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|
#!/usr/bin/perl -w
use strict;
use warnings;
use Test::More;
use Errno qw/ENOENT/;
use File::Temp qw/tempfile/;
use Test::MockFile qw< nostrict >; # Everything below this can have its open overridden.
my $test_string = "abcd\nefgh\n";
my ( $fh_real, $filename ) = tempfile();
print $fh_real $test_string;
note "-------------- REAL MODE --------------";
my $open_return = open( $fh_real, '<:stdio', $filename );
is( $open_return, 1, "Open a real file bypassing PERLIO" );
is( <$fh_real>, "abcd\n", " ... line 1" );
is( <$fh_real>, "efgh\n", " ... line 2" );
is( <$fh_real>, undef, " ... EOF" );
close $fh_real;
undef $fh_real;
unlink $filename;
note "-------------- MOCK MODE --------------";
my $bar = Test::MockFile->file( $filename, $test_string );
$open_return = open( $fh_real, '<:stdio', $filename );
is( $open_return, 1, "Open a mocked file bypassing PERLIO" );
is( <$fh_real>, "abcd\n", " ... line 1" );
is( <$fh_real>, "efgh\n", " ... line 2" );
is( <$fh_real>, undef, " ... EOF" );
close $fh_real;
ok( -e $filename, "Real file is there" );
undef $bar;
ok( !-e $filename, "Real file is not there" );
note "Following symlinks for open";
my $mock_file = Test::MockFile->file( $filename, $test_string );
my $mock_link = Test::MockFile->symlink( $filename, '/qwerty' );
{
is( open( my $fh, '<', '/qwerty' ), 1, "Open a mocked file via its symlink" );
is( <$fh>, "abcd\n", " ... line 1" );
is( <$fh>, "efgh\n", " ... line 2" );
is( <$fh>, undef, " ... EOF" );
close $fh;
}
{
$mock_file->unlink;
is( open( my $fh, '<', '/qwerty' ), undef, "Open a mocked file via its symlink when the file is missing fails." );
is( $! + 0, ENOENT, '$! is ENOENT' );
}
subtest(
'open modes' => sub {
foreach my $write_mode (qw( > >> )) {
my $open_str = $write_mode . '/debug.log';
my $file = Test::MockFile->file( '/debug.log', '' );
my $fh;
$! = 0;
ok( open( $fh, $open_str ), "Two-arg $write_mode open works" );
is( $! + 0, 0, 'No error' );
$! = 0;
ok( close($fh), 'Successfully closed open handle' );
is( $! + 0, 0, 'No error' );
}
foreach my $read_mode ( '<', '' ) {
my $open_str = $read_mode . '/debug.log';
my $file = Test::MockFile->file( '/debug.log', '' );
my $fh;
$! = 0;
ok( open( $fh, $open_str ), "Two-arg $read_mode open works" );
is( $open_str, "${read_mode}/debug.log", "arg not changed" );
is( $! + 0, 0, 'No error' );
$! = 0;
ok( close($fh), 'Successfully closed open handle' );
is( $! + 0, 0, 'No error' );
}
foreach my $multi_mode (qw( +< +> )) {
my $open_str = $multi_mode . '/debug.log';
my $file = Test::MockFile->file( '/debug.log', '' );
my $fh;
$! = 0;
ok( open( $fh, $open_str ), "Two-arg $multi_mode open fails" );
is( $! + 0, 0, 'No error' );
$! = 0;
ok( open( $fh, $multi_mode, '/debug.log' ), "Three-arg $multi_mode open fails" );
is( $! + 0, 0, 'No error' );
}
# Pipe open pass-through
my ( $fh, $tempfile ) = tempfile( 'CLEANUP' => 1 );
my $pipefh;
# Three-arg pipe write
ok( open( $pipefh, '|-', "echo hello >> $tempfile" ), 'Succesful three-arg pipe open write' );
# No point testing $! because it will correctly be set to ESPIPE (29, illegal seek)
$! = 0;
ok( close($pipefh), 'Successfully closed pipe' );
is( $! + 0, 0, 'No error' );
# Two-arg pipe write
ok( open( $pipefh, "|echo world >> $tempfile" ), 'Succesful two-arg pipe open write' );
# No point testing $! because it will correctly be set to ESPIPE (29, illegal seek)
$! = 0;
ok( close($pipefh), 'Successfully closed pipe' );
is( $! + 0, 0, 'No error' );
# Three-arg pipe write
ok( open( $pipefh, '-|', "cat $tempfile" ), 'Succesful three-arg pipe open read' );
# No point testing $! because it will correctly be set to ESPIPE (29, illegal seek)
my $out = <$pipefh>;
is( $out, "hello\n", 'Succesfully read from pipe with three-arg' );
ok( close($pipefh), 'Successfully closed pipe' );
# No point testing $! because it will correctly be set to ESPIPE (29, illegal seek)
# Two-arg pipe write
$out = '';
ok( open( $pipefh, "cat $tempfile|" ), 'Succesful two-arg pipe open read' );
# No point testing $! because it will correctly be set to ESPIPE (29, illegal seek)
$out = <$pipefh>;
$out .= <$pipefh>;
is( $out, "hello\nworld\n", 'Succesfully read from pipe with two-arg' );
$! = 0;
ok( close($pipefh), 'Successfully closed pipe' );
is( $! + 0, 0, 'No error' );
}
);
done_testing();
exit;
|
