12 $Is_MacOS = $^O eq 'MacOS';
16 my $Perl = which_perl();
18 my $afile = tempfile();
20 unlink($afile) if -f $afile;
22 $! = 0; # the -f above will set $! if $afile doesn't exist.
23 ok( open(my $f,"+>$afile"), 'open(my $f, "+>...")' );
26 ok( -f $afile, ' its a file');
27 ok( (print $f "SomeData\n"), ' we can print to it');
28 is( tell($f), 9, ' tell()' );
29 ok( seek($f,0,0), ' seek set' );
32 is( $b, "SomeData\n", ' readline' );
33 ok( -f $f, ' still a file' );
35 eval { die "Message" };
36 like( $@, qr/<\$f> line 1/, ' die message correct' );
38 ok( close($f), ' close()' );
39 ok( unlink($afile), ' unlink()' );
43 ok( open(my $f,'>', $afile), "open(my \$f, '>', $afile)" );
44 ok( (print $f "a row\n"), ' print');
45 ok( close($f), ' close' );
46 ok( -s $afile < 10, ' -s' );
50 ok( open(my $f,'>>', $afile), "open(my \$f, '>>', $afile)" );
51 ok( (print $f "a row\n"), ' print' );
52 ok( close($f), ' close' );
53 ok( -s $afile > 10, ' -s' );
57 ok( open(my $f, '<', $afile), "open(my \$f, '<', $afile)" );
59 is( scalar @rows, 2, ' readline, list context' );
60 is( $rows[0], "a row\n", ' first line read' );
61 is( $rows[1], "a row\n", ' second line' );
62 ok( close($f), ' close' );
66 ok( -s $afile < 20, '-s' );
68 ok( open(my $f, '+<', $afile), 'open +<' );
70 is( scalar @rows, 2, ' readline, list context' );
71 ok( seek($f, 0, 1), ' seek cur' );
72 ok( (print $f "yet another row\n"), ' print' );
73 ok( close($f), ' close' );
74 ok( -s $afile > 20, ' -s' );
79 ok( open(my $f, '-|', <<EOC), 'open -|' );
80 $Perl -e "print qq(a row\\n); print qq(another row\\n)"
84 is( scalar @rows, 2, ' readline, list context' );
85 ok( close($f), ' close' );
88 skip "Output for |- doesn't go to shell on MacOS", 5 if $Is_MacOS;
90 ok( open(my $f, '|-', <<EOC), 'open |-' );
96 print $f "not ok $test - piped in\n";
100 print $f "not ok $test - piped in\n";
102 ok( close($f), ' close' );
108 ok( !eval { open my $f, '<&', $afile; 1; }, '<& on a non-filehandle' );
109 like( $@, qr/Bad filehandle:\s+$afile/, ' right error' );
114 unlink($afile) if -f $afile;
116 ok( open(local $f,"+>$afile"), 'open local $f, "+>", ...' );
119 ok( -f $afile, ' -f' );
120 ok( (print $f "SomeData\n"), ' print' );
121 is( tell($f), 9, ' tell' );
122 ok( seek($f,0,0), ' seek set' );
125 is( $b, "SomeData\n", ' readline' );
126 ok( -f $f, ' still a file' );
128 eval { die "Message" };
129 like( $@, qr/<\$f> line 1/, ' proper die message' );
130 ok( close($f), ' close' );
136 ok( open(local $f,'>', $afile), 'open local $f, ">", ...' );
137 ok( (print $f "a row\n"), ' print');
138 ok( close($f), ' close');
139 ok( -s $afile < 10, ' -s' );
143 ok( open(local $f,'>>', $afile), 'open local $f, ">>", ...' );
144 ok( (print $f "a row\n"), ' print');
145 ok( close($f), ' close');
146 ok( -s $afile > 10, ' -s' );
150 ok( open(local $f, '<', $afile), 'open local $f, "<", ...' );
152 is( scalar @rows, 2, ' readline list context' );
153 ok( close($f), ' close' );
156 ok( -s $afile < 20, ' -s' );
159 ok( open(local $f, '+<', $afile), 'open local $f, "+<", ...' );
161 is( scalar @rows, 2, ' readline list context' );
162 ok( seek($f, 0, 1), ' seek cur' );
163 ok( (print $f "yet another row\n"), ' print' );
164 ok( close($f), ' close' );
165 ok( -s $afile > 20, ' -s' );
171 ok( open(local $f, '-|', <<EOC), 'open local $f, "-|", ...' );
172 $Perl -e "print qq(a row\\n); print qq(another row\\n)"
176 is( scalar @rows, 2, ' readline list context' );
177 ok( close($f), ' close' );
181 skip "Output for |- doesn't go to shell on MacOS", 5 if $Is_MacOS;
183 ok( open(local $f, '|-', <<EOC), 'open local $f, "|-", ...' );
184 $Perl -pe "s/^not //"
188 my $test = curr_test;
189 print $f "not ok $test - piping\n";
193 print $f "not ok $test - piping\n";
195 ok( close($f), ' close' );
201 ok( !eval { open local $f, '<&', $afile; 1 }, 'local <& on non-filehandle');
202 like( $@, qr/Bad filehandle:\s+$afile/, ' right error' );
207 ok( open(F, qq{$Perl -le "print 'ok'"|}), 'open to pipe' );
208 is(scalar <F>, "ok\n", ' readline');
209 ok( close F, ' close' );
213 ok( open(F, "-|", qq{$Perl -le "print 'ok'"}), 'open -|');
214 is( scalar <F>, "ok\n", ' readline');
215 ok( close F, ' close' );
220 # other dupping techniques
222 ok( open(my $stdout, ">&", \*STDOUT), 'dup \*STDOUT into lexical fh');
223 ok( open(STDOUT, ">&", $stdout), 'restore dupped STDOUT from lexical fh');
226 use strict; # the below should not warn
227 ok( open(my $stdout, ">&", STDOUT), 'dup STDOUT into lexical fh');
230 # used to try to open a file [perl #17830]
231 ok( open(my $stdin, "<&", fileno STDIN), 'dup fileno(STDIN) into lexical fh') or _diag $!;
235 skip "This perl uses perlio", 1 if $Config{useperlio};
236 skip "miniperl cannot be relied on to load %Errno"
237 if $ENV{PERL_CORE_MINITEST};
238 # Force the reference to %! to be run time by writing ! as {"!"}
239 skip "This system doesn't understand EINVAL", 1
240 unless exists ${"!"}{EINVAL};
243 ok(!open(F,'>',\my $s) && ${"!"}{EINVAL}, 'open(reference) raises EINVAL');
247 ok( !eval { open F, "BAR", "QUUX" }, 'Unknown open() mode' );
248 like( $@, qr/\QUnknown open() mode 'BAR'/, ' right error' );
252 local $SIG{__WARN__} = sub { $@ = shift };
255 my $tmphandle = shift;
256 my $line = scalar <$tmphandle>;
261 open($fh0[0], "TEST");
263 like($@, qr/<\$fh0\[...\]> line 1\./, "autoviv fh package aelem");
265 open($fh1{k}, "TEST");
267 like($@, qr/<\$fh1{...}> line 1\./, "autoviv fh package helem");
270 open($fh2[0], "TEST");
272 like($@, qr/<\$fh2\[...\]> line 1\./, "autoviv fh lexical aelem");
275 open($fh3{k}, "TEST");
277 like($@, qr/<\$fh3{...}> line 1\./, "autoviv fh lexical helem");
281 skip("These tests use perlio", 5) unless $Config{useperlio};
283 use warnings 'layer';
284 local $SIG{__WARN__} = sub { $w = shift };
286 eval { open(F, ">>>", $afile) };
287 like($w, qr/Invalid separator character '>' in PerlIO layer spec/,
288 "bad open (>>>) warning");
289 like($@, qr/Unknown open\(\) mode '>>>'/,
290 "bad open (>>>) failure");
292 eval { open(F, ">:u", $afile ) };
293 like($w, qr/Unknown PerlIO layer "u"/,
294 'bad layer ">:u" warning');
295 eval { open(F, "<:u", $afile ) };
296 like($w, qr/Unknown PerlIO layer "u"/,
297 'bad layer "<:u" warning');
298 eval { open(F, ":c", $afile ) };
299 like($@, qr/Unknown open\(\) mode ':c'/,
300 'bad layer ":c" failure');
303 # [perl #28986] "open m" crashes Perl
305 fresh_perl_like('open m', qr/^Search pattern not terminated at/,
306 { stderr => 1 }, 'open m test');
309 'sub f { open(my $fh, "xxx"); $fh = "f"; } f; f;print "ok"',
310 'ok', { stderr => 1 },
311 '#29102: Crash on assignment to lexical filehandle');
313 # [perl #31767] Using $1 as a filehandle via open $1, "file" doesn't raise
316 eval { open $99, "foo" };
317 like($@, qr/Modification of a read-only value attempted/, "readonly fh");