3 # There are few filetest operators that are portable enough to test.
4 # See pod/perlport.pod for details.
12 plan(tests => 53 + 27*14);
14 # Tests presume we are in t/op directory and that file 'TEST' is found
16 is(-d 'op', 1, "-d: directory correctly identified");
17 is(-f 'TEST', 1, "-f: plain file correctly identified");
18 isnt(-f 'op', 1, "-f: directory is not a plain file");
19 isnt(-d 'TEST', 1, "-d: plain file is not a directory");
20 is(-r 'TEST', 1, "-r: file readable by effective uid/gid not found");
22 # Make a read only file. This happens to be empty, so we also use it later.
23 my $ro_empty_file = tempfile();
26 open my $fh, '>', $ro_empty_file or die "open $fh: $!";
27 close $fh or die "close $fh: $!";
30 chmod 0555, $ro_empty_file or die "chmod 0555, '$ro_empty_file' failed: $!";
35 # root can read and write anything, so switch uid (may not be
39 skip("Can't drop root privs to test read-only files") if $> == 0;
40 note("Dropped root privs to test read-only files. \$> == $>");
44 isnt(-w $ro_empty_file, 1, "-w: file writable by effective uid/gid");
47 # If the previous assignment to $> worked, so should this:
49 note("Restored root privs after testing read-only files. \$> == $>");
53 # these would fail for the euid 1
54 # (unless we have unpacked the source code as uid 1...)
55 is(-r 'op', 1, "-r: directory readable by effective uid/gid");
56 is(-w 'op', 1, "-w: directory writable by effective uid/gid");
57 is(-x 'op', 1, "-x: executable by effective uid/gid"); # Hohum. Are directories -x everywhere?
59 is( "@{[grep -r, qw(foo io noo op zoo)]}", "io op",
60 "-r: found directories readable by effective uid/gid" );
62 # Test stackability of filetest operators
64 is(defined( -f -d 'TEST' ), 1, "-f and -d stackable: plain file found");
65 isnt(-f -d _, 1, "-f and -d stackable: no plain file found");
66 isnt(defined( -e 'zoo' ), 1, "-e: file does not exist");
67 isnt(defined( -e -d 'zoo' ), 1, "-e and -d: neither file nor directory exists");
68 isnt(defined( -f -e 'zoo' ), 1, "-f and -e: not a plain file and does not exist");
69 is(-f -e 'TEST', 1, "-f and -e: plain file and exists");
70 is(-e -f 'TEST', 1, "-e and -f: exists and is plain file");
71 is(defined(-d -e 'TEST'), 1, "-d and -e: file at least exists");
72 is(defined(-e -d 'TEST'), 1, "-e and -d: file at least exists");
73 isnt( -f -d 'op', 1, "-f and -d: directory found but is not a plain file");
74 is(-x -d -x 'op', 1, "-x, -d and -x again: directory exists and is executable");
75 my ($size) = (stat 'TEST')[7];
76 cmp_ok($size, '>', 1, 'TEST is longer than 1 byte');
77 is( (-s -f 'TEST'), $size, "-s returns real size" );
78 is(-f -s 'TEST', 1, "-f and -s: plain file with non-zero size");
80 # now with an empty file
81 is(-f $ro_empty_file, 1, "-f: plain file found");
82 is(-s $ro_empty_file, 0, "-s: file has 0 bytes");
83 is(-f -s $ro_empty_file, 0, "-f and -s: plain file with 0 bytes");
84 is(-s -f $ro_empty_file, 0, "-s and -f: file with 0 bytes is plain file");
87 eval { -l -e "TEST" };
88 like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
89 'stacked -l non-lstat error with warnings off';
92 eval { -l -e "TEST" };
93 like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
94 'stacked -l non-lstat error with warnings on';
96 # Make sure -l is using the previous stat buffer, and not using the previ-
97 # ous op’s return value as a file name.
98 # t/TEST can be a symlink under -Dmksymlinks, so use our temporary file.
100 use Perl::OSType 'os_type';
101 if (os_type ne 'Unix') { skip "Not Unix", 3 }
102 chomp(my $ln = `which ln`);
103 if ( ! -e $ln ) { skip "No ln" , 3 }
104 lstat $ro_empty_file;
105 `ln -s $ro_empty_file 1`;
106 isnt(-l -e _, 1, 'stacked -l uses previous stat, not previous retval');
109 # Since we already have our skip block set up, we might as well put this
111 # -l always treats a non-bareword argument as a file name
112 system 'ln', '-s', $ro_empty_file, \*foo;
115 local $SIG{__WARN__} = sub { push @warnings, @_ };
116 is(-l \*foo, 1, '-l \*foo is a file name');
117 ok($warnings[0] =~ /-l on filehandle foo/, 'warning for -l $handle');
120 # More -l $handle warning tests
124 local $SIG{__WARN__} = sub { push @warnings, @_ };
125 () = -l \*{"\x{3c6}oo"};
126 like($warnings[0], qr/-l on filehandle \x{3c6}oo/,
127 '-l $handle warning is utf8-clean');
129 like($warnings[1], qr/-l on filehandle foo/,
130 '-l $handle warning occurs for globs, not just globrefs');
131 tell foo; # vivify the IO slot
133 # (element [3] because tell also warns)
134 like($warnings[3], qr/-l on filehandle at/,
135 '-l $handle warning occurs for iorefs as well');
138 # test that _ is a bareword after filetest operators
141 is(-f _, 1, "_ is bareword after filetest operator");
142 sub _ { "this is not a file name" }
143 is(-f _, 1, "_ is bareword after filetest operator");
152 $over = [qq($_[0]), $_[1]];
159 # No fallback. -X should fall back to string overload even without
161 use overload q/""/ => sub { $over = 1; "TEST" };
167 q/""/ => sub { "TEST" },
168 -X => sub { "-$_[1]" };
173 # Need fallback. Previous versions of perl required 'fallback' to do
174 # -X operations on an object with no "" overload.
180 my $ft = bless [], "OverFtest";
182 my $str = bless [], "OverString";
183 my $both = bless [], "OverBoth";
184 my $neither = bless [], "OverNeither";
185 my $nstr = qq($neither);
187 open my $gv, "<", "TEST";
188 bless $gv, "OverString";
189 open my $io, "<", "TEST";
191 bless $io, "OverString";
193 my $fcntl_not_available;
194 eval { require Fcntl } or $fcntl_not_available = 1;
196 for my $op (split //, "rwxoRWXOezsfdlpSbctugkTMBAC") {
198 my $rv = eval "-$op \$ft";
199 isnt( $rv, undef, "overloaded -$op succeeds" )
201 is( $over->[0], $ftstr, "correct object for overloaded -$op" );
202 is( $over->[1], $op, "correct op for overloaded -$op" );
203 is( $rv, "-$op", "correct return value for overloaded -$op");
205 my ($exp, $is) = (1, "is");
207 !$fcntl_not_available and (
208 $op eq "u" and not eval { Fcntl::S_ISUID() } or
209 $op eq "g" and not eval { Fcntl::S_ISGID() } or
210 $op eq "k" and not eval { Fcntl::S_ISVTX() }
213 ($exp, $is) = (0, "not");
217 $rv = eval "-$op \$str";
218 is($@, "", "-$op succeeds with string overloading");
219 is( $rv, eval "-$op 'TEST'", "correct -$op on string overload" );
220 is( $over, $exp, "string overload $is called for -$op" );
222 ($exp, $is) = $op eq "l" ? (1, "is") : (0, "not");
226 is( $over, $exp, "string overload $is called for -$op on GLOB" );
228 # IO refs always get string overload called. This might be a bug.
229 $op eq "t" || $op eq "T" || $op eq "B"
230 and ($exp, $is) = (1, "is");
234 is( $over, $exp, "string overload $is called for -$op on IO");
236 $rv = eval "-$op \$both";
237 is( $rv, "-$op", "correct -$op on string/-X overload" );
239 $rv = eval "-$op \$neither";
240 is($@, "", "-$op succeeds with random overloading");
241 is( $rv, eval "-$op \$nstr", "correct -$op with random overloading" );
243 is( eval "-r -$op \$ft", "-r", "stacked overloaded -$op" );
244 is( eval "-$op -r \$ft", "-$op", "overloaded stacked -$op" );
247 # -l stack corruption: this bug occurred from 5.8 to 5.14
249 push my @foo, "bar", -l baz;
250 is $foo[0], "bar", '-l bareword does not corrupt the stack';
253 # -l and fatal warnings
255 eval { use warnings FATAL => io; -l cradd };
257 'fatal warnings do not prevent -l HANDLE from setting stat status');
259 # File test ops should not call get-magic on the topmost SV on the stack if
260 # it belongs to another op.
263 sub oon::TIESCALAR{bless[],'oon'}
267 is $w, 1, 'file test does not call FETCH on stack item not its own';
272 my $Perl = which_perl();
275 skip "no -T on filehandles", 8 unless eval { -T STDERR; 1 };
277 # Test that -T HANDLE sets the last stat type
278 -l "perl.c"; # last stat type is now lstat
279 -T STDERR; # should set it to stat, since -T does a stat
280 eval { -l _ }; # should die, because the last stat type is not lstat
281 like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
282 '-T HANDLE sets the stat type';
284 # statgv should be cleared when freed
286 'open my $fh, "test.pl"; -r $fh; undef $fh; open my $fh2, '
287 . "q\0$Perl\0; print -B _",
289 { switches => ['-l'] },
290 'PL_statgv should not point to freed-and-reused SV';
292 # or coerced into a non-glob
294 'open Fh, "test.pl"; -r($h{i} = *Fh); $h{i} = 3; undef %h;'
295 . 'open my $fh2, ' . "q\0" . which_perl() . "\0; print -B _",
297 { switches => ['-l'] },
298 'PL_statgv should not point to coerced-freed-and-reused GV';
300 # -T _ should work after stat $ioref
301 open my $fh, 'test.pl';
302 stat $Perl; # a binary file
304 is(-T _, 1, '-T _ works after stat $ioref');
306 # and after -r $ioref
308 is(-T _, 1, '-T _ works after -r $ioref');
310 # -T _ on closed filehandle should still reset stat info
314 isnt(stat _, 1, '-T _ on closed filehandle resets stat info');
319 like $@, qr/^The stat preceding lstat\(\) wasn't an lstat at /,
320 '-T on closed handle resets last stat type';
322 # Fatal warnings should not affect the setting of errno.
327 eval { use warnings FATAL => unopened; -T cradd };
330 'fatal warnings do not affect errno after -T BADHADNLE';
333 is runperl(prog => '-T _', switches => ['-w'], stderr => 1), "",
334 'no uninit warnings from -T with no preceding stat';
337 my $rand_file_name = 'filetest-' . rand =~ y/.//dr;
338 if (-e $rand_file_name) { skip "File $rand_file_name exists", 1 }
341 isnt(stat _, 1, '-T "nonexistent" resets stat success status');
344 # Unsuccessful filetests on filehandles should leave stat buffers in the
345 # same state whether fatal warnings are on or off.
350 my $failed_stat1 = stat _;
353 eval { use warnings FATAL => unopened; -r *phlon };
354 my $failed_stat2 = stat _;
356 is $failed_stat2, $failed_stat1,
357 'failed -r($gv_without_io) with and w/out fatal warnings';
360 -r cength; # at compile time autovivifies IO, but with no fp
361 $failed_stat1 = stat _;
364 eval { use warnings FATAL => unopened; -r cength };
365 $failed_stat2 = stat _;
367 is $failed_stat2, $failed_stat1,
368 'failed -r($gv_with_io_but_no_fp) with and w/out fatal warnings';