15 my $Perl = which_perl();
17 my $afile = tempfile();
19 unlink($afile) if -f $afile;
21 $! = 0; # the -f above will set $! if $afile doesn't exist.
22 ok( open(my $f,"+>$afile"), 'open(my $f, "+>...")' );
25 ok( -f $afile, ' its a file');
26 ok( (print $f "SomeData\n"), ' we can print to it');
27 is( tell($f), 9, ' tell()' );
28 ok( seek($f,0,0), ' seek set' );
31 is( $b, "SomeData\n", ' readline' );
32 ok( -f $f, ' still a file' );
34 eval { die "Message" };
35 like( $@, qr/<\$f> line 1/, ' die message correct' );
37 ok( close($f), ' close()' );
38 ok( unlink($afile), ' unlink()' );
42 ok( open(my $f,'>', $afile), "open(my \$f, '>', $afile)" );
43 ok( (print $f "a row\n"), ' print');
44 ok( close($f), ' close' );
45 ok( -s $afile < 10, ' -s' );
49 ok( open(my $f,'>>', $afile), "open(my \$f, '>>', $afile)" );
50 ok( (print $f "a row\n"), ' print' );
51 ok( close($f), ' close' );
52 ok( -s $afile > 10, ' -s' );
56 ok( open(my $f, '<', $afile), "open(my \$f, '<', $afile)" );
58 is( scalar @rows, 2, ' readline, list context' );
59 is( $rows[0], "a row\n", ' first line read' );
60 is( $rows[1], "a row\n", ' second line' );
61 ok( close($f), ' close' );
65 ok( -s $afile < 20, '-s' );
67 ok( open(my $f, '+<', $afile), 'open +<' );
69 is( scalar @rows, 2, ' readline, list context' );
70 ok( seek($f, 0, 1), ' seek cur' );
71 ok( (print $f "yet another row\n"), ' print' );
72 ok( close($f), ' close' );
73 ok( -s $afile > 20, ' -s' );
78 ok( open(my $f, '-|', <<EOC), 'open -|' );
79 $Perl -e "print qq(a row\\n); print qq(another row\\n)"
83 is( scalar @rows, 2, ' readline, list context' );
84 ok( close($f), ' close' );
87 ok( open(my $f, '|-', <<EOC), 'open |-' );
93 print $f "not ok $test - piped in\n";
97 print $f "not ok $test - piped in\n";
99 ok( close($f), ' close' );
105 ok( !eval { open my $f, '<&', $afile; 1; }, '<& on a non-filehandle' );
106 like( $@, qr/Bad filehandle:\s+$afile/, ' right error' );
108 ok( !eval { *some_glob = 1; open my $f, '<&', *some_glob; 1; }, '<& on a non-filehandle glob' );
109 like( $@, qr/Bad filehandle:\s+some_glob/, ' right error' );
113 use open qw( :utf8 :std );
114 ok( !eval { use utf8; *ǡfilḛ = 1; open my $f, '<&', *ǡfilḛ; 1; }, '<& on a non-filehandle glob' );
115 like( $@, qr/Bad filehandle:\s+ǡfilḛ/u, ' right error' );
120 unlink($afile) if -f $afile;
122 ok( open(local $f,"+>$afile"), 'open local $f, "+>", ...' );
125 ok( -f $afile, ' -f' );
126 ok( (print $f "SomeData\n"), ' print' );
127 is( tell($f), 9, ' tell' );
128 ok( seek($f,0,0), ' seek set' );
131 is( $b, "SomeData\n", ' readline' );
132 ok( -f $f, ' still a file' );
134 eval { die "Message" };
135 like( $@, qr/<\$f> line 1/, ' proper die message' );
136 ok( close($f), ' close' );
142 ok( open(local $f,'>', $afile), 'open local $f, ">", ...' );
143 ok( (print $f "a row\n"), ' print');
144 ok( close($f), ' close');
145 ok( -s $afile < 10, ' -s' );
149 ok( open(local $f,'>>', $afile), 'open local $f, ">>", ...' );
150 ok( (print $f "a row\n"), ' print');
151 ok( close($f), ' close');
152 ok( -s $afile > 10, ' -s' );
156 ok( open(local $f, '<', $afile), 'open local $f, "<", ...' );
158 is( scalar @rows, 2, ' readline list context' );
159 ok( close($f), ' close' );
162 ok( -s $afile < 20, ' -s' );
165 ok( open(local $f, '+<', $afile), 'open local $f, "+<", ...' );
167 is( scalar @rows, 2, ' readline list context' );
168 ok( seek($f, 0, 1), ' seek cur' );
169 ok( (print $f "yet another row\n"), ' print' );
170 ok( close($f), ' close' );
171 ok( -s $afile > 20, ' -s' );
177 ok( open(local $f, '-|', <<EOC), 'open local $f, "-|", ...' );
178 $Perl -e "print qq(a row\\n); print qq(another row\\n)"
182 is( scalar @rows, 2, ' readline list context' );
183 ok( close($f), ' close' );
187 ok( open(local $f, '|-', <<EOC), 'open local $f, "|-", ...' );
188 $Perl -pe "s/^not //"
192 my $test = curr_test;
193 print $f "not ok $test - piping\n";
197 print $f "not ok $test - piping\n";
199 ok( close($f), ' close' );
205 ok( !eval { open local $f, '<&', $afile; 1 }, 'local <& on non-filehandle');
206 like( $@, qr/Bad filehandle:\s+$afile/, ' right error' );
211 ok( open(F, qq{$Perl -le "print 'ok'"|}), 'open to pipe' );
212 is(scalar <F>, "ok\n", ' readline');
213 ok( close F, ' close' );
217 ok( open(F, "-|", qq{$Perl -le "print 'ok'"}), 'open -|');
218 is( scalar <F>, "ok\n", ' readline');
219 ok( close F, ' close' );
224 # other dupping techniques
226 ok( open(my $stdout, ">&", \*STDOUT), 'dup \*STDOUT into lexical fh');
227 ok( open(STDOUT, ">&", $stdout), 'restore dupped STDOUT from lexical fh');
230 use strict; # the below should not warn
231 ok( open(my $stdout, ">&", STDOUT), 'dup STDOUT into lexical fh');
234 # used to try to open a file [perl #17830]
235 ok( open(my $stdin, "<&", fileno STDIN), 'dup fileno(STDIN) into lexical fh') or _diag $!;
237 fileno(STDIN) =~ /(.)/;
238 ok open($stdin, "<&", $1), 'open ... "<&", $magical_fileno',
243 skip "This perl uses perlio", 1 if $Config{useperlio};
244 skip_if_miniperl("miniperl can't rely on loading %Errno", 1);
245 # Force the reference to %! to be run time by writing ! as {"!"}
246 skip "This system doesn't understand EINVAL", 1
247 unless exists ${"!"}{EINVAL};
250 ok(!open(F,'>',\my $s) && ${"!"}{EINVAL}, 'open(reference) raises EINVAL');
254 ok( !eval { open F, "BAR", "QUUX" }, 'Unknown open() mode' );
255 like( $@, qr/\QUnknown open() mode 'BAR'/, ' right error' );
259 local $SIG{__WARN__} = sub { $@ = shift };
262 my $tmphandle = shift;
263 my $line = scalar <$tmphandle>;
268 open($fh0[0], "TEST");
270 like($@, qr/<\$fh0\[...\]> line 1\./, "autoviv fh package aelem");
272 open($fh1{k}, "TEST");
274 like($@, qr/<\$fh1\{...}> line 1\./, "autoviv fh package helem");
277 open($fh2[0], "TEST");
279 like($@, qr/<\$fh2\[...\]> line 1\./, "autoviv fh lexical aelem");
282 open($fh3{k}, "TEST");
284 like($@, qr/<\$fh3\{...}> line 1\./, "autoviv fh lexical helem");
286 local $/ = *F; # used to cause an assertion failure
288 like($@, qr/<\$fh3\{...}> chunk 2\./,
289 '<...> line 1 when $/ is set to a glob');
293 skip("These tests use perlio", 5) unless $Config{useperlio};
295 use warnings 'layer';
296 local $SIG{__WARN__} = sub { $w = shift };
298 eval { open(F, ">>>", $afile) };
299 like($w, qr/Invalid separator character '>' in PerlIO layer spec/,
300 "bad open (>>>) warning");
301 like($@, qr/Unknown open\(\) mode '>>>'/,
302 "bad open (>>>) failure");
304 eval { open(F, ">:u", $afile ) };
305 like($w, qr/Unknown PerlIO layer "u"/,
306 'bad layer ">:u" warning');
307 eval { open(F, "<:u", $afile ) };
308 like($w, qr/Unknown PerlIO layer "u"/,
309 'bad layer "<:u" warning');
310 eval { open(F, ":c", $afile ) };
311 like($@, qr/Unknown open\(\) mode ':c'/,
312 'bad layer ":c" failure');
315 # [perl #28986] "open m" crashes Perl
317 fresh_perl_like('open m', qr/^Search pattern not terminated at/,
318 { stderr => 1 }, 'open m test');
321 'sub f { open(my $fh, "xxx"); $fh = "f"; } f; f;print "ok"',
322 'ok', { stderr => 1 },
323 '#29102: Crash on assignment to lexical filehandle');
325 # [perl #31767] Using $1 as a filehandle via open $1, "file" doesn't raise
328 eval { open $99, "foo" };
329 like($@, qr/Modification of a read-only value attempted/, "readonly fh");
330 # But we do not want that exception applying to close(), since it does not
333 no warnings "uninitialized";
334 # make sure $+ is undefined
338 is($@, '', 'no "Modification of a read-only value" when closing');
340 # [perl#73626] mg_get wasn't run on the pipe arg
344 sub TIESCALAR { bless {} }
345 sub FETCH { "$Perl -e 1"}
351 ok( open(my $f, '-|', $p), 'open -| magic');
354 # [perl #77492] Crash when stringifying a glob, a reference to which has
355 # been opened and written to.
358 open my $fh, ">", \*STDOUT;
365 'ok', { stderr => 1 },
366 '[perl #77492]: open $fh, ">", \*glob causes SEGV');
368 # [perl #77684] Opening a reference to a glob copy.
370 skip_if_miniperl("no dynamic loading on miniperl, so can't load PerlIO::scalar", 1);
372 open my $fh, ">", \$var;
374 is $var, "hello", '[perl #77684]: open $fh, ">", \$glob_copy'
375 # when this fails, it leaves an extra file:
379 # check that we can call methods on filehandles auto-magically
380 # and have IO::File loaded for us
382 skip_if_miniperl("no dynamic loading on miniperl, so can't load IO::File", 3);
383 is( $INC{'IO/File.pm'}, undef, "IO::File not loaded" );
385 open my $fh, ">", \$var;
386 ok( eval { $fh->autoflush(1); 1 }, '$fh->autoflush(1) lives' );
387 ok( $INC{'IO/File.pm'}, "IO::File now loaded" );
390 sub _117941 { package _117941; open my $a, "TEST" }
391 delete $::{"_117941::"};
393 pass("no crash when open autovivifies glob in freed package");