1#!./perl
2
3# $RCSfile: tell.t,v $$Revision$$Date$
4
5BEGIN {
6    chdir 't' if -d 't';
7    @INC = '../lib';
8}
9
10print "1..28\n";
11
12$TST = 'tst';
13
14$Is_Dosish = ($^O eq 'MSWin32' or $^O eq 'NetWare' or $^O eq 'dos' or
15              $^O eq 'os2' or $^O eq 'mint' or $^O eq 'cygwin' or
16              $^O =~ /^uwin/);
17
18open($TST, 'harness') || (die "Can't open harness");
19binmode $TST if $Is_Dosish;
20if (eof(tst)) { print "not ok 1\n"; } else { print "ok 1\n"; }
21
22$firstline = <$TST>;
23$secondpos = tell;
24
25$x = 0;
26while (<tst>) {
27    if (eof) {$x++;}
28}
29if ($x == 1) { print "ok 2\n"; } else { print "not ok 2\n"; }
30
31$lastpos = tell;
32
33unless (eof) { print "not ok 3\n"; } else { print "ok 3\n"; }
34
35if (seek($TST,0,0)) { print "ok 4\n"; } else { print "not ok 4\n"; }
36
37if (eof) { print "not ok 5\n"; } else { print "ok 5\n"; }
38
39if ($firstline eq <tst>) { print "ok 6\n"; } else { print "not ok 6\n"; }
40
41if ($secondpos == tell) { print "ok 7\n"; } else { print "not ok 7\n"; }
42
43if (seek(tst,0,1)) { print "ok 8\n"; } else { print "not ok 8\n"; }
44
45if (eof($TST)) { print "not ok 9\n"; } else { print "ok 9\n"; }
46
47if ($secondpos == tell) { print "ok 10\n"; } else { print "not ok 10\n"; }
48
49if (seek(tst,0,2)) { print "ok 11\n"; } else { print "not ok 11\n"; }
50
51if ($lastpos == tell) { print "ok 12\n"; } else { print "not ok 12\n"; }
52
53unless (eof) { print "not ok 13\n"; } else { print "ok 13\n"; }
54
55if ($. == 0) { print "not ok 14\n"; } else { print "ok 14\n"; }
56
57$curline = $.;
58open(other, 'harness') || (die "Can't open harness: $!");
59binmode other if (($^O eq 'MSWin32') || ($^O eq 'NetWare'));
60
61{
62    local($.);
63
64    if ($. == 0) { print "not ok 15\n"; } else { print "ok 15\n"; }
65
66    tell other;
67    if ($. == 0) { print "ok 16\n"; } else { print "not ok 16\n"; }
68
69    $. = 5;
70    scalar <other>;
71    if ($. == 6) { print "ok 17\n"; } else { print "not ok 17\n"; }
72}
73
74if ($. == $curline) { print "ok 18\n"; } else { print "not ok 18\n"; }
75
76{
77    local($.);
78
79    scalar <other>;
80    if ($. == 7) { print "ok 19\n"; } else { print "not ok 19\n"; }
81}
82
83if ($. == $curline) { print "ok 20\n"; } else { print "not ok 20\n"; }
84
85{
86    local($.);
87
88    tell other;
89    if ($. == 7) { print "ok 21\n"; } else { print "not ok 21\n"; }
90}
91
92close(other);
93if (tell(other) == -1)  { print "ok 22\n"; } else { print "not ok 22\n"; }
94
95if (tell(ether) == -1)  { print "ok 23\n"; } else { print "not ok 23\n"; }
96
97# ftell(STDIN) (or any std streams) is undefined, it can return -1 or
98# something else.  ftell() on pipes, fifos, and sockets is defined to
99# return -1.
100
101my $written = "tell_write.txt";
102
103END { unlink($written) }
104
105close($tst);
106open($tst,">$written")  || die "Cannot open $written:$!";
107binmode $tst if $Is_Dosish;
108
109if (tell($tst) == 0) { print "ok 24\n"; } else { print "not ok 24\n"; }
110
111print $tst "fred\n";
112
113if (tell($tst) == 5) { print "ok 25\n"; } else { print "not ok 25\n"; }
114
115print $tst "more\n";
116
117if (tell($tst) == 10) { print "ok 26\n"; } else { print "not ok 26\n"; }
118
119close($tst);
120
121open($tst,"+>>$written")  || die "Cannot open $written:$!";
122binmode $tst if $Is_Dosish;
123
124if (0) 
125{
126 # :stdio does not pass these so ignore them for now 
127
128if (tell($tst) == 0) { print "ok 27\n"; } else { print "not ok 27\n"; }
129
130$line = <$tst>;
131
132if ($line eq "fred\n") { print "ok 29\n"; } else { print "not ok 29\n"; }
133
134if (tell($tst) == 5) { print "ok 30\n"; } else { print "not ok 30\n"; }
135
136}
137
138print $tst "xxxx\n";
139
140if (tell($tst) == 15 ||
141    tell($tst) == 5) # unset PERLIO or PERLIO=stdio (e.g. HP-UX, Solaris)
142{ print "ok 27\n"; } else { print "not ok 27\n"; }
143
144close($tst);
145
146open($tst,">$written")  || die "Cannot open $written:$!";
147print $tst "foobar";
148close $tst;
149open($tst,">>$written")  || die "Cannot open $written:$!";
150
151if (tell($tst) == 6)
152{ print "ok 28\n"; } else { print "not ok 28\n"; }
153close $tst;
154
155