## xxx
    assert_file.not_pipe?(@dir)
    assert_file.not_pipe?(@file)
    assert_file.not_pipe?(@nofile)
  end

  def test_symlink_p
    assert_file.not_symlink?(@dir)
    assert_file.not_symlink?(@file)
    assert_file.symlink?(@symlinkfile) if @symlinkfile
    assert_file.not_symlink?(@hardlinkfile) if @hardlinkfile
    assert_file.not_symlink?(@nofile)
  end

  def test_socket_p ## xxx
    assert_file.not_socket?(@dir)
    assert_file.not_socket?(@file)
    assert_file.not_socket?(@nofile)
  end

  def test_blockdev_p ## xxx
    assert_file.not_blockdev?(@dir)
    assert_file.not_blockdev?(@file)
    assert_file.not_blockdev?(@nofile)
  end

  def test_chardev_p ## xxx
    assert_file.not_chardev?(@dir)
    assert_file.not_chardev?(@file)
    assert_file.not_chardev?(@nofile)
  end

  def test_exist_p
    assert_file.exist?(@dir)
    assert_file.exist?(@file)
    assert_file.not_exist?(@nofile)
  end

  def test_readable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0200, @file)
    assert_file.not_readable?(@file)
    File.chmod(0600, @file)
    assert_file.readable?(@file)
    assert_file.not_readable?(@nofile)
  end

  def test_readable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0200, @file)
    assert_file.not_readable_real?(@file)
    File.chmod(0600, @file)
    assert_file.readable_real?(@file)
    assert_file.not_readable_real?(@nofile)
  end

  def test_world_readable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0006, @file)
    assert_file.world_readable?(@file)
    File.chmod(0060, @file)
    assert_file.not_world_readable?(@file)
    File.chmod(0600, @file)
    assert_file.not_world_readable?(@file)
    assert_file.not_world_readable?(@nofile)
  end

  def test_writable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0400, @file)
    assert_file.not_writable?(@file)
    File.chmod(0600, @file)
    assert_file.writable?(@file)
    assert_file.not_writable?(@nofile)
  end

  def test_writable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0400, @file)
    assert_file.not_writable_real?(@file)
    File.chmod(0600, @file)
    assert_file.writable_real?(@file)
    assert_file.not_writable_real?(@nofile)
  end

  def test_world_writable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0006, @file)
    assert_file.world_writable?(@file)
    File.chmod(0060, @file)
    assert_file.not_world_writable?(@file)
    File.chmod(0600, @file)
    assert_file.not_world_writable?(@file)
    assert_file.not_world_writable?(@nofile)
  end

  def test_executable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0100, @file)
    assert_file.executable?(@file)
    File.chmod(0600, @file)
    assert_file.not_executable?(@file)
    assert_file.not_executable?(@nofile)
  end

  def test_executable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0100, @file)
    assert_file.executable_real?(@file)
    File.chmod(0600, @file)
    assert_file.not_executable_real?(@file)
    assert_file.not_executable_real?(@nofile)
  end

  def test_file_p
    assert_file.not_file?(@dir)
    assert_file.file?(@file)
    assert_file.not_file?(@nofile)
  end

  def test_zero_p
    assert_nothing_raised { File.zero?(@dir) }
    assert_file.not_zero?(@file)
    assert_file.zero?(@zerofile)
    assert_file.not_zero?(@nofile)
  end

  def test_size_p
    assert_nothing_raised { File.size?(@dir) }
    assert_equal(3, File.size?(@file))
    assert_file.not_size?(@zerofile)
    assert_file.not_size?(@nofile)
  end

  def test_owned_p ## xxx
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    assert_file.owned?(@file)
    assert_file.grpowned?(@file)
  end

  def test_suid_sgid_sticky ## xxx
    assert_file.not_setuid?(@file)
    assert_file.not_setgid?(@file)
    assert_file.not_sticky?(@file)
  end

  def test_path_identical_p
    assert_file.identical?(@file, @file)
    assert_file.not_identical?(@file, @zerofile)
    assert_file.not_identical?(@file, @nofile)
    assert_file.not_identical?(@nofile, @file)
  end

  def test_io_identical_p
    open(@file) {|f|
      assert_file.identical?(f, f)
      assert_file.identical?(@file, f)
      assert_file.identical?(f, @file)
    }
  end

  def test_closed_io_identical_p
    io = open(@file) {|f| f}
    assert_raise(IOError) {
      File.identical?(@file, io)
    }
  end

  def test_s_size
    assert_integer(File.size(@dir))
    assert_equal(3, File.size(@file))
    assert_equal(0, File.size(@zerofile))
    assert_raise(Errno::ENOENT) { File.size(@nofile) }
  end

  def test_ftype
    assert_equal("directory", File.ftype(@dir))
    assert_equal("file", File.ftype(@file))
    assert_equal("link", File.ftype(@symlinkfile)) if @symlinkfile
    assert_equal("file", File.ftype(@hardlinkfile)) if @hardlinkfile
    assert_raise(Errno::ENOENT) { File.ftype(@nofile) }
  end

  def test_atime
    t1 = File.atime(@file)
    t2 = File.open(@file) {|f| f.atime}
    assert_kind_of(Time, t1)
    assert_kind_of(Time, t2)
    assert_equal(t1, t2)
    assert_raise(Errno::ENOENT) { File.atime(@nofile) }
  end

  def test_mtime
    t1 = File.mtime(@file)
    t2 = File.open(@file) {|f| f.mtime}
    assert_kind_of(Time, t1)
    assert_kind_of(Time, t2)
    assert_equal(t1, t2)
    assert_raise(Errno::ENOENT) { File.mtime(@nofile) }
  end

  def test_ctime
    t1 = File.ctime(@file)
    t2 = File.open(@file) {|f| f.ctime}
    assert_kind_of(Time, t1)
    assert_kind_of(Time, t2)
    assert_equal(t1, t2)
    assert_raise(Errno::ENOENT) { File.ctime(@nofile) }
  end

  def test_chmod
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    assert_equal(1, File.chmod(0444, @file))
    assert_equal(0444, File.stat(@file).mode % 01000)
    assert_equal(0, File.open(@file) {|f| f.chmod(0222)})
    assert_equal(0222, File.stat(@file).mode % 01000)
    File.chmod(0600, @file)
    assert_raise(Errno::ENOENT) { File.chmod(0600, @nofile) }
  end

  def test_lchmod
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    assert_equal(1, File.lchmod(0444, @file))
    assert_equal(0444, File.stat(@file).mode % 01000)
    File.lchmod(0600, @file)
    assert_raise(Errno::ENOENT) { File.lchmod(0600, @nofile) }
  rescue NotImplementedError
  end

  def test_chown ## xxx
  end

  def test_lchown ## xxx
  end

  def test_symlink
    return unless @symlinkfile
    assert_equal("link", File.ftype(@symlinkfile))
    assert_raise(Errno::EEXIST) { File.symlink(@file, @file) }
  end

  def test_utime
    t = Time.local(2000)
    File.utime(t + 1, t + 2, @zerofile)
    assert_equal(t + 1, File.atime(@zerofile))
    assert_equal(t + 2, File.mtime(@zerofile))
  end

  def test_hardlink
    return unless @hardlinkfile
    assert_equal("file", File.ftype(@hardlinkfile))
    assert_raise(Errno::EEXIST) { File.link(@file, @file) }
  end

  def test_readlink
    return unless @symlinkfile
    assert_equal(@file, File.readlink(@symlinkfile))
    assert_raise(Errno::EINVAL) { File.readlink(@file) }
    assert_raise(Errno::ENOENT) { File.readlink(@nofile) }
    if fs = Encoding.find("filesystem")
      assert_equal(fs, File.readlink(@symlinkfile).encoding)
    end
  rescue NotImplementedError
  end

  def test_readlink_long_path
    return unless @symlinkfile
    bug9157 = '[ruby-core:58592] [Bug #9157]'
    assert_separately(["-", @symlinkfile, bug9157], <<-"end;")
      symlinkfile, bug9157 = *ARGV
      100.step(1000, 100) do |n|
        File.unlink(symlinkfile)
        link = "foo"*n
        begin
          File.symlink(link, symlinkfile)
        rescue Errno::ENAMETOOLONG
          break
        end
        assert_equal(link, File.readlink(symlinkfile), bug9157)
      end
    end;
  end

  def test_unlink
    assert_equal(1, File.unlink(@file))
    make_file("foo", @file)
    assert_raise(Errno::ENOENT) { File.unlink(@nofile) }
  end

  def test_rename
    assert_equal(0, File.rename(@file, @nofile))
    assert_file.not_exist?(@file)
    assert_file.exist?(@nofile)
    assert_equal(0, File.rename(@nofile, @file))
    assert_raise(Errno::ENOENT) { File.rename(@nofile, @file) }
  end

  def test_umask
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    prev = File.umask(0777)
    assert_equal(0777, File.umask)
    open(@nofile, "w") { }
    assert_equal(0, File.stat(@nofile).mode % 01000)
    File.unlink(@nofile)
    assert_equal(0777, File.umask(prev))
    assert_raise(ArgumentError) { File.umask(0, 1, 2) }
  end

  def test_expand_path
    assert_equal(@file, File.expand_path(File.basename(@file), File.dirname(@file)))
    case RUBY_PLATFORM
    when /cygwin|mingw|mswin|bccwin/
      assert_equal(@file, File.expand_path(@file + " "))
      assert_equal(@file, File.expand_path(@file + "."))
      assert_equal(@file, File.expand_path(@file + "::$DATA"))
      assert_match(/\Ac:\//i, File.expand_path('c:'), '[ruby-core:31591]')
      assert_match(/\Ac:\//i, File.expand_path('c:foo', 'd:/bar'))
      assert_match(/\Ae:\//i, File.expand_path('e:foo', 'd:/bar'))
      assert_match(%r'\Ac:/bar/foo\z'i, File.expand_path('c:foo', 'c:/bar'))
    when /darwin/
      ["\u{feff}", *"\u{2000}"..."\u{2100}"].each do |c|
        file = @file + c
        begin
          open(file) {}
        rescue
          assert_equal(file, File.expand_path(file), c.dump)
        else
          assert_equal(@file, File.expand_path(file), c.dump)
        end
      end
    end
    if DRIVE
      assert_match(%r"\Az:/foo\z"i, File.expand_path('/foo', "z:/bar"))
      assert_match(%r"\A//host/share/foo\z"i, File.expand_path('/foo', "//host/share/bar"))
      assert_match(%r"\A#{DRIVE}/foo\z"i, File.expand_path('/foo'))
    else
      assert_equal("/foo", File.expand_path('/foo'))
    end
  end

  def test_expand_path_memsize
    bug9934 = '[ruby-core:63114] [Bug #9934]'
    require "objspace"
    path = File.expand_path("/foo")
    assert_operator(ObjectSpace.memsize_of(path), :<=, path.bytesize + GC::INTERNAL_CONSTANTS[:RVALUE_SIZE], bug9934)
    path = File.expand_path("/a"*25)
    assert_equal(path.bytesize+1 + GC::INTERNAL_CONSTANTS[:RVALUE_SIZE], ObjectSpace.memsize_of(path), bug9934)
  end

  def test_expand_path_encoding
    drive = (DRIVE ? 'C:' : '')
    if Encoding.find("filesystem") == Encoding::CP1251
      a = "#{drive}/\u3042\u3044\u3046\u3048\u304a".encode("cp932")
    else
      a = "#{drive}/\u043f\u0440\u0438\u0432\u0435\u0442".encode("cp1251")
    end
    assert_equal(a, File.expand_path(a))
    a = "#{drive}/\225\\\\"
    if File::ALT_SEPARATOR == '\\'
      [%W"cp437 #{drive}/\225", %W"cp932 #{drive}/\225\\"]
    else
      [["cp437", a], ["cp932", a]]
    end.each do |cp, expected|
      assert_equal(expected.force_encoding(cp), File.expand_path(a.dup.force_encoding(cp)), cp)
    end

    path = "\u3042\u3044\u3046\u3048\u304a".encode("EUC-JP")
    assert_equal("#{Dir.pwd}/#{path}".encode("CP932"), File.expand_path(path).encode("CP932"))

    path = "\u3042\u3044\u3046\u3048\u304a".encode("CP51932")
    assert_equal("#{Dir.pwd}/#{path}", File.expand_path(path))

    assert_incompatible_encoding {|d| File.expand_path(d)}
  end

  def test_expand_path_encoding_filesystem
    home = ENV["HOME"]
    ENV["HOME"] = "#{DRIVE}/UserHome"

    path = "~".encode("US-ASCII")
    dir = "C:/".encode("IBM437")
    fs = Encoding.find("filesystem")

    assert_equal fs, File.expand_path(path).encoding
    assert_equal fs, File.expand_path(path, dir).encoding
  ensure
    ENV["HOME"] = home
  end

  UnknownUserHome = "~foo_bar_baz_unknown_user_wahaha".freeze

  def test_expand_path_home
    assert_kind_of(String, File.expand_path("~")) if ENV["HOME"]
    assert_raise(ArgumentError) { File.expand_path(UnknownUserHome) }
    assert_raise(ArgumentError) { File.expand_path(UnknownUserHome, "/") }
    begin
      bug3630 = '[ruby-core:31537]'
      home = ENV["HOME"]
      home_drive = ENV["HOMEDRIVE"]
      home_path = ENV["HOMEPATH"]
      user_profile = ENV["USERPROFILE"]
      ENV["HOME"] = nil
      ENV["HOMEDRIVE"] = nil
      ENV["HOMEPATH"] = nil
      ENV["USERPROFILE"] = nil
      assert_raise(ArgumentError) { File.expand_path("~") }
      ENV["HOME"] = "~"
      assert_raise(ArgumentError, bug3630) { File.expand_path("~") }
      ENV["HOME"] = "."
      assert_raise(ArgumentError, bug3630) { File.expand_path("~") }
    ensure
      ENV["HOME"] = home
      ENV["HOMEDRIVE"] = home_drive
      ENV["HOMEPATH"] = home_path
      ENV["USERPROFILE"] = user_profile
    end
  end

  def test_expand_path_home_dir_string
    home = ENV["HOME"]
    new_home = "#{DRIVE}/UserHome"
    ENV["HOME"] = new_home
    bug8034 = "[ruby-core:53168]"

    assert_equal File.join(new_home, "foo"), File.expand_path("foo", "~"), bug8034
    assert_equal File.join(new_home, "bar", "foo"), File.expand_path("foo", "~/bar"), bug8034

    assert_raise(ArgumentError) { File.expand_path(".", UnknownUserHome) }
    assert_nothing_raised(ArgumentError) { File.expand_path("#{DRIVE}/", UnknownUserHome) }
  ensure
    ENV["HOME"] = home
  end

  if /mswin|mingw/ =~ RUBY_PLATFORM
    def test_expand_path_home_memory_leak_in_path
      assert_no_memory_leak_at_expand_path_home('', 'in path')
    end

    def test_expand_path_home_memory_leak_in_base
      assert_no_memory_leak_at_expand_path_home('".",', 'in base')
    end

    def assert_no_memory_leak_at_expand_path_home(arg, message)
      prep = 'ENV["HOME"] = "foo"*100'
      assert_no_memory_leak([], prep, <<-TRY, "memory leaked at non-absolute home #{message}")
      10000.times do
        begin
          File.expand_path(#{arg}"~/a")
        rescue ArgumentError => e
          next
        ensure
          abort("ArgumentError (non-absolute home) expected") unless e
        end
      end
      GC.start
      TRY
    end
  end


  def test_expand_path_remove_trailing_alternative_data
    assert_equal File.join(@rootdir, "aaa"), File.expand_path("#{@rootdir}/aaa::$DATA")
    assert_equal File.join(@rootdir, "aa:a"), File.expand_path("#{@rootdir}/aa:a:$DATA")
    assert_equal File.join(@rootdir, "aaa:$DATA"), File.expand_path("#{@rootdir}/aaa:$DATA")
  end if DRIVE

  def test_expand_path_resolve_empty_string_current_directory
    assert_equal(Dir.pwd, File.expand_path(""))
  end

  def test_expand_path_resolve_dot_current_directory
    assert_equal(Dir.pwd, File.expand_path("."))
  end

  def test_expand_path_resolve_file_name_relative_current_directory
    assert_equal(File.join(Dir.pwd, "foo"), File.expand_path("foo"))
  end

  def test_ignore_nil_dir_string
    assert_equal(File.join(Dir.pwd, "foo"), File.expand_path("foo", nil))
  end

  def test_expand_path_resolve_file_name_and_dir_string_relative
    assert_equal(File.join(Dir.pwd, "bar", "foo"),
      File.expand_path("foo", "bar"))
  end

  def test_expand_path_cleanup_dots_file_name
    bug = "[ruby-talk:18512]"

    assert_equal(File.join(Dir.pwd, ".a"), File.expand_path(".a"), bug)
    assert_equal(File.join(Dir.pwd, "..a"), File.expand_path("..a"), bug)

    if DRIVE
      # cleanup dots only on Windows
      assert_equal(File.join(Dir.pwd, "a"), File.expand_path("a."), bug)
      assert_equal(File.join(Dir.pwd, "a"), File.expand_path("a.."), bug)
    else
      assert_equal(File.join(Dir.pwd, "a."), File.expand_path("a."), bug)
      assert_equal(File.join(Dir.pwd, "a.."), File.expand_path("a.."), bug)
    end
  end

  def test_expand_path_converts_a_pathname_to_an_absolute_pathname_using_a_complete_path
    assert_equal(@dir, File.expand_path("", "#{@dir}"))
    assert_equal(File.join(@dir, "a"), File.expand_path("a", "#{@dir}"))
    assert_equal(File.join(@dir, "a"), File.expand_path("../a", "#{@dir}/xxx"))
    assert_equal(@rootdir, File.expand_path(".", "#{@rootdir}"))
  end

  def test_expand_path_ignores_supplied_dir_if_path_contains_a_drive_letter
    assert_equal(@rootdir, File.expand_path(@rootdir, "D:/"))
  end if DRIVE

  def test_expand_path_removes_trailing_slashes_from_absolute_path
    assert_equal(File.join(@rootdir, "foo"), File.expand_path("#{@rootdir}foo/"))
    assert_equal(File.join(@rootdir, "foo.rb"), File.expand_path("#{@rootdir}foo.rb/"))
  end

  def test_expand_path_removes_trailing_spaces_from_absolute_path
    assert_equal(File.join(@rootdir, "a"), File.expand_path("#{@rootdir}a "))
  end if DRIVE

  def test_expand_path_converts_a_pathname_which_starts_with_a_slash_using_dir_s_drive
    assert_match(%r"\Az:/foo\z"i, File.expand_path('/foo', "z:/bar"))
  end if DRIVE

  def test_expand_path_converts_a_pathname_which_starts_with_a_slash_and_unc_pathname
    assert_equal("//foo", File.expand_path('//foo', "//bar"))
    assert_equal("//bar/foo", File.expand_path('/foo', "//bar"))
    assert_equal("//foo", File.expand_path('//foo', "/bar"))
  end if DRIVE

  def test_expand_path_converts_a_dot_with_unc_dir
    assert_equal("//", File.expand_path('.', "//"))
  end

  def test_expand_path_preserves_unc_path_root
    assert_equal("//", File.expand_path("//"))
    assert_equal("//", File.expand_path("//."))
    assert_equal("//", File.expand_path("//.."))
  end

  def test_expand_path_converts_a_pathname_which_starts_with_a_slash_using_host_share
    assert_match(%r"\A//host/share/foo\z"i, File.expand_path('/foo', "//host/share/bar"))
  end if DRIVE

  def test_expand_path_converts_a_pathname_which_starts_with_a_slash_using_a_current_drive
    assert_match(%r"\A#{DRIVE}/foo\z"i, File.expand_path('/foo'))
  end

  def test_expand_path_returns_tainted_strings_or_not
    assert_equal(true, File.expand_path('foo').tainted?)
    assert_equal(true, File.expand_path('foo'.taint).tainted?)
    assert_equal(true, File.expand_path('/foo'.taint).tainted?)
    assert_equal(true, File.expand_path('foo', 'bar').tainted?)
    assert_equal(true, File.expand_path('foo', '/bar'.taint).tainted?)
    assert_equal(true, File.expand_path('foo'.taint, '/bar').tainted?)
    assert_equal(true, File.expand_path('~').tainted?) if ENV["HOME"]

    if DRIVE
      assert_equal(true, File.expand_path('/foo').tainted?)
      assert_equal(false, File.expand_path('//foo').tainted?)
      assert_equal(true, File.expand_path('C:/foo'.taint).tainted?)
      assert_equal(false, File.expand_path('C:/foo').tainted?)
      assert_equal(true, File.expand_path('foo', '/bar').tainted?)
      assert_equal(true, File.expand_path('foo', 'C:/bar'.taint).tainted?)
      assert_equal(true, File.expand_path('foo'.taint, 'C:/bar').tainted?)
      assert_equal(false, File.expand_path('foo', 'C:/bar').tainted?)
      assert_equal(false, File.expand_path('C:/foo/../bar').tainted?)
      assert_equal(false, File.expand_path('foo', '//bar').tainted?)
    else
      assert_equal(false, File.expand_path('/foo').tainted?)
      assert_equal(false, File.expand_path('foo', '/bar').tainted?)
    end
  end

  def test_expand_path_converts_a_pathname_to_an_absolute_pathname_using_home_as_base
    old_home = ENV["HOME"]
    home = ENV["HOME"] = "#{DRIVE}/UserHome"
    assert_equal(home, File.expand_path("~"))
    assert_equal(home, File.expand_path("~", "C:/FooBar"))
    assert_equal(File.join(home, "a"), File.expand_path("~/a", "C:/FooBar"))
  ensure
    ENV["HOME"] = old_home
  end

  def test_expand_path_converts_a_pathname_to_an_absolute_pathname_using_unc_home
    old_home = ENV["HOME"]
    unc_home = ENV["HOME"] = "//UserHome"
    assert_equal(unc_home, File.expand_path("~"))
  ensure
    ENV["HOME"] = old_home
  end if DRIVE

  def test_expand_path_does_not_modify_a_home_string_argument
    old_home = ENV["HOME"]
    home = ENV["HOME"] = "#{DRIVE}/UserHome"
    str = "~/a"
    assert_equal("#{home}/a", File.expand_path(str))
    assert_equal("~/a", str)
  ensure
    ENV["HOME"] = old_home
  end

  def test_expand_path_raises_argument_error_for_any_supplied_username
    bug = '[ruby-core:39597]'
    assert_raise(ArgumentError, bug) { File.expand_path("~anything") }
  end if DRIVE

  def test_expand_path_for_existent_username
    user = ENV['USER']
    skip "ENV['USER'] is not set" unless user
    assert_equal(ENV['HOME'], File.expand_path("~#{user}"))
  end unless DRIVE

  def test_expand_path_error_for_nonexistent_username
    user = "\u{3086 3046 3066 3044}:\u{307F 3084 304A 3046}"
    assert_raise_with_message(ArgumentError, /#{user}/) {File.expand_path("~#{user}")}
  end unless DRIVE

  def test_expand_path_error_for_non_absolute_home
    old_home = ENV["HOME"]
    ENV["HOME"] = "./UserHome"
    assert_raise_with_message(ArgumentError, /non-absolute home/) {File.expand_path("~")}
  ensure
    ENV["HOME"] = old_home
  end

  def test_expand_path_raises_a_type_error_if_not_passed_a_string_type
    assert_raise(TypeError) { File.expand_path(1) }
    assert_raise(TypeError) { File.expand_path(nil) }
    assert_raise(TypeError) { File.expand_path(true) }
  end

  def test_expand_path_expands_dot_dir
    assert_equal("#{DRIVE}/dir", File.expand_path("#{DRIVE}/./dir"))
  end

  def test_expand_path_does_not_expand_wildcards
    assert_equal("#{DRIVE}/*", File.expand_path("./*", "#{DRIVE}/"))
    assert_equal("#{Dir.pwd}/*", File.expand_path("./*", Dir.pwd))
    assert_equal("#{DRIVE}/?", File.expand_path("./?", "#{DRIVE}/"))
    assert_equal("#{Dir.pwd}/?", File.expand_path("./?", Dir.pwd))
  end if DRIVE

  def test_expand_path_does_not_modify_the_string_argument
    str = "./a/b/../c"
    assert_equal("#{Dir.pwd}/a/c", File.expand_path(str, Dir.pwd))
    assert_equal("./a/b/../c", str)
  end

  def test_expand_path_returns_a_string_when_passed_a_string_subclass
    sub = Class.new(String)
    str = sub.new "./a/b/../c"
    path = File.expand_path(str, Dir.pwd)
    assert_equal("#{Dir.pwd}/a/c", path)
    assert_instance_of(String, path)
  end

  def test_expand_path_accepts_objects_that_have_a_to_path_method
    klass = Class.new { def to_path; "a/b/c"; end }
    obj = klass.new
    assert_equal("#{Dir.pwd}/a/b/c", File.expand_path(obj))
  end

  def test_expand_path_with_drive_letter
    bug10858 = '[ruby-core:68130] [Bug #10858]'
    assert_match(%r'/bar/foo\z'i, File.expand_path('z:foo', 'bar'), bug10858)
    assert_equal('z:/bar/foo', File.expand_path('z:foo', '/bar'), bug10858)
  end if DRIVE

  def test_basename
    assert_equal(File.basename(@file).sub(/\.test$/, ""), File.basename(@file, ".test"))
    assert_equal("", s = File.basename(""))
    assert(!s.frozen?, '[ruby-core:24199]')
    assert_equal("foo", s = File.basename("foo"))
    assert(!s.frozen?, '[ruby-core:24199]')
    assert_equal("foo", File.basename("foo", ".ext"))
    assert_equal("foo", File.basename("foo.ext", ".ext"))
    assert_equal("foo", File.basename("foo.ext", ".*"))
    if /cygwin|mingw|mswin|bccwin/ =~ RUBY_PLATFORM
      basename = File.basename(@file)
      assert_equal(basename, File.basename(@file + " "))
      assert_equal(basename, File.basename(@file + "."))
      assert_equal(basename, File.basename(@file + "::$DATA"))
      basename.chomp!(".test")
      assert_equal(basename, File.basename(@file + " ", ".test"))
      assert_equal(basename, File.basename(@file + ".", ".test"))
      assert_equal(basename, File.basename(@file + "::$DATA", ".test"))
      assert_equal(basename, File.basename(@file + " ", ".*"))
      assert_equal(basename, File.basename(@file + ".", ".*"))
      assert_equal(basename, File.basename(@file + "::$DATA", ".*"))
    end
    if File::ALT_SEPARATOR == '\\'
      a = "foo/\225\\\\"
      [%W"cp437 \225", %W"cp932 \225\\"].each do |cp, expected|
        assert_equal(expected.force_encoding(cp), File.basename(a.dup.force_encoding(cp)), cp)
      end
    end

    assert_incompatible_encoding {|d| File.basename(d)}
    assert_incompatible_encoding {|d| File.basename(d, ".*")}
    assert_raise(Encoding::CompatibilityError) {File.basename("foo.ext", ".*".encode("utf-16le"))}

    s = "foo\x93_a".force_encoding("cp932")
    assert_equal(s, File.basename(s, "_a"))

    s = "\u4032.\u3024"
    assert_equal(s, File.basename(s, ".\x95\\".force_encoding("cp932")))
  end

  def test_dirname
    assert(@file.start_with?(File.dirname(@file)))
    assert_equal(".", File.dirname(""))
    assert_incompatible_encoding {|d| File.dirname(d)}
    if File::ALT_SEPARATOR == '\\'
      a = "\225\\\\foo"
      [%W"cp437 \225", %W"cp932 \225\\"].each do |cp, expected|
        assert_equal(expected.force_encoding(cp), File.dirname(a.dup.force_encoding(cp)), cp)
      end
    end
  end

  def test_extname
    assert_equal(".test", File.extname(@file))
    prefixes = ["", "/", ".", "/.", "bar/.", "/bar/."]
    infixes = ["", " ", "."]
    infixes2 = infixes + [".ext "]
    appendixes = [""]
    if /cygwin|mingw|mswin|bccwin/ =~ RUBY_PLATFORM
      appendixes << " " << "." << "::$DATA" << "::$DATA.bar"
    end
    prefixes.each do |prefix|
      appendixes.each do |appendix|
        infixes.each do |infix|
          path = "#{prefix}foo#{infix}#{appendix}"
          assert_equal("", File.extname(path), "File.extname(#{path.inspect})")
        end
        infixes2.each do |infix|
          path = "#{prefix}foo#{infix}.ext#{appendix}"
          assert_equal(".ext", File.extname(path), "File.extname(#{path.inspect})")
        end
      end
    end
    bug3175 = '[ruby-core:29627]'
    assert_equal(".rb", File.extname("/tmp//bla.rb"), bug3175)

    assert_incompatible_encoding {|d| File.extname(d)}
  end

  def test_split
    d, b = File.split(@file)
    assert_equal(File.dirname(@file), d)
    assert_equal(File.basename(@file), b)
  end

  def test_join
    s = "foo" + File::SEPARATOR + "bar" + File::SEPARATOR + "baz"
    assert_equal(s, File.join("foo", "bar", "baz"))
    assert_equal(s, File.join(["foo", "bar", "baz"]))

    o = Object.new
    def o.to_path; "foo"; end
    assert_equal(s, File.join(o, "bar", "baz"))
    assert_equal(s, File.join("foo" + File::SEPARATOR, "bar", File::SEPARATOR + "baz"))
  end

  def test_join_alt_separator
    if File::ALT_SEPARATOR == '\\'
      a = "\225\\"
      b = "foo"
      [%W"cp437 \225\\foo", %W"cp932 \225\\/foo"].each do |cp, expected|
        assert_equal(expected.force_encoding(cp), File.join(a.dup.force_encoding(cp), b.dup.force_encoding(cp)), cp)
      end
    end
  end

  def test_join_ascii_incompatible
    bug7168 = '[ruby-core:48012]'
    names = %w"a b".map {|s| s.encode(Encoding::UTF_16LE)}
    assert_raise(Encoding::CompatibilityError, bug7168) {File.join(*names)}
    assert_raise(Encoding::CompatibilityError, bug7168) {File.join(names)}

    a = Object.new
    b = names[1]
    names = [a, "b"]
    a.singleton_class.class_eval do
      define_method(:to_path) do
        names[1] = b
        "a"
      end
    end
    assert_raise(Encoding::CompatibilityError, bug7168) {File.join(names)}
  end

  def test_truncate
    assert_equal(0, File.truncate(@file, 1))
    assert_file.exist?(@file)
    assert_equal(1, File.size(@file))
    assert_equal(0, File.truncate(@file, 0))
    assert_file.exist?(@file)
    assert_file.zero?(@file)
    make_file("foo", @file)
    assert_raise(Errno::ENOENT) { File.truncate(@nofile, 0) }

    f = File.new(@file, "w")
    assert_equal(0, f.truncate(2))
    assert_file.exist?(@file)
    assert_equal(2, File.size(@file))
    assert_equal(0, f.truncate(0))
    assert_file.exist?(@file)
    assert_file.zero?(@file)
    f.close
    make_file("foo", @file)

    assert_raise(IOError) { File.open(@file) {|ff| ff.truncate(0)} }
  rescue NotImplementedError
  end

  def test_flock ## xxx
    f = File.new(@file, "r+")
    f.flock(File::LOCK_EX)
    f.flock(File::LOCK_SH)
    f.flock(File::LOCK_UN)
    f.close
  rescue NotImplementedError
  end

  def test_test
    sleep(@time - Time.now + 1.1)
    make_file("foo", @file + "2")
    [@dir, @file, @zerofile, @symlinkfile, @hardlinkfile].compact.each do |f|
      assert_equal(File.atime(f), test(?A, f))
      assert_equal(File.ctime(f), test(?C, f))
      assert_equal(File.mtime(f), test(?M, f))
      assert_equal(File.blockdev?(f), test(?b, f))
      assert_equal(File.chardev?(f), test(?c, f))
      assert_equal(File.directory?(f), test(?d, f))
      assert_equal(File.exist?(f), test(?e, f))
      assert_equal(File.file?(f), test(?f, f))
      assert_equal(File.setgid?(f), test(?g, f))
      assert_equal(File.grpowned?(f), test(?G, f))
      assert_equal(File.sticky?(f), test(?k, f))
      assert_equal(File.symlink?(f), test(?l, f))
      assert_equal(File.owned?(f), test(?o, f))
      assert_nothing_raised { test(?O, f) }
      assert_equal(File.pipe?(f), test(?p, f))
      assert_equal(File.readable?(f), test(?r, f))
      assert_equal(File.readable_real?(f), test(?R, f))
      assert_equal(File.size?(f), test(?s, f))
      assert_equal(File.socket?(f), test(?S, f))
      assert_equal(File.setuid?(f), test(?u, f))
      assert_equal(File.writable?(f), test(?w, f))
      assert_equal(File.writable_real?(f), test(?W, f))
      assert_equal(File.executable?(f), test(?x, f))
      assert_equal(File.executable_real?(f), test(?X, f))
      assert_equal(File.zero?(f), test(?z, f))
    end
    assert_equal(false, test(?-, @dir, @file))
    assert_equal(true, test(?-, @file, @file))
    assert_equal(true, test(?=, @file, @file))
    assert_equal(false, test(?>, @file, @file))
    assert_equal(false, test(?<, @file, @file))
    unless /cygwin/ =~ RUBY_PLATFORM
      assert_equal(false, test(?=, @file, @file + "2"))
      assert_equal(false, test(?>, @file, @file + "2"))
      assert_equal(true, test(?>, @file + "2", @file))
      assert_equal(true, test(?<, @file, @file + "2"))
      assert_equal(false, test(?<, @file + "2", @file))
    end
    assert_raise(ArgumentError) { test }
    assert_raise(Errno::ENOENT) { test(?A, @nofile) }
    assert_raise(ArgumentError) { test(?a) }
    assert_raise(ArgumentError) { test("\0".ord) }
  end

  def test_stat_init
    sleep(@time - Time.now + 1.1)
    make_file("foo", @file + "2")
    fs1, fs2 = File::Stat.new(@file), File::Stat.new(@file + "2")
    assert_nothing_raised do
      assert_equal(0, fs1 <=> fs1)
      assert_equal(-1, fs1 <=> fs2)
      assert_equal(1, fs2 <=> fs1)
      assert_nil(fs1 <=> nil)
      assert_integer(fs1.dev)
      assert_integer_or_nil(fs1.rdev)
      assert_integer_or_nil(fs1.dev_major)
      assert_integer_or_nil(fs1.dev_minor)
      assert_integer_or_nil(fs1.rdev_major)
      assert_integer_or_nil(fs1.rdev_minor)
      assert_integer(fs1.ino)
      assert_integer(fs1.mode)
      unless /emx|mswin|mingw/ =~ RUBY_PLATFORM
        # on Windows, nlink is always 1. but this behavior will be changed
        # in the future.
        assert_equal(@hardlinkfile ? 2 : 1, fs1.nlink)
      end
      assert_integer(fs1.uid)
      assert_integer(fs1.gid)
      assert_equal(3, fs1.size)
      assert_integer_or_nil(fs1.blksize)
      assert_integer_or_nil(fs1.blocks)
      assert_kind_of(Time, fs1.atime)
      assert_kind_of(Time, fs1.mtime)
      assert_kind_of(Time, fs1.ctime)
      assert_kind_of(String, fs1.inspect)
    end
    assert_raise(Errno::ENOENT) { File::Stat.new(@nofile) }
    assert_kind_of(File::Stat, File::Stat.new(@file).dup)
    assert_raise(TypeError) do
      File::Stat.new(@file).instance_eval { initialize_copy(0) }
    end
  end

  def test_stat_ftype
    assert_equal("directory", File::Stat.new(@dir).ftype)
    assert_equal("file", File::Stat.new(@file).ftype)
    # File::Stat uses stat
    assert_equal("file", File::Stat.new(@symlinkfile).ftype) if @symlinkfile
    assert_equal("file", File::Stat.new(@hardlinkfile).ftype) if @hardlinkfile
  end

  def test_stat_directory_p
    assert(File::Stat.new(@dir).directory?)
    assert(!(File::Stat.new(@file).directory?))
  end

  def test_stat_pipe_p ## xxx
    assert(!(File::Stat.new(@dir).pipe?))
    assert(!(File::Stat.new(@file).pipe?))
  end

  def test_stat_symlink_p
    assert(!(File::Stat.new(@dir).symlink?))
    assert(!(File::Stat.new(@file).symlink?))
    # File::Stat uses stat
    assert(!(File::Stat.new(@symlinkfile).symlink?)) if @symlinkfile
    assert(!(File::Stat.new(@hardlinkfile).symlink?)) if @hardlinkfile
  end

  def test_stat_socket_p ## xxx
    assert(!(File::Stat.new(@dir).socket?))
    assert(!(File::Stat.new(@file).socket?))
  end

  def test_stat_blockdev_p ## xxx
    assert(!(File::Stat.new(@dir).blockdev?))
    assert(!(File::Stat.new(@file).blockdev?))
  end

  def test_stat_chardev_p ## xxx
    assert(!(File::Stat.new(@dir).chardev?))
    assert(!(File::Stat.new(@file).chardev?))
  end

  def test_stat_readable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0200, @file)
    assert(!(File::Stat.new(@file).readable?))
    File.chmod(0600, @file)
    assert(File::Stat.new(@file).readable?)
  end

  def test_stat_readable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0200, @file)
    assert(!(File::Stat.new(@file).readable_real?))
    File.chmod(0600, @file)
    assert(File::Stat.new(@file).readable_real?)
  end

  def test_stat_world_readable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0006, @file)
    assert(File::Stat.new(@file).world_readable?)
    File.chmod(0060, @file)
    assert(!(File::Stat.new(@file).world_readable?))
    File.chmod(0600, @file)
    assert(!(File::Stat.new(@file).world_readable?))
  end

  def test_stat_writable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0400, @file)
    assert(!(File::Stat.new(@file).writable?))
    File.chmod(0600, @file)
    assert(File::Stat.new(@file).writable?)
  end

  def test_stat_writable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    return if Process.euid == 0
    File.chmod(0400, @file)
    assert(!(File::Stat.new(@file).writable_real?))
    File.chmod(0600, @file)
    assert(File::Stat.new(@file).writable_real?)
  end

  def test_stat_world_writable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0006, @file)
    assert(File::Stat.new(@file).world_writable?)
    File.chmod(0060, @file)
    assert(!(File::Stat.new(@file).world_writable?))
    File.chmod(0600, @file)
    assert(!(File::Stat.new(@file).world_writable?))
  end

  def test_stat_executable_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0100, @file)
    assert(File::Stat.new(@file).executable?)
    File.chmod(0600, @file)
    assert(!(File::Stat.new(@file).executable?))
  end

  def test_stat_executable_real_p
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    File.chmod(0100, @file)
    assert(File::Stat.new(@file).executable_real?)
    File.chmod(0600, @file)
    assert(!(File::Stat.new(@file).executable_real?))
  end

  def test_stat_file_p
    assert(!(File::Stat.new(@dir).file?))
    assert(File::Stat.new(@file).file?)
  end

  def test_stat_zero_p
    assert_nothing_raised { File::Stat.new(@dir).zero? }
    assert(!(File::Stat.new(@file).zero?))
    assert(File::Stat.new(@zerofile).zero?)
  end

  def test_stat_size_p
    assert_nothing_raised { File::Stat.new(@dir).size? }
    assert_equal(3, File::Stat.new(@file).size?)
    assert(!(File::Stat.new(@zerofile).size?))
  end

  def test_stat_owned_p ## xxx
    return if /cygwin|mswin|bccwin|mingw|emx/ =~ RUBY_PLATFORM
    assert(File::Stat.new(@file).owned?)
    assert(File::Stat.new(@file).grpowned?)
  end

  def test_stat_suid_sgid_sticky ## xxx
    assert(!(File::Stat.new(@file).setuid?))
    assert(!(File::Stat.new(@file).setgid?))
    assert(!(File::Stat.new(@file).sticky?))
  end

  def test_stat_size
    assert_integer(File::Stat.new(@dir).size)
    assert_equal(3, File::Stat.new(@file).size)
    assert_equal(0, File::Stat.new(@zerofile).size)
  end

  def test_stat_special_file
    # test for special files such as pagefile.sys on Windows
    assert_nothing_raised do
      Dir::glob("C:/*.sys") {|f| File::Stat.new(f) }
    end
  end if DRIVE

  def test_path_check
    assert_nothing_raised { ENV["PATH"] }
  end

  def test_size
    assert_equal(3, File.open(@file) {|f| f.size })
    File.open(@file, "a") do |f|
      f.write("bar")
      assert_equal(6, f.size)
    end
  end

  def test_absolute_path
    assert_equal(File.join(Dir.pwd, "~foo"), File.absolute_path("~foo"))
    dir = File.expand_path("/bar")
    assert_equal(File.join(dir, "~foo"), File.absolute_path("~foo", dir))
  end
end